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Area of Polygons (Grade 6)





 

Videos and lessons to help Grade 6 students learn how to find the area of right triangles, other triangles, special quadrilaterals, and polygons by composing into rectangles or decomposing into triangles and other shapes; apply these techniques in the context of solving real-world and mathematical problems.

Common Core: 6.G.1

Suggested Learning Targets

  • I can find the area of triangles and other polygons.
  • I can decompose polygons to find the area of a polygon.
  • I can decompose polygons to solve real world problems.
  • I can recognize and know how to compose and decompose polygons into triangles and rectangles.
  • I can compare the area of a triangle to the area of the composed rectangle.
  • I can apply the techniques of composing and/or decomposing to find the area of triangles, special quadrilaterals and polygons to solve mathematical and real world problems.
  • I can discuss, develop and justify formulas for triangles and parallelograms (6th grade introduction).

Related Topics:
Common Core for Grade 6

More Lessons for Grade 6





Find the area of triangles, quadtrilaterals, and polygons by composing rectangles (6.G.1)
In these lessons you will learn how to find the area of a parallelogram by decomposing into a rectangle.


Find the area of triangles, quadtrilaterals, and polygons by composing rectangles (6.G.1)
In this lesson you will learn how to find the area of non-right triangles by composing a parallelogram.



 

Find the area of triangles, quadtrilaterals, and polygons by composing rectangles (6.G.1)
In this lesson you will learn how to find the area of a trapezoid by composing a parallelogram.


Find the area of triangles, quadtrilaterals, and polygons by composing rectangles (6.G.1)
In this lesson you will learn how to find the area of other polygons by decomposing into triangles, rectangles, parallelograms, and trapezoids.




6.G.1 - Area of Irregular Polygons
This video explains how to find the area of irregular polygons by following 4 simple steps:

1. Use parallel lines to find the lengths of missing sides.
2. Break the shape up into rectangles (or triangles).
3. Find the area of each smaller shape.
4. Add up the areas of each smaller shape.


Finding Area by Constructing and Deconstructing Shapes-- 6.G.1
In this video, students will learn to find the area of triangles and trapezoids using a grid. This video relates to Common Core Standard 6.G.1. Students learn to compose and decompose shapes into rectangles and triangles in order to determine the shape of triangles and trapezoids.



 

Area Formulas -- 6.G.1
In this video, students will learn to determine the area of a triangle, a parallelogram and a trapezoid using the formulas for each. This video relates to Common Core Standard 6.G.1.


Find the Area of an L-Shaped Polygon Involving Whole Numbers
This video explains how to determine the length of the missing sides of an L-shaped polygon from give information and how to determine the area of the polygon.




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