Illustrative Mathematics is a free resource for K-12 mathematics teachers. On Illustrative Mathematics teachers can find lesson activities aligned to standards for every grade level. When it is appropriate the activities include drawings and diagrams.

Anyone can access the activities posted on Illustrative Mathematics. You can rate activities and share your own activities if you register for an Illustrative Mathematics account.

Applications for Education
Sites like Illustrative Mathematics can be helpful for new teachers who are looking for lesson ideas. Likewise, Illustrative Mathematics could be helpful for experienced teachers exploring new ideas for teaching what they have taught for years.