Content Area: Math

 

Index: 4.2A Grade 4 CPI 2

 

Standard: 4.2 - Geometry and Measurement

 

Strand: A - Geometric Properties

 

Cumulative Progress Indicator: 2 - The student will use properties of standard three-dimensional and two-dimensional shapes to identify, classify, and describe them.

·        Vertex, edge, face, side, angle

·        3D figures – cube, rectangular prism, sphere, cone, cylinder, and pyramid

·        2D figures – square, rectangle, circle, triangle, quadrilateral, pentagon, hexagon, octagon

·        Inclusive relationships – squares are rectangles, cubes are rectangular prisms

 

Grade: 4

 

Sample Activities:

 

·        Students make a chart or bar graph showing how many squares, rectangles, triangles, etc., they find in their classroom.

 

·        Students "walk" a shape and have other students guess the shape

 

·        Students classify shapes according to whether they contain right angles only, all angles smaller than a right angle, or at least one angle larger than a right angle.

 

·        One student thinks of a shape. The others ask questions about its properties, trying to guess it. For example, Does it have a right angle?