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The powerpoints you find in my shop has been tried and tested in my classes over the past 10 years. Each one consist of a variety of examples, already animated, ready for you to use.

I strongly believe that the more active learners are in the class the more they learn, so you will also find some interactive activities that encourage active learning.

Gr.10: Volume – Changing dimensions [PDF]

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Sold By Renate Rohrs
Always use Thinking Tools


Author: Renate Rohrs

This investigation allows learners to see the effect on volume when you change one, two or all three dimensions. It was designed as a self-study activity (and can also be used as an assessment but there is no investigation in term 3/4) but I have also used it very successfully as the backbone of my lesson.

Learners need to be familiar with the Volume of a prism, pyramid and cylinder.

BONUS: I have added notes about 3-dimensional shapes as a free extra. I use this as the introduction to the chapter. Learners keep the info sheet next to them for the rest of the chapter in order to look up the formulas quickly.

Always use Thinking Tools


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I have been a maths teacher for 10 years, and during this time I have seen how teaching have changed from using only a blackboard and the examples we make up in class to interactive activities and sharing resources. These changes excites me.
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