Plotting Points

Grade 9s have been working on introductory skills, and today we looked at plotting points and determining composite perimeter and area.

Groups were given a list of points to plot. Each set made a composite shape made up of rectangles.

They worked well together and remembered how to plot positive and negative values, and then cut up the region to calculate the area. They know the perimeter is the outside edges.

Our next task was to plot points from a table of values

We each chose different side lengths for squares and calculated the perimeter and area and kept the values in the table. We made graphs of the tables and saw that the perimeter data is linear and the area data is non linear.