

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

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 Lesson plan   
Identify angles as right, less than a right angle or greater than right angle. 

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 Lesson plan   
Use and apply the Pythagorean theorem to find the hypotenuse and the legs of a right triangle. 

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 Activity   
Find the area of a shape on a grid by counting squares. 

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 Activity   
Calculate the area of rectangles or compound figures using side lengths. 

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 Lesson plan   
Derive the formula for the area of a circle. Find the area of a circle given the radius or diameter of a circle. 

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 Lesson plan   
Find the area of a trapezoid by using compound figures and by deriving the formula for the area of a trapezoid. Find the height given the area. 

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 Activity   
Calculate the area of parallelograms, triangles and trapezoids. 

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 Lesson plan   
Find the area of irregular figures by dividing them into familiar shapes (rectangles and triangles.) 

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 Lesson plan   
Find the areas of complex figures by dividing them into familiar shapes. Find the areas of each shape and sum to find the total area. 

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 Lesson plan   
Find the areas of complex or irregular figures by dividing them into familiar shapes. Find the areas of each shape and sum them to find the total area. 

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 Lesson plan   
Identify and extend arithmetic and geometric sequences. Find the common differences of arithmetic sequences. Find the common ratio of geometric sequences. Find the nth term of an arithmetic or geometric sequence. 

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