Unit Plan
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Proportionality

For Students 9th - 10th Standards
Acquire a deeper understanding of the concept of proportionality. Concise definitions, detailed examples, and an interactive worksheet to apply what you have learned.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Ratio, Proportion, and Variation

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Understand direct and inverse variation.