PBS
Pbs: Greatest Common Factor
In this video, learn how to find the greatest common factor of two numbers. Then, see how this can be used to solve problems with large numbers. In the accompanying classroom activity, students learn to find prime factors using factor...
ClassFlow
Class Flow: Factor Tree
[Free Registration/Login Required] The teacher will use this lesson plan to review multiplication factors.
Scholastic
Scholastic: Study Jams! Math: Multiplication & Division: Prime Factorization
This site provides great practice on the concept of prime factorization. Students can first learn about the topic by watching a step by step instruction video that also points out areas of concern. Finally, students can practice their...
Homeschool Math
Homeschool Math: Prime Factorization
This site contains a free lesson on Prime Factorization in which students learn by doing practice problems.
Other
Global Classroom: Kidspiration Math Templates
Download the Kidspiration templates to be used as supplemental math resources. Templates include the following elementary math topics: fractional parts, ordering fractions, multiplication, place value, matching shapes, ordering numbers,...