We started class off with a review and extension of Friday's lesson. Students were asked to find the area of the wall that needs to be painted (windows and the door did not need to be painted!). Most students chose to find the area of the whole wall (12 x 8 = 96) and then subtract the windows (2 x 2 = 4, then there are 2 total, for 8) and the door (3 x 6 = 18). The total area was 70ft2.
Then we continued on with an investigation of trapezoids for our TRAPEZOID TUESDAY! :)
Looking at a trapezoid, students came up with the idea that we could divide the trapezoid into two triangles and then add the areas of the triangles. We also came up with the formula of (b + B) x h and then divide by 2.
There will be an area quiz on Thursday!
