Video
Summary: This learning video
deals with a question of geometrical
probability. A key idea presented is
the fact that a linear equation in three
dimensions produces a plane. The video
focuses on random triangles that are
defined by their three respective angles.
These angles are chosen randomly subject
to a constraint that they must sum to
180 degrees. One class period is required
to complete this learning video, and
the only prerequisites are a familiarity
with geometry and an understanding of
the equation for a plane, which is presented
in the module. Materials needed for
this lesson include blackboard and chalk.
Optional materials include a cardboard
box and colored paper. An example of
the types of in-class activities for
between segments of the video is: Ask
six students for numbers and make those
numbers the coordinates x,y of three
points. Then have the class try to figure
out how to decide if the triangle with
those corners is acute or obtuse.
Read
Teacher's
Guide to this video
lesson (download in PDF
format)
Download
Written Transcript
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Additional
Online Resources:
|
Gilbert
Strang
