Today, I will compare the height of two objects by using a third
Vocabulary Compare the height 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. While length typically refers to a horizontal linear measure, height refers to a vertical linear measure. We would say a child is three feet tall, and a table is three feet long. In previous lessons, students were comparing length of objects horizontally. Some objects can be stood on their ends and have their heights compared vertically. This lesson requires students to transfer height in reallife to height represented in two dimensions on paper. Students may need additional time comparing heights of real-life objects. Use classroom objects (table, desk, chair, cabinets, etc.), or outdoor objects (slide, picnic table, tree, basketball hoop, telephone poles, parking meters, etc.) to make additional comparisons.
Steps: The first flower is shorter than the flower in the box. It is the shortest. The last flower is taller than the flower in the box. It is the tallest.
1. Line up 3 objects, from the shortest to the tallest, standing them on their ends on a flat surface. 2. Compare the height of two of the objects by using a third object.
Application of MPs: MP1:
How can you explain your work?
MP6: How can you use math vocabulary in your explanation? MP7: What steps help you solve the problems?
1. Find something in the classroom that is taller than this bottle. Find something that is shorter than this bottle.
A
is taller than the bottle.
A
is shorter than the bottle.
2. Find something in your desk that is taller than this arrow. Find something else that is shorter than this arrow.
A
is taller than the arrow.
A
is shorter than the arrow.
*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: How can you explain your work? MP6: How can you use math vocabulary in your explanation? MP7: What steps helped you solve the problems?
Directions: Compare the height of two objects by using a third object.
4. Look at the water bottle in the box. Circle the water bottle that is shorter than the one in the box.
A
B
5. Is spray bottle A shorter than the spray bottle in the box? If not, circle the spray bottle that is shorter than the one in the box.
YES
A
NO
B
6. Find something that is taller than you. Find something else that is shorter than you. Write the name of the objects that are taller and shorter than you.