Area Investigation: Students can either use the grids on the shapes as units, or they can use rulers to measure the dimensions. After students complete the foldable, discuss the process of finding the area of the two triangles. Have students create a formula based on their process. Then write down the formulas on the Interactive Notebook Area Flaps.
BINGO: Hand out blank BINGO cards, and the bingo card filler. Have students fill out their bingo cards with dimensions and shapes. Call out the areas at random, and check them off as you go on the Teacher Calling Card.
Exit Tickets: Students can either use the grids on the shapes as units, or they can use rulers to measure the dimensions. Students can shade in the stop light in the bottom right corner as a self-assessment.
Homework: The homework requires students to apply what they learned in class. An answer key is provided.