Christopher Danielson’s Blog

11+ years old 5 and 6 years old 7 and 8 years old 9 and 10 years old blog Geometry

Which fits where? A three-dimensional challenge

By Christopher Danielson | Oct 25, 2020 | 1 min read

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

On the left an array of 9 two-dimensional cutouts (two triangles, two circles, a parabola, a half ellipse, two rectangles and a trapezoid); on the right, five solids with a common width and height (sphere, cylinder, cube, cone, and pyramid)

4 years old and under 5 and 6 years old Algebra Arithmetic Math at Home

Eggs

By Christopher Danielson | Oct 7, 2020 | 3 min read

Eggs are inexpensive and come packaged in math.

Small speckled eggs in clear carton; 3 rows of 8 eggs

4 years old and under Math at Home

Ask follow up questions

By Christopher Danielson | Oct 6, 2020 | 1 min read

Asking questions keeps the conversation going, and that's where the learning happens.

Spoon with dots

4 years old and under 5 and 6 years old 7 and 8 years old 9 and 10 years old Math at Home

Math at Home: Reading

By Christopher Danielson | Oct 6, 2020 | 3 min read

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

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