CK-12 Foundation
Ck 12: Algebra: Domain and Range of a Function
[Free Registration/Login may be required to access all resource tools.] This concept introduces how to find the domain and range of relations.
National Council of Teachers of Mathematics
Nctm: Illuminations: Pan Balance Numbers
Use this tool to find out if expressions are equal to each other. If the pan balance levels out then the expressions are equal.
Better Lesson
Better Lesson: Trimester Assessment Day
It is important to assess understandings of concepts that students have worked on before moving ahead with new concepts or higher level thinking.
Other
Dans Math: Lessons: Basic Skills Topics
If you're looking for a short review of the basic skills needed for arithmetic, prealgebra, and beginning algebra, this could be the site for you. Dan Bach, who teaches mathematics at Diablo Valley College in California, provides brief...
Can Teach
Can Teach: Target: An Equations Game
Using decks of cards and knowledge of number operations, students develop multi-step equations to reach a target number.
Utah Education Network
Uen: Equivalent Expressions
This multi-segment lesson plan uses games and calculators to explore the concept of equivalent expressions. Students work together using inverse operations to isolate variables in algebraic equations. It also provides attachments for...
Annenberg Foundation
Annenberg Learner: Thinking About Slope
Explore the concept of slope. Ask yourself why the slope between pairs of points would change or why it would stay the same.
Cool Math
Coolmath: Permutations
This CoolMath resource will help students understand the concept of "permutations" in
Free Math Help
Free Math Help: Domain and Range
The Algebra session investigates domain and range. Students learn about the concept through definitions and sample exercises with graphs.
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