Three students use measuring tape to measure the school garden outside.

Measuring Garden

Three students use measuring tape to measure the school garden outside.

A teacher helps students do math with a sand table, a predecessor to the abacus.

Sand Table

A teacher helps students do math with a sand table, a predecessor to the abacus.

A teacher watches a group of students weighing apples and writing out measurement problems on the chalkboard.

Weighing Apples

A teacher watches a group of students weighing apples and writing out measurement problems on the chalkboard.