Really enjoying this book:
A great way to focus on the properties of shape and to start conversations and thinking. Each page has four shapes and the challenge is to find which one doesn’t belong. Any answer is acceptable as long as it is true. The important thing is to have a reason for your answer.
Can you find a reason why each of the shapes on the cover don’t belong?
How is the shape you have chosen different from the others?
What do you notice?
By doing this activity you are encouraging learners to notice similarities and differences, to use correct mathematical language, to reason and to explain their thinking.
The question on each page of the book “Which one doesn’t belong?” is the same but some pages are more challenging than others. They really make you think.
Find more ideas from this author at www.talkingmathwithyourkids.com