

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

More info 


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

More info 


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

More info 


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

More info 


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

More info 


 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. 

More info 


 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. 

More info 


 Activity   
Calculate the area of parallelograms, triangles and trapezoids. 

More info 


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

More info 


 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. 

More info 


 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. 

More info 