Lesson 2 Compare the Length of Objects Indirectly
Let’s compare 2 objects using a third object.
Warm-up Number Talk: Add within 100
Find the value of each expression mentally.
Activity 1 Which is Longer? Which is Shorter?
Find 2 objects that are longer and 2 objects that are shorter than the unsharpened pencil.
Write a sentence that compares each object to the pencil.
Example: The bulletin board is longer than the pencil.
Activity 2 Measure Your Desk
Compare the length of the side of your desk and the length of one of the legs of your desk using the string.
Use a drawing or words to explain how you know which is longer.
Compare the length of the top and side of your workbook.
Use a drawing or words to show which is longer.