Subtraction: Number Square
In this subtraction activity, students use the number square on the page to help them solve the ten 2-digit subtraction problems. The answers are on the second page.
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Mayan Mathematics and Architecture
Take young scholars on a trip through history with this unit on the mathematics and architecture of the Mayan civilization. Starting with a introduction to their base twenty number system and the symbols they used, this eight-lesson unit...
4th - 8th Math CCSS: Adaptable
Integers: Addition and Subtraction
Young mathematicians construct their own understanding of integers with an inquiry-based math lesson. Using colored chips to represent positive and negative numbers, children model a series of addition and subtraction problems as they...
5th - 8th Math CCSS: Adaptable
A Five Day Approach to Using Technology and Manipulatives to Explore Area and Perimeter
Young mathematicians build an understanding of area and perimeter with their own two hands in a series of interactive geometry lessons. Through the use of different math manipulatives, children investigate the properties of rectangles,...
3rd - 6th Math CCSS: Adaptable