Curated OER
Muscle Movements
Students participate in a game to identify major muscle groups in the body and gain an understanding of muscle functions.
Curated OER
1 VS the Mob
Students prepare to become the first to cover four adjacent products, horizontally, vertically or diagonally by selecting factors that make the needed products. They play this game to acquire a healthy appetite for competition between...
Curated OER
Body Part Measurements
Second graders participate in a review of how to use rulers and yard sticks while collecting measurement information. They measure assigned body parts and chart the data on collection sheets. They make a spreadsheet with the information...
Curated OER
Discovering Pi
Fourth graders are introduced and experiment with the concept of pi. Using this information, they discover the relationship between the circumference and diameter of circles. In groups, they practice measuring the circumference of...
Math Is Fun
Math Is Fun: Addition in Columns
Simple instruction on how to perform addition of two- and three-digit numbers using columns. View animated examples and follow links to column addition worksheets.
NumberNut
Number Nut: Addition: Adding Three Digit Numbers
Explains how to add three-digit numbers by focusing on each column of digits as you add.
NumberNut
Number Nut: Subtraction: 3 Digit Numbers
A brief lesson on subtracting from three-digit numbers that includes detailed examples, rules, and further explanation of borrowing.