April 2020's GPS department provides tasks for each grade band that invite students to reason with age-appropriate number theoretic concepts.
Kelly Hagan and Cheng-Yao Lin
Kimberly M. Lilienthal
Exploring airport traffic, usage, hours of operation, and security statistics are all ways to model and bring relevance to math. Students soar while exploring the mathematics of aircraft: dimensions, cargo, fuel, and passenger capacity. Comparing two airports or aircraft would be valuable ways to extend their mathematical journey.