Unit 5, Lesson 16
Comparemos perímetros de rectángulos
Grado 4
Preparation
Lesson Narrative
This lesson reinforces students’ understanding of the relationship between the side lengths and the perimeter of a rectangle, and their ability to reason multiplicatively in a geometric context.
- Action and Expression
- MLR8
- Determine the perimeter and the side lengths of rectangles.
- Use multiplication to compare the perimeters of rectangles.
- Resolvamos problemas sobre rectángulos de diferentes tamaños.
Required Materials
Activity 1
Activity 2
Activity 3
Required Preparation
Activity 2
- Each group of 2 students needs a 12-inch chenille stem, an inch ruler, and tape.
Teacher Reflection Questions
What evidence do you have that students' ideas about perimeter shifted or broadened as a result of this lesson?
Have feedback on the curriculum?
Help us improve by sharing suggestions or reporting issues.