This resource discusses the use of manipulatives in the study of Algebra. The author sees benefits in symbol manipulation to enrich understanding, in geometric interpretation strengthening the connection to other parts of mathematics,...

This lesson solidifies students' understanding of time to the hour (while enriching with basic geography content) and continues to build back up to 3rd grade goal of time to the minute.

This is a hands on lesson in which students will explore their local community to identify living things. It can be used as part of a unit on biodiversity and energy transfer within a biology, zoology, or environmental science course, or...

[Free Registration/Login may be required to access all resource tools.] CK12: Inequalities with Addition and Subtraction of Fractions