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Khan Academy

Khan Academy: Algebra Ii: Manipulate Formulas

For Students 9th - 10th Standards
Manipulate multi-variable formulas to isolate specific variables in order to solve some word problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Lesson Plan
Utah Education Network

Uen: Equivalent Expressions

For Teachers 9th - 10th Standards
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...
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Two Step Equations and Properties of Equality

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Learn how to solve two-step equations using the properties of equality. Tutorial includes video, lots of examples, and a set of review questions for practice or...