Illustrative Mathematics
All vs. Only Some
All shapes have certain defining attributes that set them apart from others. In order to understand this, young mathematicians look at examples and non-examples of triangles, rectangles, and squares, working as a whole class to create...
Curated OER
Sorting Data
In this sorting shapes worksheet, students categorize 10 shapes as squares or shapes in a venn diagram organizer by writing the shapes corresponding number in the correct position on the graphic organizer.