Interactive
Curated OER

Ratio and Proportion Crossword Puzzle

For Students 9th
In this Algebra I worksheet, 9th graders solve a crossword puzzle that is based on the vocabulary associated with ratio and proportion.  The one page interactive worksheet contains fourteen clues and is self checking. 
Lesson Plan
Math by Design

Transformations – Reflections

For Teachers 7th - 8th Standards
Scholars use interactive resources to figure out how to mathematically draw a reflection of a geometric shape viewed in a mirror. To conclude the activity, class members are asked to deduce the result of multiple reflections across...