I am struggling to write a geometry unit for gr. 3. There are only 2 standards and the first is broad. Children need to be able to understand that “shapes may share attributes, and that the shared attributes can define a larger category.”
MCC3G.1
Is there a listing of attributes/vocabulary (with definitions) that third graders are expected to know? Do they need to know the terms vertex or angle, parallel, right angle, ray, line, etc.?