Which One Doesn't Belong?: A Shapes Book

This book is AMAZING. I use it in learning center for students with mild/moderate learning disabilities, and it really helps boost participation at the start of sessions and it's great that everyone can be right...as long as they justify their answer. I've also enjoyed talking it over with my husband and family members. It's a FANTASTIC book and what a fun concept that can be applied easily to other areas like numbers, equations, graphs, etc...not just shapes! I highly recommend this book to anyone!

I read this book to my 5/6 compacted math kids and they loved it! The idea of there being no wrong answer as long as you can provide solid evidence for year reasoning is a great one! My kids loves the Which One Does Not Belong idea so much they started creating their own on Google Slides!

This led to very fun and in depth conversations with the family. It helped our 5 year old develop language she was learning at school and think about different properties of shapes. We were shocked at some of the ideas our two year old shared, and it even led to discussion between myself and my husband. Totally worth getting for a family with kids 2yrs-12yrs?

Great book for having conversations about mathematical shapes for kids and adults of all ages! Further, this book nicely models how to have open-ended conversations. Math is not black and white and it's not always about getting to the one, correct answer. The language of mathematics is beautiful, open-ended, and full of contradictions and opportunities to argue. This book embodies that while disguised as a children's shape book.

I love this book. It's such an awesome way to engage with multiple kids of multiple ages alone or together. They can each come up with their own answer for each page and share their thinking and there's no real right or wrong and everyone is engaging in terrific thinking. Super fun for grown-ups too and allows us to see how kids think and see things we sometimes miss.

We’ve shared this book with multiple nieces & newphews. It’s a great way to get young children to think mathematically without doing typical math problems. In my experience as a math educator, the thinking involved in this book is much more valuable.

Love this book. I had printed the earlier online version, which we wore out quickly. Ages 3 to 74 have enjoyed tackling each page. What an eye opener for many. Fun for all. Great thinking is reduced for us mere mortals. Thank you, author. I follow you Online.

Love the idea. Can be a springboard for a good discussion on geometry. Also an effective way of reviewing definitions and properties of polygons and other geometric figures. Have used in class to illustrate a part of math where there could be more than one correct answer.

As soon as I opened my parcel with this book my 11 year old son read it discussing all the pictures from beginning to end and told his big brother how fun the book was. As a parent this felt great! As a teacher I can think that maybe my 11-years old son is a bit too old for this book, but if he likes it it works! My children aren't used to a more fun approach to maths in their school, unfortunately, as this book can provide. From the pictures you can have rich discussions and students practice using concepts and describing concepts aso well as justifying their answers and listening to and learning from each other.

Great book for many ages, love this book for my grade 5’s.

Fantastic resource for promoting communication and higher level thinkingin math. My grade one class loved it and so did I !