Hi from Vermont
I agree Declan, math models pretend to emulate natural phenomenae, or more precisely, what science knows about nature. Maths are already present in your biology experiments, kids learn to measure, count, collect data, I see you have reserved room for math connections, so next natural step is analysing collected data in order to discover patterns; simplified math models can be developed which can be used to predict future events. Let's make kids think as scientists =). Love the idea, no doubts we should work on it.