In the previous lesson, students used a string to compare two lengths indirectly.
In this lesson, students choose their own object to compare the length of two other objects indirectly. Throughout the lesson, students make their own choices about what objects to use and how to use them to compare two other objects (MP5). Students also have opportunities to see and compare the different choices that their peers make. These conversations help prepare students for iterating same-sized length units to measure length in future lessons.
- Choose and use objects to compare lengths of other objects indirectly.
- Let’s compare the length of objects that can’t be moved.
- Each group of 2 needs:
- Connecting cubes in singles and towers of 10
- 6-inch and 10-inch piece of string
- Unsharpened pencil
- Each group needs measuring materials from the previous activity.
|Activity 1||15 min|
|Activity 2||25 min|
|Lesson Synthesis||10 min|
Teacher Reflection Questions
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