Which One Doesn't Belong?

"Every page of this innovative picture book contains a thoughtfully designed set of four shapes and the question 'Which ... (more)

"Every page of this innovative picture book contains a thoughtfully designed set of four shapes and the question 'Which one doesn't belong?' Each of the shapes could be a correct answer to the question. Because there is no one right answer, children naturally shift their focus to justifications and arguments based on the shapes' geometric properties."-- (less)