7 and 8 years old

Each solid fits in at least one cutout, and each cutout fits at least one solid. Which is which and how do they fit?

Christopher Danielson | Oct 25, 2020 | 0

Mathy picture book recommendations. Both old and new, these are some of my favorites.

Christopher Danielson | Oct 6, 2020 | 0

Do children need to say "rhombus" instead of "diamond"?

Christopher Danielson | Jun 1, 2018 | 4

In which we determine how many grapefruits and avocados there are, and observe the brilliance of young children.

Christopher Danielson | May 19, 2018 | 3

Some great recommendations for mathy fun in person and online, and a lovely book by A.O. Fradkin and A.B. Bishop.

Christopher Danielson | Feb 19, 2018 | 2

When children hit adolescence, the conversations need to be more about them and their interests. Here's what that looks like.

Christopher Danielson | Feb 15, 2018 | 4

Make math playful with a simple question that has uncountable answers.

Christopher Danielson | Nov 1, 2016 | 5

What do you say when your child says they don't like math?

Christopher Danielson | Jul 18, 2016 | 5

Which fits where? A three-dimensional challenge