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K-GM-1-3

Page history last edited by Tashe Harris 6 years, 2 months ago

K.GM.1.3 Identify attributes of two-dimensional shapes using informal and formal geometric language interchangeably.

In a Nutshell

Kindergarten students need multiple exposures to two-dimensional shapes in different sizes and orientations. Once students are able to fluently identify two-dimensional shapes by name, they will begin to use informal and formal language to describe their similarities, differences, parts (ex: number of sides and vertices/“corners”) and other attributes (ex: having sides of equal or different length).

Student Actions	Teacher Actions
Develop mathematical reasoning by sorting two-dimensional shapes by their attributes. Communicate mathematically by engaging in discussions about the similarities and differences of two-dimensional shapes.	Focus student learning by providing opportunities to see shapes in a variety of sizes and orientations. Pose purposeful questions to encourage students to communicate their thinking and reasoning. Implement tasks through play that promote geometric vocabulary.
Key Understandings	Misconceptions
Attributes of two-dimensional shapes. Communicate using formal and informal geometric language.	Only recognizing a shape if it is oriented a certain way.