This chart of comparisons can be used with the following questions: "Which line is twice B? Which two…

This diagram represents a student's thinking and progress in math. The image on the left is concrete…

"A cord of wood is a solidly built pile of 8 feet long, 4 feet wide and 4 feet high. 1. How many cords,…

Students work on math in front of the class using an early abacus and writing on the chalkboard.

The circle of multiples can be used as a practice game in class. The outside ring are multiples and…

This set of numbers is used by a teacher to help the students practice adding numbers in columns. After…

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