AmericanPi - Composite Figures Using Scale and Percents
This real world activity has students finding the area and perimeter of composite figures by addition. Students will then use this information to solve real world problems, such as the cost of paint to paint one irregular shaped wall (including a discount and tax).
It should be taught after students have already learned how to calculate percentages.
This activity includes 2 sets of multi-step composite/complex figures problems. Each set has 3 parts. They are leveled low-middle and high and are listed in that order. The lower level questions give hints or require only 1-2 steps. The composite shapes used are also less complex.
The high level has more complex, multi-step problems. Students are required to break apart multi-step problems on their own. Also, the shapes for this level or more complex, requiring the students to separate them into 3 or more smaller shapes.
You can use this activity in class to ensure your students are all covering the same concept but at their individual levels of mastery.