Illustrative Mathematics
Size Shuffle
In the eyes of children the world is a simple place, objects are either big or small. This simple activity aims to expand the comparison language of young mathematicians as they use the words taller and shorter to compare their height...
Curated OER
Star Wars: Rays and Angles Edition
Rays and angles and Star Wars? It sounds strange, but it's actually a fun game to help fourth graders get good at measuring and identifying angles and rays with a protractor. Each pair of children chooses which Star Wars character they'd...
Curated OER
My Number Book
Use six pre-printed pages to help kindergartners make their own numbers workbook. For each page, they practice identifying the assigned number by circling it where ever it appears on the page. Then they practice tracing it three times...
Curated OER
Tallies Tell It All
Students explore data collection through the use of tally marks. After a demonstration of the use of tally marks students complete various inquires where they create a chart documenting the number of times a desired result happens. They...
Curated OER
Multiple Patterns
Second graders utilize a 1-100 grid to identify multiples of single digit numbers. They look for patterns and how they could be used to identify multiples to demonstrate the ability to use the multiplication facts and charts of single...
Curated OER
Prime and Composite Numbers
Fifth graders use prime factorization to identify prime and composite numbers. They use cubes to find factors. In groups, 5th graders draw rectangular arrays to discover prime numbers under 100.
Curated OER
Finding The Circumference Given The Radius
Students develop an understanding of pi and the relationship between the diameter, radius and circumference. After a lecture/demo, students use construction paper and a compass to solve problems using diameter, radius and circumference.