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!
What about these next ones? What is the same about all of these?
Has everyone counted carefully for these next ones? What was their secret number? Were they easier to check than the previous ones? Why?
And now look at these. Not all of these posters have the same secret number. I wonder if you can sort them out.
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?