Next, students did a cut and paste activity that required them to sort tables, equations and graphs into groups of partial or direct variation. I have posted direct variation on one side of the room and partial variation on the other side. Hopefully, the movement will help students remember which side of the room they walked to when it is time for a formal assessment.
Some of the table of values were not so easy to just find if they were partial or direct because the x being equal to 0 did not appear. Students had to do some calculating to help them decide.
Then, we moved on to calculating the rule from a graph! Students were very successful at this process. We started by deciding if it was partial or direct variation, this allows students to determine if the rule would have a rate of change and an initial value or just a rate of change. Students did a great job doing this activity. Before, they left they completed an exit card that required them to connect to the steepness of a line.
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