This fifth-grade lesson explores the area of a rectangle with fractional side lengths. We tile the rectangle with unit rectangles and show that the area is the same as would be found by multiplying the side lengths. We multiply fractional side lengths to find areas of rectangles.
Learn the basics of how to calculate percentages of quantities in this easy lesson. [5:22]
A complete lesson about multiplying decimals by decimals. Video explains the rule for multiplying decimals with examples and practice exercises. [6:16]
Students practice their multiplication skills using robots with wheels built from LEGO® MINDSTORMS® NXT kits. They brainstorm distance travelled by the robots without physically measuring distance and then apply their math skills to correctly calculate the distance and compare their guesses with physical measurements. Through this activity, students estimate parameters other than by physically measuring them, practice multiplication, develop measuring skills, and use their creativity to come up with successful solutions.
In this video segment from Cyberchase, Inez estimates whether she has enough jelly beans in her large container to decorate all of the cookies in her batch.
Brush up on your math skills relating to factors then try some practice problems to test your understanding.
Brush up on your math skills relating to the associative property then try some practice problems to test your understanding.
Brush up on your math skills relating to the commutative property then try some practice problems to test your understanding.
This short video and interactive assessment activity is designed to teach fifth graders about selecting the quotient with the correct number of digits.
This short video and interactive assessment activity is designed to teach fourth graders about selecting the quotient using given statements.
This short video and interactive assessment activity is designed to teach third graders about finding the incorrect equations.
This short video and interactive assessment activity is designed to teach fourth graders about identifyinging common factors.
This short video and interactive assessment activity is designed to teach fourth graders about identifyinging prime or composite numbers.
This resource investigates the concept of factors by creating rectangular arrays. The interactive tool allows learners to relate area to multiplication.
In the Product Game, students start with factors and multiply to find the product. There are four parts to this investigation.
This short video and interactive assessment activity is designed to teach third graders about inequalities.
Download these free worksheets to sharpen your skills working with integers. Sheets focus on comparing and ordering integers, adding, subtracting, multiplying and dividing integers, and order of operations with integers.
Read an explanation of both the addition and multiplication properties of inequalities. Examples and practice problems (with their solutions) are also provided.
After completing this tutorial, you'll know what a linear equation is and how to solve one using various arithmetic properties. Contains several definitions, problems with step-by-step solutions, and practice exercises. Includes links to other sites for additional help.
Explains what the commutative property of multiplication is and how to use it. Includes examples and practice problems throughout, along with explanations of solutions.
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