Composite Figures

Sept. 4 - 7

Standard G.1

 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


Area, Edge, Face, Net, Parallelogram, Polygon, Polyhedron, Quadrilateral, Rectangular Prism, Surface Area, Trapezoid, Triangles, Vertices


Big picture

Getting Ready Activity

Create Compound Figures

1) Roll the color cube, and one number cube. The number rolled will be the quantity of the shape you must use. ex: 4 green triangles

2) Repeat step 1 three times. *roll the color cube again if you get the same color!

3) Use all of your shapes and create one composite Figure. Draw your figure on the paper.

4) Roll both number dice (add together) to get your base(s) and height.

5) Find the areas of your shapes and total area of your figure.

6) Record your information onto the activity page.

Station#1 - Compound Figures Task Cards - #05

1) Show work on paper

2) Look at the Self Check Station to check your work.

3) Make corrections if needed! (Ask for help if you are stuck or need clarification)
4) Turn into basket when completed.

Station #2 - Ten Marks - #06

Finding Area of Composite Figures

1) Work with a partner

2) Find the same question to work on together

3) Show work on paper

4) Turn into basket when completed


Extra! Extra!

Dream House

1) Directions can be found on the google document below.

2) You will draw your Dream House in a Google Draw document (already shared with you in the math classroom)

3) You will type in your dimensions in the chart (already shared with you in the math classroom)

4) Turn in both documents in google classroom when completed.

Be creative :)