Writing+Equations+by+determining+slope+and+y+intercept

=Writing Equations by determining slope and y intercept=

Created by Kristen Zorica (found on NCTM message board) In this activity students create paper chains of a particular pattern using 1x9 inch strips of colored paper. Students then use the location of the green links in the chain to create ordered pairs and then find the linear equation represented by the paper chain. For example, if the first link is red, the second link white, and the third link green, the ordered pair (# of green links, # of total links) would be (1,3). When the pattern is repeated, the next ordered pair is (2, 6)

Idea from "[|The Geometry Teacher Blog]"It goes like this. First, create an image on a piece of graph paper. Whatever you want. Could be your name or a picture or whatever. But there are conditions. It must include at least 10 line segments. Endpoints must have integer coordinates. It must have one pair of parallel lines. It must have at least one pair of perpendicular lines. After the pictures were drawn and colored, then the students picked 10 line segments and found coordinates of the endpoints, slope, function rules in standard and slope-intercept form.

-short activity to help students determine hoe to write an equation given 2 points.



- These are not word problems...just basic cards given slope/intercept, slope/point, or two points. I cut them out and have students work in groups on a dry erase board to write equations. Makes for a low pressure fun but slightly competitive activity.

- Extension activity