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Title: 2-D Shapes

Grade 2: Geometry and Spatial Sense-2D Shapes

Students will be able to identify and describe various 2-D shapes and sort and classify them by their geometric properties (edges, vertices, faces).

Large Group
Pairs

Introduce the lesson by asking students which shapes they know and the characteristics of that shape.
Post up the shapes that are discussed so students are able to have a concrete example.
Discuss vocabulary (faces, edges, vertices) and reinforce vocabulary when talking about the 2-D shapes.
Fill out chart with name and picture of polygon and corresponding properties)
Have students brainstorm where they may see examples of a 2-D shape (e.g. stop sign=octagon)
Have students work in pair to find examples of the shapes discussed in/around the classroom.
Have the students draw and number the faces edges and vertices of the polygons that they find on prepared worksheet. Depending on time, can take up findings as a class or have the students hand in their completed findings.





Anecdotal Assessment of comprehension as students complete the worksheet. (Since this is an introductory lesson of 2-D shapes-there is just need to check for understanding).



Have the shapes in the classroom represented by words, pictures and numbers.
Have the name of the shape written in the common languages of the students included in the classroom.
Have the students share what the shape name is in their language with the class.
Have the students create the 2-D shape using their bodies and other children in the class (depending on the properties of a given shape).




Will need:
-cut out shapes of various polygons (triangles, quadrilaterals, pentagons, hexagons, heptagons, octagons, etc.) that will be covered in the lesson.
-chart showing the number of faces, edges and vertices of each polygon in words/numbers and pictures
-markers
-pictures of common objects which have properties of the 2-D shapes being discussed
-prepared worksheet for students that includes space for them to draw a picture (about 5) and indicate numbers of vertices, edges and faces of a given shape.



Submitted by: Faizah Mitha

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