Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Similarity
This site contains a lesson plan for high school age students. The objective is to discover the factor of proportionality in similar polygons and to relate this factor to the perimeters and areas of similar polygons.
Better Lesson
Better Lesson: Design a Space Using Area Models Day 1 and Day 2
Third graders use area models to find the total area of a store, home, or other real world space.
Better Lesson
Better Lesson: Area Word Problems Days 1 & 2
Area word problems using a real world context pose new mathematical challenges for students to negotiate.
Better Lesson
Better Lesson: Building a Dog Kennel Day 3
Third graders will be able to use strategies to solve real-world problems involving area and perimeter.
Better Lesson
Better Lesson: Building a Dog Kennel Day 1
Third graders will be able to use strategies to solve real-world problems involving area and perimeter.