

 Activity   
Determine the perimeter of rectangles or compound figures using side lengths. 

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 Lesson plan   
Identify, compare, classify, and analyze attributes of two and three dimensional shapes. 

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 Lesson plan   
Identify and draw lines of symmetry in twodimensional shapes. 

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 Lesson plan   
Introduce the terms flips, slides, and turns. 

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 Activity   
Calculate the area of parallelograms, triangles and trapezoids. 

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 Activity   
Use tiling to show in a concrete case that the area of a rectangle with wholenumber side lengths a and b + c is the sum of a x b and a x c. 

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 Activity   
Practice construction by matching the correct parts with a 3d object. 

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 Lesson plan   
Graph points on a coordinate plane (first quadrant only). 

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 Lesson plan   
Classify plane figures according to types of symmetry (line, rotational). 

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 Lesson plan   
Identify, estimate, and measure the angles of plane figures using appropriate tools. 

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 Lesson plan   
Develop strategies to determine the perimeter of rectangles and plane figures. 

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 Activity   
Complete the assignments for mixed perimeter calculations. 

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 Lesson plan   
Identify geometric representations for points, lines (horizontal, vertical, diagonal), perpendicular lines, parallel lines, angles, and rays. Recognize reallife examples of point, line, perpendicular lines, and parallel lines. 

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 Activity   
Practice spatial skills by finding the correct image that is taken on a map. 

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