Some points are on the line and others are not—help your pupils determine which is which. A video lesson presents an equation in slope-intercept form and a set of points to test. The narrator shows how to substitute the ordered pair to determine if it is on the line. 

Concepts

ordered pairs, coordinate pair, graphing linear equations, graphing equations, coordinate plane, substitution

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Additional Tags

math

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Instructional Ideas

• Have learners graph the points first to use as a visual when comparing the ordered pairs to the equation
• Follow the video lesson with board work practice as a quick understanding check

Classroom Considerations

• Expects proficiency with substituting and evaluating expressions

• This video is hosted on YouTube

Pros

• Answers each problem with a complete sentence
• Uses color to emphasize each step

Cons

• None

Common Core

SL.8.2 SL.9-10.2 RST.6-8.7 RST.9-10.7