22 October 2008

Exploring numbers

We were each given a secret number and some instructions.  For our secret number, we had to use pattern blocks of the same colour to make a pattern to represent that number.  The pieces had to touch one another.  Take a close look at these five posters; what do you think is the secret number?  Count carefully!

IMG_9454 IMG_9460 IMG_9464 IMG_9466 IMG_9469

What about these next ones?  What is the same about all of these?

 IMG_9459 IMG_9455IMG_9462 IMG_9470 IMG_9463 IMG_9467

Has everyone counted carefully for these next ones?  What was their secret number?  Were they easier to check than the previous ones?  Why?  

IMG_9456

IMG_9471

And now look at these.  Not all of these posters have the same secret number.  I wonder if you can sort them out.

 IMG_9458

IMG_9465 IMG_9468 IMG_9474

And now look very very carefully at these last four; I wonder if you can spot any 'deliberate' mistakes?  What is the secret number for each poster, and which patterns did not follow the rule?

IMG_9461IMG_9457 IMG_9473  IMG_9472

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