The document provides learning outcomes and lesson plans for teaching geometry concepts to early elementary students using a backwards design approach. It includes identifying outcomes like sorting 3D shapes by attributes, describing 2D and 3D shapes. It discusses assessing student understanding through sorting activities and their use of geometric language. The proposed lesson has students work in groups to sort shapes according to a given rule, then draw a shape that fits the rule and write the rule. Follow up activities reinforce the concepts through discussion, modeling shapes, and relating 2D and 3D shapes.