Noyce Foundation
Mixing Paints
Let's paint the town equal parts yellow and violet, or simply brown. Pupils calculate the amount of blue and red paint needed to make six quarts of brown paint. Individuals then explain how they determined the percentage of the brown...
Illustrative Mathematics
How Many Cells Are in the Human Body?
Investigating the large numbers of science is the task in a simple but deep activity. Given a one-sentence problem set-up and some basic assumptions, the class sets off on an open-ended investigation that really gives some context to all...
Curated OER
End of the Year Math Terms
In this end of the year math test learning exercise, 4th graders complete problems including addition, division, measurement, decimals, and more. Students complete 22 problems.
Curated OER
Solve Percent Problems Using Proportions
Students explore proportions and ratios. In this solving percent problems instructional activity, students examine percent problems including tax and percent of change.