Interactive
Shodor Education Foundation

Ordered Simple Plot

For Students 6th - 10th Standards
Open your imagination to make algebra-inspired creations. An interactive lesson has scholars graph images from a set of parameters. Users can practice minimum values, maximum values, and scale as well as key features.
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. 
Interactive
Curated OER

Four Rectangle Perimeter Problems

For Students 6th - 9th
In this perimeter activity, students find the perimeter of four rectangles.  Explanations, examples, and solutions are provided.