Introduction
Description: In this WebQuest, you are going to learn similar polygons (same shape polygons with different sizes). When given 2 ploygons, you will be able to compare angles for congruency and calculate the proportions between corresponding sizes.
Grade Level: 9-12
CCSS: G.SRT.5
Definitions:
Proportions:
Relationship between two things when the quantities of the two are equal in ratios.
Scale Factor:
The ratio of the corresponding sides of two similar polygons.
Similar Polygons
Two polygons are similar if and only if their corresponding angles are congruent and the measures of their corresponding sides are proportional.
Why it is Important?
You can use similar polygons to solve problems involving cartography, gardening, and construction work.
What will You Learn?
To identify similar figures, and to solve problems involving similar figures.
Task
Task 1-4: Understanding Proportions and Similar Polygons
Students will be able to use and write proportions. Students will be able to identify and solve similar polygons.
Task 5: Using Similar Polygons
Students will be able to identify and solve similar polygons.
Task 6: Using Proportions
Students will play the millionaire game to practice solving proportions.
Task 7: Using Proportions
Students will play a racing game to practice solving proportions.
Task 8: Practice
IXL Practice finding the missing lengths.
Task 9: QUIZ Proportions and Similar Figures
Process
TASk 1: Proportions
TASK 2: Similar Triangles
TASK 3: Similar Polygons
Task 4: Find Missing Sides
TASK 5: Similar and Congruent
TASK 6: Rags to Riches
TASK 7: Dirt Bike
TASK 8: Practice
Task 9: QUIZ
Write the problem and the answer on a separate sheet of paper.
Conclusion
“You must say it...You must not stop now...”
Now that you are more than ready to move on, apply what you have learned to your homework!