364. Area of a trapezium
Maths Sandpit
by MsKMP
1y ago
A very quick post for you today: a structured worksheet on finding the area of a trapezium. PDF worksheet with answers: Area of a trapezium worksheet minimally different with answers   ..read more
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363. A-level Exam misconceptions 2022
Maths Sandpit
by MsKMP
1y ago
It’s been a while, but I’m back. Crazy times and all that! Today I’m sharing a presentation about my thoughts on the Edexcel A-Level Maths papers, from the perspective of reviewing students papers. As a KS5 Co-ordinator I am asked by students to look at borderline papers before they send them off for a paper review. The mark schemes were very clear on where marks should (or should not) be awarded. This presentation (or set of posters) highlights the most common student errors I spotted during my reviews. I would also say that these are most frustrating issues as they are so easy to fix. Unfor ..read more
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362. Jaffa cake fractions
Maths Sandpit
by admin
1y ago
Been a while since I had time to write a blog post! Today I was doing a fractions refresh with Year 7. I needed to instill the difference between cutting in two and cutting in half. After a quick dash to the village shop at lunchtime I was ready… Equipment Jaffa cakes or other easily cuttable food stuff, plate, knife, visualiser (optional) Instructions Stage 1: Ask a student to cut a Jaffa cake into two parts with one straight cut. The student then chooses which piece to eat and which piece to give to a friend. Having the visualiser meant the whole class could see it happen. When we did it the ..read more
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361. Routes, Reindeer & Reasoning
Maths Sandpit
by MsKMP
3y ago
Well, we are nearly at the end of a very crazy year. Congratulations on surviving it! So, it’s been a while since the last blog post. Apologies for that. At the moment I am involved in Mixed Attainment teaching with Year 8. To finish off the term, I thought we deserved a bit of fun. We have a week of lessons left so I’m going for a mini project each lesson. Lesson 1: Santa’s Route I found this fab task on the Maths Drill website. There is a real chance for extension in this task, which is great for the mixed attainment classroom. Lesson 2: Reindeer Ratios We have been following the White Rose ..read more
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360. Preparing for online learning
Maths Sandpit
by admin
4y ago
A few tips for forward planning with Google Classroom in case of school closures, plus a few other hints and tips. 1. Check that all the correct students are on your Google Classroom class list – especially with leavers, joiners and set moves. Invite them by email if necessary. Same goes for other digital assessment platforms. 2. Check that the teachers of shared classes actually all have access to the classroom 3. Do not put everything on the Stream – it will get chaotic very quickly. Post all materials on the Classwork tab. It will automatically be put on the stream, but you will be a ..read more
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359. Proportional steps
Maths Sandpit
by MsKMP
4y ago
Just a quick resource upload today. Image credit: https://www.heyn.co.uk/ I’ve written a step by step resource on how to construct algebraic direct proportion relationships, including the answers. Small steps in Direct Proportion (docx) Small steps in Direct Proportion (PDF) I used this with a Year 11 class who aren’t very confident with algebra. They were surprised by how straight forward the work was and were happy to now attempt problem solving with algebra ..read more
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358. A spatter of trig
Maths Sandpit
by MsKMP
4y ago
The fabulous Mrs D (@mrsdenyer ) shared this forensics video, by crime scene analyst Matthew Steiner, on Twitter. At eight minutes in the presenter looks at blood spatter analysis. The use of basic trigonometry in a practical situation is a gift of a video for a starter in lesson.   My class were absolutely silent throughout and wanted to watch the whole video, however they may have just been trying to avoid work. I shared the video link with them via our digital classroom platform. We are now using blood spatter for 3D trigonometry examples rather then mobile phone masts. Gory, but effective ..read more
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357. It’s not square!
Maths Sandpit
by MsKMP
4y ago
I do love a little challenge for A-level Further Maths students. They are often confident and very capable mathematicians, but occasionally overlook the small details. This challenge looks into which strategies students use when working with 3D vectors, lines and angles. The most annoying thing? There is no single correct answer. What is the investigation? Students start with two points, create a line, construct two perpendicular lines and then join up the lines – did they create a square? How do you know? Justify it? Download the instructions here: It’s not square (docx), It’s not square (PDF ..read more
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356. Edexcel Shadow Paper
Maths Sandpit
by admin
4y ago
Wow, it’s been a while since my last post. Apologies for that. I’ve been busy with Key Stage 5 things. One of my projects has been creating a shadow paper for the Edexcel AS Maths exam. With so few past papers available and so many papers available online, I wanted an assessment that my students couldn’t find the mark scheme for. I’ve taken the AS Pure 2018 paper and created a shadow paper, with markscheme. Same level of difficulty, different numbers. I publicised it on Twitter and shared it with over ninety educators in 48 hours. I was stunned by the popularity of this resource. To keep it s ..read more
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355. Toyota logic
Maths Sandpit
by admin
5y ago
My fabulous colleague, Mr G, has recently been to the local Toyota factory to find out about the Lean model. The key principles involve efficiency of process. He told me about a school using the Lean model that had tape diagonally along the spines. Students put their folders back in order and the teacher can instantly see if a file is missing. Genius! Now I happened to be about to cover my textbooks with sticky back plastic. I put duct tape around the spine before covering them. Each book has tape 1cm lower than the previous. Now you are thinking – that looks nice, but it will never work. I’v ..read more
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