Today, I will compare the length of two objects by using a third
Vocabulary Compare the length of two objects by using a third object:
Teacher Resources Considerations: When comparing more than two objects use the suffix –est. Continue to use –er when comparing two objects. When objects have not been lined up, show students how to measure objects with their fingers.
Steps: 1. Put the objects in order from shortest to longest. 2. Compare the length of the objects using one of the three objects.
The first paintbrush is shorter than the paintbrush in the box. It is the shortest. The last paintbrush is longer than the paintbrush in the box. It is the longest.
1. Find an item in the classroom that is longer than this paintbrush. Find an item that is shorter.
A
is longer than this paintbrush.
A
is shorter than this paintbrush.
2. Take out one crayon. Find an object that is longer than the crayon, and an object that is shorter than the crayon. Find the longest and shortest objects.
*MP3: Do you agree/disagree with what said? *MP6: How do you know your answers are correct/reasonable?
Recap today’s lesson with one or more of the following MP questions: MP1: What did you do first? Why? MP6: How can you use math vocabulary in your explanation? MP7: What steps helped you solve the problems?