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Algebra I

Activity:

Math Man On The Slopes

Posted on Jan 8, 2009

Topic: Linear Functions & Equations

In this activity, students will practice identifying slopes with informal pictures, and can self-check their understanding with one of the measurement tools. The students will also identify the slope and intercept of a given graph and will choose the correct equation in a multiple choice format.

State Standards Alignment

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Activity Key Steps:

In this short Algebra 1 activity, students will visually estimate slope. First, they will connect slope to a man skiing down a hill reinforcing the difference between positive, negative, and zero slope. Then students are given a formation of the big dipper, which has different slopes. They are to drag the slope to the segment it matches, checking their answers with the Slope tool.

Students are to change a line so that it has the necessary slope. They can visually estimate the slope first, and then use the rise/run triangle to specifically place the point. The teacher should follow up with a discussion on y-intercept and the equation of a line in slope-intercept form.

Students will asses their understanding of slope and y-intercept using interactive sliders that can change each property of line. They will be able to use this page in the TI-Nspire document to help answer self-check multiple choice questions.