Puzzle: NRich Maths- Painted Cube Investigation

26 05 2010

This week I used a fantastic open-ended investigation with my top-set Year 9 class. The problem was taken from the NRich Maths website and was called Painted Cube. It is based around the idea that a large cube (made up from smaller cubes) is dipped into a pot of paint, removed and the paint left to dry. You then dismantle ┬áthe big cube (pulling the smaller cubes apart) and investigate the following questions: Read the rest of this entry »


Why is algebra so useful?

26 05 2010

Why do we need algebra? What is it useful for?

Here’s a great article on the Republic of Mathematics blog showing how we can use algebra to solve a very interesting maths problem about probability.

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