by Jessica |

We borrowed these ones from secondary,

Tak-tiles |

First we named the basic areas (not shapes). No sooner had we named

**c**than Sophie observed that a is made up of b and c.
Harry put it as equation:

b + c = a

The blue rectangle on the right for instance is two of the a-squares, to be written

**2a**.

Someone noticed that sometimes you could describe an area in more than one way, for instance with the red shape on the left of the puzzle:

So we got creating, filling the empty grid to make our designs:

The only rule was that everything had to be made up of abcs. There were to be no other-shaped bits that couldn't be broken up into as or bs or cs.

Here's some of our work:

The next thing to do was to start describing shapes in terms of area using abcs.

Millie's M for instance, we worked out to be 6a + 4b.

There's lots more. What would be the area of Max's green dragon be?

And then more tricky questions. Someone objected that those white "eye shapes" in Max's design aren't allowed. But when we thought carefully about it we realised we could describe it with the abcs.

You could easily have a go at creating a design yourself. Just click on the blank grid and download it. Then open it in Paint or whatever colouring-in program you prefer - and go.)

by Amandine |

Amazing work Year 5. Well done.

ReplyDeleteMr Wade

These look fun! I've used the pattern blocks for algebra before, but these look lots of fun. Well done.

ReplyDelete