How is the site changing?
Get a detailed summary of every change and update here.
One of the major advantages of web based resources must be that they remain dynamic. Whilst I hope there is already a significant amount of very useful resources on this site, the advantage to subscribers should be that they are being constantly updated and added to, so that the resource gets better and better and moves with the times. The 'What's New?' section on the homepage gives notification of new pages, but updates and changes to the site will come in many different shapes and sizes. There will be new worksheets and activity sheets added to pages and corrections made to existing resources. I will count on help from users to prioritise updates and make corrections. Even with the long editorial process of book publishing, they still get published with errors that the buyer can't correct. I am working without that process and so I know there will be errors, the difference is that I can put them right as soon as you let me know about them. Please use the 'Submit feedback' button at the top and bottom of each page to let me know about any errors you find and more importantly any suggestions you have for developing the site. What follows is a list of updates that are being made to the site as I make them. New entries will go at the top. Thank you.
Updates and Notices
With a keen focus on the new curriculum, I have started to write a scheme of work for the N & A New Syllabus 2019 unit!
I have added some answers keys to the sets worksheets on the L, S & P Practice page. More are needed and on the list!
I made some corrections to the answer key to the tangents and normals exam style questions on the Calculus Practice Page. Thanks to Malcolm Blake for pointing those out
Check out this page on Which one doesn't belong for some ideas to get good conceptual thinking going on in your classrooms.
INTERNAL ASSESSMENT AND THE NEW CURRICULUM! We know this is going to be a big issue for all of us so please check out this great page New Internal Assessment - a Comparison which gives us lots of detail about how we are going to need to shift our thinking related to IAs in the new syllabus. The page also links to this one New 'Exploration' Internal Assessment which in turn links to 5 examples of current studies projects that are shown here on Marked Projects but now marked against the new criteria (based on some assumptions about the details to come) Aircraft - Exploration marks GDP and Fertility Exploration marks Gun Crime - Exploration marks Human Development - Exploration marks Popular Lyrics - Exploration marks This is a major update thanks to Ollie for lots of hard work in preparing this.
HAPPY NEW YEAR to you all where ever you are - Wishing lots of good things! This is a big year for IBDP Maths teachers and for us here at this site. The NEW DP courses are being taught for the first time in September this year. Can we just repeat that this site will cater for all of your needs for the new Maths Applications and Interpretations course whilst simultaneously seeing out the last of the Maths Studies students in November 2020. YOUR SUBSCRIPTION TO THIS SITE WILL AUTOMATICALLY AND SIMULTANEOUSLY BE A SUBSCRIPTION to MATH APPLICATIONS which will launch in Spring this year. When you log on you will just be asked which of the courses you want to focus on.
I am also delighted to announce that my great friend and colleague Oliver Bowles is joining the team to help us make sure we are giving you as much value as we can for the subscription fee. Oliver is a principal examiner and experienced workshop leader for Maths SL. He and I have both been involved with the curriculum review and design of the new courses with a particular focus on the new Applications and Interpretation course. We are very excited about the new courses. We know they will cause some issues, but we hope we can help teachers, students and schools everywhere to combat those issues! Here we go!
Some of you may also have noticed that Cornelia Noble is also on the team behind the scenes. She is doing sterling work on a publishing and administrative level and will be taking on more and more as we move forward. We are all excited about developing this resource for the future! As ever, we are always keen to hear suggestions (Use the feedback button at the top right of any page)
To get us started, I have just added a page about CAS Ideas which has already got me excited about some of the projects I have for this year. Hopefully there are some useful suggestions for you too!
This is a little blog post about Compound Interest that is more thought provoking the more I think about it!
New project example - Meat Consumption
Now increasing the range from 10/20 to 19/20 here is another example Popular Lyrics
Continuing the recent theme here is another project example, this time a lower scoring one that might be typical of a number we see. Speed
Following a great question from a user - Thanks Peter - about categorising numerical data for chi squared tests, I have added some thoughts and ideas to this A project journey page.
Here is another marked example of an Internal assessment that scored highly. On the Human Development page you can see how high marks can be justified.
I have been working on this page for Non Statistics projects ideas to try and offer some concrete examples and ideas for how students could branch out from stats for their IA.
I have written a set of questions to go with this gem of a ToK video on how Mathematics is Forever to help students catalogue some examples that they can use for their ToK assessments. It is very approachable, funny, short and to the point. Save it for the last 15 minutes of a lesson one time and help students answer the questions. Alternatively, send them to the page themselves and let them work independently.
I have been redesigning some things for the new Applications site and so have updated the Visual Sequences with a nice new slideshow and made a correction to the Arithmetic Sum activity and worksheet - I have always seen these things going together. NOTE - IF you subscribe to this Maths Studies site, you wil automatically be subscribed to the new Applications and Interpretations site, AND you will have access to both during the transition. I am probably going to say this a lot to make sure people are clear!
I have just added this page about A project journey that I have been using a lot at teacher workshops - and of course with my own students. The page describes the journey from a hook, idea or inspiration to a meaningful project that meets the criteria by looking at a particular problem.
Thanks to some user feedback, I have corrected a number of typos in this Curriculum Review and 2019 page. Rereading it myself reminded me how close some of these tough decisions are, so I thought it worth bumping it up the list to the updates page.
I posted a blog about This Years projects 2018 to help keep the ideas going!
Following some gaps spotted by a user, I have now completed another set of questions - 50 marks on correlation and regression which you can find here on the Statistics Practice page and also the Focus on correlation and regression page. Thanks.
Hopefully you caught the updates on the new syllabus while I was away!
Hi all - This is just a quick note to let you know that I am going to be away from the site for a few weeks. I have set up some automtic publishing that will slowly release some new pages that compare existing units on the mathematical studies course to the new units in the Mathematics - Applications and Interpretations course at SL. Information on the HL part is already available here, New Curriculum(2019): Applications , but for these pages I am trying to cater for the large group of teachers who will likely be changing the current maths studies course for the new AI course! We still have time, but it will creep up on us. Anyway, please accept my apologies in advance if you make an inquiry via comments that doesn't get answered. I will do so as soon as I can! Thanks for your understanding - Jim
Hot off the press, read about the new Final Report to teachers available on MyIB
A few issues I have about data and surveys that I think our students need to think about! Problems with surveys
I posted another blog about the 2019 curriculum Changes, 2019 , which asks you about your priorities for managing the change
Thanks to a user pointing it out, I have replaced the applet on this Sets of Quadrilaterals page
I have added a section on bringing ToK in to teaching exponentials on this Focus on - Exponential models page
I have had a good look through the May TZ2 papers and added a review in this blog post
With many thanks to users for taking time to correct errors, I have made some corrections and added the word files to the Mock Exam page.
As promised I have completed the Calculus revision pack to complete the set of Exam Revision Packs to help students prepare for may exams. This includes another 15 original exam style questions with solutions. Don't forget to tell your students about the virtual teacher site at StudyIB.net which works well with these packs. Hope it is useful!
Hi all, I have been working away on the Calculus revision pack to complete the set of Exam Revision Packs . I am close and it should be ready this week! Just 5 more original questions to write and solve. (They take a surprisingly long time). I need it for my own students so it is definitely coming.....
I have added a set of solutions to the optimisation exam style questions on the Calculus Practice page and u^dated the questions themselves to correct a couple of errors.
I have published a whole new Mock exam paper on the Mock Exam page with both papers and original questions. I'll do the solutions when I get a chance!
I have posted 2 new notes sheets on the Calculus Practice page following a request for them!
I have added to the Focus on Non-right angle trigonometry page, including some notes on the ToK angle here.
Thanks a lot to users who are pointing out briken links and erros. I am really grateful for your help!
I have added a set of answers to the Normal Distribution practice questions on this Statistics Practice page
I have tracked down some of the embedded items that were not showing and now should be, mostly on the Internet guide pages. Please let me know via the feedback button at the top if you find some more. Thanks!
Happy New Year to all. I have added a set of teaching slides to the Focus - Cumulative Frequency page and some unit plan notes about including ToK during this unit.
I know some of you are getting in to Mock exam season so I have finally managed to prodduce some worked solutions to this Mock Exam paper.
I have made some additions to the Calculus Internet Guide page! I am always keen to get ideas and links for these pages.
Busy November! I was lucky enough to be offered the opportunity to do some consultancy work with a school in Japan. It is always brilliant to visit other schools I get so much out of it myself and usually lots of ideas to bring to this website too..
Following requests, I have added a suggested answer key to the Frequency Distribution Match
To go with recent work on Volume and Surface Area I have written up some good activities for exploring Pyramid Volume. lots of good practical activity for exploring these shapes and making sense of the volume formulae.
I have been making a few corrections around the site as part of some on going maintenance. Thanks very much to people who take the time to point out errors!
Oliver has done lots of great work here New Curriculum(2019): Applications helping to make sense of the curriculum review information that is published on the OCC. These courses are for first teaching in 2019, two years from now. Clearl, we are waiting for more detailed information. Based on what we have so far, Olliver has given us a really helpful overview on how it looks like it will all fit together. This current plan is that this site will morph in to the site for the Mathematics, Applications and Interpretations course that will be available at SL and HL.
Its been back to school for me this month! Always an exciting time of year. I have posted a few updates to the site this month. There are now four sets of teaching slides for Volume and surface area all of which can be found here - Volume and Surface Area
I have added a The Normal Distribution page to begin to put all the resources for the normal distribution together. I have started by adding a set of teaching slides! See below...
Oliver has been working on some really useful diagrams to help us understand the new syllabus that is approaching! Check out this new diagram on Statistics & Probability. See more and watch this section develop New Curriculum(2019): Applications.
I am pleased to say that my colleague Oliver Bowles is going to be helping me develop this site as we prepare for the significant syllabus changes for first teaching in September 2019! Oliver has started to make sense of the information we have so far here on the New Curriculum(2019): Applications page! Watch that space as it develops.....
Thanks to Ewa Panetta for point out an error on the 15 Countries and 200 years activity. I have corrected it and taken the opportunity to revamp those pages a bit, update the printable resources and elabaorate on the thinking behind the activity.
Here is a long blog post about 'First Draft Feedback' and the way I have been running the IA process this year.
I have been doing some thinking about Focus on Probability and added some sections to this page, particularly on ToK in which there is a lot of potential here.....
Here we go then... Project Maps is the first of a new page/resource I have developed this year with the aim of making a better start to the IA unit... more on the way.
I have been busy re thinking the IA section.... news soon
New Blog Post - Venns in the news - A quick reaction to some of the things I have seen recently!
New Blog Post - This Years projects - a run down of some the ideas going on with my classes this year. I am optimistic so far!
New Blog Post - Some new ideas on project mapping.
I have just added a page on Exam Advice - Little things that can make a big difference. You might want to share it with your students.
And here it is - the revision pack for Logic, sets and probability on the Exam Revision Packs page.
Please find the revision pack for Mathematical models on the Exam Revision Packs page! Nearly there now. The Logic, sets and probability one should be there before Monday 17th April 2017!
So I am really pleased to be able to announce free access to my new resource for students at StudyIB.net . It is a Beta version meaning that there are some gaps and unfinished business, but there is already a lot of very useful resources there to help students prepare for their exams and I am keen to get them using it. Visit the link above or this page StudyIB.net on this website for more information.
I have spent quite a bit of time this month on re writing the Exam Revision Packs page. It now has 3 brand new complete revision packs to help students prepare for their exams, with more to follow. Visit the page to see an explanation of how they work. I am delighted to have them myself and hope that they will be useful to lots of your students too.
Following a request, I did add a solution to the Cuboid Challenge page.
While we are here, lets remind you of this section Student writing guide which is a good checklist to help students put the finishing touches on their projects. There has also been a debate about correlation and independence on the Project Problems page, which makes reference to this blog post on the topic.
Many of us will be in project season one way or another, so here is another sample in the Marked Projects section. Television Series as with the others there are full justifications for marks awarded. See example below....
Here is a blog post about the percentage perception activity and some new data we have at our disposal
See the new page Focus on Non-right angle trigonometry with the gallery of explanations for this sub-topic
This month has been primarily about a full scale proof read (and correction) of the web pages on the site. Difficult to see I know, but lots of hours involved to hopefully improve the quality of the site. What we could correct as we go we did, we have a list of everything else to work through! This was necessary and will be repeated from time to time. Next up is a proof read and correction of downloads!
I have been building this Focus on SOHCAHTOA page which includes a new set of teaching slides.
I have been doing some Number and Algebra work and have updated the Percentage Perception to elaborate on the ToK angle and include some answers. I had some nice feedback this week about that activity...
'It is bang on the money. You can just feel the percentage error equation - drop dead boring by itself - come to life in the lesson. It is really relevant to an international class and its the sort of lesson that would have an inspector dancing in the aisles - maths made relevant and allowing the exploration of something pertinent in today's society. Sweet!'
Back to school for lots of us! I started my classes with a bit of a visual warm up this year - check out this blog post
I have just made some big updates to the The 6 million question activity as I prepare to do this with my students at the start of the year. Lots more images and videos to help make this activity count!
I am building the Focus on correlation and regression page with ideas, activities and practice resources.
Here is a blog post about the IB Americas conference and some reflection on this site and conferences in general
If you haven't seen the blog post on results, then check that out!
Have added a few paragraphs to the Teaching and Learning notes section of the Focus on Calculus Concept page!
Just returned from an exciting trip to Toronto and the IB Americas conference. It was terrific to meet lots of teachers from the region and also to meet some happy subscribers face to face! Hope to see some new schools from the region on board soon.
Check out the Focus on stationary points and optimisation page - as promised.
I have been making some additions to the Focus on Calculus Concept page, including a piece about the ToK leap to using limits to build new knowledge! Am also working on a 'focus on stationary points and optimisation' page that will be published next week...
And with summer holidays come results! Hope all your students got what the needed!
Summer holidays for Northern hemisphere schools! Hope everyone has a good one! I am off to the IB Americas conference in Toronto next week. Maybe I'll bump in to some of you?
Mostly only small adjustments, corrections and additions made to pages during the month of June
Check out this new activity for thinking about frequency distributions - Frequency Distribution Match. It is part of preparations for working with the Normal Distribution. Match 12 distributions with their diagrams!
And now one on Non Right angled trigonometry. See the G & T Practice page
Exam season - cant get enough practice! There is a new set of exam style questions on right angled trigonometry on the G & T Practice page!
Another set of exam style questions on Coordinate geometry is now on the G & T Practice page
There are 10 new exam style questions for solving simultaneous equations with the GDC on the N & A Practice page.
Check out some updates to the Common Errors page ahead of May Exams!
I have added a quick idea and associated file to the Statistics Teaching Ideas about the chi squared calculator that I have used recently with a class.
Here is a new classroom activity, Box plots - why?, for looking box plots. Its one I have been using for a while with students and teachers on workshops and I find it a really powerful way of getting students to come up with the idea for themselves and then seeing its power as a comparative tool for understanding the world around us. As such, I have had quite a lot to say about it here on the Box plots - teachers notes. Much focus has been on exam style questions and teaching slides etc recently and it is nice to spend some time on another great teaching idea. I'd love to hear peoples thoughts.
A new set of teaching slides on calculus, check out Focus on Tangents and Normals
Here are two new sets of questions on Statistics that can be found on the Statistics Practice page. One on descriptive statistics and the other on Bivariate data. Both come with solutions.
Thanks to a user for pointing out some problems with 3D Uncovered which are now solved. The sketchup files can now be downloaded. I enjoyed reminding myself how useful it is to be able to look at 3D diagrams from different angles!
See the new Focus on Calculus Concept page for a new set of teaching slides on this topic along with links to activities and practice exercises.
There is a new set of exam style questions on Sequences on the N & A Practice page that covers both arithmetic and geometric sequences. Solutions are there too!
Happy New Year
This week I have added a great set of exam style questions on exponential models and their solutions to the Focus on - Exponential models page
Have been working quite hard on a new service for students - It will be a separate website with video lessons, online quizzes and more to compliment the teaching site. It will be available to individual students. Details soon and hoping to release it in Feb!
Please find a new set of exam style questions on Financial Mathematics on N & A Practice page.
There is a new page here with a Focus on Logic that includes some great teaching slides for this complex topic. See them on the gallery below
Hope everyone is looking forward to a good Christmas break wherever you are! I will be signing off for 10 days or so. A couple of new pages with teaching slideshows for Sets and probability will get published during the break Then in January, I'll post a new mock exam. Take care all - Jim
There is a new set of exam style questions on 'the Normal Distribution' available on the Statistics Practice page 10 questions, a mix of paper 1 and paper 2 style and the solutions! See the new Focus on - Exponential models page which includes teaching slides and links to activities and practice.
Just added a little section on 'Paper folding' to the Focus on - Geometric Sequences page.
Get some teaching slides and expanded sections on ToK and ATL when teaching with the Focus on - Geometric Sequences page! Lots of ideas, activities and practice for these ideas.
Another set of exam style questions on the Calculus Practice page. 110 marks on optimisation!
Here is another in the focus on series - Focus - Arithmetic Sequences with teaching activities, teaching slides, practice tasks, ToK references and Teaching and Learning notes to help with unit planning.
I have just added the latest in my series of 'Focus on' pages. This one is Focus - Chi Squared . The aim of these pages is to collect the things on the site relevant to particular syllabus items and topics. As the site gets bigger, these filters will be increasingly necessary. Also, the pages contain sets of slides for teaching and some deeper discussion of the teaching of the topic with opportunities to develop ToK and the IB learner profile. There is also discussion of approaches to teaching and learning which will be increasingly useful as unit planners become more common place
Read my first analysis of the curriculum review reports. Some serious changes in store!
Check out this new GDC Treasure Hunt activity. Great fun and terrific for reviewing/practicing/learning calculator skills
Following a number of questions on this recently I wrote a quick blog post about students using the chi squared test in their projects.
30 NEW EXAM STYLE QUESTIONS - I am really pleased to be able to add some exam style questions on Calculus to the Calculus Practice page. Find 3 sets of 10 questions on 1. General concept, 2. Tangents and normals, 3. General calculus. There are a mix of paper 1 and paper 2 style questions and the solutions. I have enlisted some help writing questions and would like to thank Dennis Oberg for writing these questions for the site.
I have just added these posters with Mathematical Quotes to get students thinking and help decorate your classrooms! Visit the page to see, download and print.
I am building this page about Mathematics in the Media listing some of my favourite examples for use in class. Plenty there already and more to come.
There is a new set of exam style questions for Logic on the L, S & P Practice page. Ten questions worth 80 marks, with solutions!
New Activity page, have great fun and do some good thinking with Nerf gun roulette
To go with the ATTL and planning page there is now an explanation of how I am going to help teachers gather evidence for Unit planning along with an example done for the sub-topic Sets of numbers based on this Sub-topic summary page template.
As part of an effort to improve past paper style questions, I have updated a question set for Numbers and Accuracy with solutions in the N & A Practice page.
A blog post about my plans for this website during my sabbatical!
So, the summer has arrived in Toulouse and I am at the start of a sabbatical from school that means, in theory, that I wont be teaching again until January 2016. The summer and the term following should see the site really develop to the next level...... Updates will be posted here. I am off on holiday for a couple of weeks now, but have scheduled some updates for that time so check the what's new section on the home page!
This weekend just passed I had some fun making this video about chi² and expected frequencies which fits nicely with the Independence Day activity....
I have been working on a new activity to help get students thinking about the Normal Distribution - coming soon!
30th May - For the last couple of weeks I have been working hard on this Student writing guide for the Internal Assessment . It is a currently 24 page guide to writing stats based projects for the IA. The tricky balance is to offer a good mix of sound advice and technical help without providing a formula for a project. I think I have done alright! Anyway, you can get the guide as it stands from the Student writing guide page as a PDF and I will continue to make more of it web based.
12th May - I have just given the Independence Day activity an overhaul having wanted to change a few things for my own use in class. I think it is tighter now and really leads students nicely to the idea that expected frequencies is an intuitive idea and not a calculation that needs to be taught. The activity sheets have been re-written and are now available as PDFs since the google docs were not so easily printed. I followed this with using the chi ² calculator idea which I talk about here in this Making Calculators blog. I'll be following that up with some Real independence tests
3rd May - There is a new notes file on the Calculus Practice now about finding where gradients are equal to zero. Reminder that these Notes Files are designed as a way to help students keep records and revise what they do. Not a complete set of notes, but not a blank canvas either. Students need to think to fill them out, but there is limited potential for them get things wrong.
26th April - I have just added a 'idea' and description for a great, practical activity to introduce calculus. Distance Time Graphs on the Calculus Teaching Ideas page. Writing about it reminded how good it can be! get a taster below!
14th April - I have been having some good conversations about Chi Squared, Regression and Causation that I have blogged about!
6th April - Here is a new revision resource called Revision Calendar I used to do this a number of years ago and have revived it this year. As simple resource to help students keep thinking about mathematics while they go on study leave!
29th March - I made a small addition to the Student Placement page which you might find useful when talking to students about choices.
22nd March - Here is a blog post I wrote about the projects my students did this year. I was really pleased with the variety and spirit in which the projects were done!
3rd March - Hi all, I would really like to start collecting some testimonials from site users and so have put this Tell us what you think. page together.
18th February - This is the first draft of a new activity I am really excited about. It is a simple activity for practicing % error, but the context is what makes it so interesting! here is the Percentage Perception page in the N&A Teaching ideas section.
Workshop weekend! - I have just a brilliant weekend doing workshops with teachers in Barcelona and in Rome - I know, someone has got to do it! Preparing for these does impede my website time a bit, but it gets my creative juices flowing so I have a number of new ideas that will go up as a result!
12th February - I have just added some elaboration to go with the presentation on the Student Placement page.
4th February - Following a request I have added a blank spreadsheet template for use in marking and moderating course work to the Marking & Moderation page.
28th January - I started a section on Student Placement since we had an evening for prospective students and many are beginning the decision making process for which mathematics course to choose. There are some presentation slides that you might find useful to show to students/parents and I have begun elaborating on them.
14th Jan - Check out the Site Development page to get an idea of what my priorities are. There is an invitation to contact me and help me set them. I have re-written this page in a way that makes more sense and will be more dynamic. I confess that I have so many plans for the site that I sometimes lose site of what is already here. The site is already huge but it is growing all the time (read this page). Let me know if you have some thoughts.
7th Jan - I added another notes file on Basic probability to the L, S & P Practice page. getting there!
6th Jan - I Published the January 2015 Newsletter. this will go to those on the e-mail list too. Some ideas, links and thoughts about Approaches to Teaching and learning.
3rd Jan - And today I made three new 'Revision Notes' files and put them on the L, S & P Practice page. As revision looms for May 2015 candidates, these are going to be really useful. Read more about what they are here - Notes Files Only a couple more to go on this section, then the calculus section and we will have the complete set. I will be using those with my students this year. See example below....
2nd Jan - Happy New Year to all! I have started as I mean to go on and have been tackling some obvious gaps on the site. Today, there are 3 new, detailed worksheets/practice exercises for probability on the L, S & P Practice page. Following requests from some users, I have made these available as PDFs, which I have also embedded in the page so you can get a quick look
I just added a quick idea to the L,S&P Teaching Ideas pages called 'Nerf Gun Roulette'. I have been having fun with that this week. It is good fun and a nice conditional probability problem. I was quite impressed that my students could solve it!
I have just added a page on the group 5 Aims and Objectives where you can download some posters for classroom display.
Here is a quick blog post about some data that crossed my path earlier today and how we might be able to use it for teaching stats or projects.
I have been making some small edits and re-arrangements under the Getting Started section to bring some things up to date.
Two more worksheets and some answers added to the Functions Practice page
Added another question and set of answers to the Logic Practice questions on L, S & P Practice
Just added 4 new IB style questions on Financial Mathematics as a document on the N & A Practice page.
Now there is another questionnaire on the Real independence tests page. Is preferred Wine Colour, dependent on Gender?
I have just posted a blog on ToK and my own personal perspective.
I have just added an activity, Human Sudoku , to help teachers and students examine ToK and Mathematics. This is particularly approachable for Studies students.
I am beginning a section on the role the IB learner Profile plays for Mathematical Studies Students
Also taking shape at the moment is this new section on Theory of Knowledge . I do feel like that ToK runs through many of the activities on the site, but I am working on this section so that it makes some of this a bit more explicit.
I have a recently begun work on writing up a new activity that ticks some boxes for estimation and ToK. Not quite finished, but already useable, The 6 million question
I have just put up a new set of IB style questions on the N & A Practice page for Standard form, Accuracy, sets of numbers and percentage error. they can be used how ever you want, but the make a nice 50 minute test all together.
I have been getting very excited about this web app I discovered called 'The Logic Lab' I think it has lots of potential for helping with logic truth tables and have been working on a big activity to go with it. Read the blog post (linked above) and watch this space.
I have remodeled the Site Guide page to include a more detailed description of what you can find on the site and a screencast. this is probably more useful for new users. Please share with anyone you think might be interested in subscribing!
Thanks to Anna Binney for point out an error on the Which Rule? activity sheet which is now corrected!
I have added another new worksheet to the