3.2 Task

Kaylan Kersey

Can you solve this problem?

1. How many squares and triangles are there in the following drawing?

Solving the problem...

Many students will look at this picture and only count the number of triangles and squares they see right away instead of looking at the whole image to see how many could be hiding. Some students may look at this problem and say 10 triangles and 2 squares or 4 squares and 12 squares.

It is important that the teacher ask the students if they are sure they have looked at the whole image and counted all the possible ways a shape could be made. Some students may take this as a time to think about their response where as others may just feel confident in their previous fast response.