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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Problem Solving With Linear Graphs

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Devise a problem-solving strategy that uses a graph to solve real-world problems.
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Website
Maths Challenge

Maths challenge.net: Problem Solving Database

For Teachers 9th - 10th Standards
Need some challenging problem-solving work for your students in the following areas: Discrete, Geometry, Numbers, and Code Breaking? This is the place for an enormous database of problems aimed at high school age students. They are...