Group items tagged

" Come up with a formula that will use the information that matters and then return a number to tell us who did the best and worst job drawing the midpoint." Interesting way to introduce midpoint and assess which formula suggested was "best." There are follow-ups with drawing the best triangle, square, and circle. (I would definitely do triangle & square - teacher's guide shows examining largest areas possible given the perimeter as the best solution!)

This is a video looking at equilateral triangles and properties of triangles 

this is for use in the melting glacier problem for AMII, how much ice needs to melt for the water levels to raise 3 feet.