The video tutorial covers finding the area of composite figures, which are 2D shapes made up of other 2D shapes like squares and rectangles. It explains two methods: decomposing, which involves breaking down the figure into known shapes, and composing, which involves building up the figure to a known shape and subtracting parts. The focus is on decomposition, with practical examples provided to illustrate the process.

What are composite figures made of?

• Only circles

• 2D figures such as squares and rectangles

• Imaginary lines

• 3D shapes

Tags

CCSS.1.G.A.2

What does it mean to decompose a figure?

• To paint it

• To break it down into known shapes

• To multiply its dimensions

• To erase parts of it

Tags

CCSS.1.G.A.2

How do you find the area of a decomposed figure?

• By adding the areas of the decomposed shapes

• By guessing the measurements

• By dividing the figure into equal parts

• By using a ruler only

Tags

CCSS.3.MD.C.7D

What is an alternative method to decomposing figures?

• Cutting

• Drawing

• Folding

• Composing

Tags

CCSS.1.G.A.2

What shapes are useful when decomposing figures?

• Unknown shapes

• Shapes without area formulas

• Triangles and rectangles

• Invisible shapes

What is the first step in decomposing a figure to find its area?

• Calculating the perimeter

• Drawing it from memory

• Guessing the area

• Breaking it into smaller known shapes

How do you calculate the area of a rectangle within a composite figure?

• Length x Width

• Length + Width

• Base x Height

• Base + Height

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What do you do after finding the areas of all decomposed shapes?

• Subtract them

• Multiply them

• Divide them

• Add them together

Tags

CCSS.3.MD.C.7D

What is the area formula for a triangle used in the examples?

• Base x Height

• (Base x Height) / 2

• 2 x (Base + Height)

• (Base + Height) / 2

Tags

CCSS.6.G.A.1

Why might the final area calculation differ among students?

• Different decomposition methods

• Drawing the figure incorrectly

• Incorrect calculations

• Using different units