Area is a two-dimensional measurement for a two-dimensional figure. The introduction of area expands on the idea of the one-dimensional measurement of length, but instead of staying one-dimensional, it goes in two directions. The video introduces the area formula for rectangles and explains the formula for triangles.

Concepts

area, area formulas, area of rectangles, area of squares, square units, area of triangles

Show More Show Less

Additional Tags

math

Show More Show Less

Instructional Ideas

• Lead a discussion on why the formula for area of a triangle works even if it is not half of a rectangle
• For higher level grades, supply problems where the area is known but the class must figure out a missing measurement

Classroom Considerations

• The class should be comfortable with multiplication

• This video is hosted on YouTube

Pros

• Provides a graphical explanation of the area of a triangle
• The last part of the resource is a review of what the narrator presented

Cons

• None

Common Core

SL.6.2 3.MD.C.5.a 3.MD.C.7.b 4.MD.A.3 6.G.A.1 RST.6-8.9 MP2 MP5 MP6