Utah Education Network (UEN)
The Pasture and the Fence
Beginning geometers use tiles and grid paper to draw and calculate perimeter and area. Rectangles of different sizes are created and then measured to build understanding. The one-inch grid sheet referenced is attached.
Curated OER
An Introduction to Mental Models
Students discuss what mental models mean to them. In this teacher learning lesson plan, students read some articles and share what they learned with their group. They explain how mental models can help in education.