Lesson 15 Length Measurements

    • Let’s solve problems about distances and lengths.

Warm-up Which One Doesn’t Belong: Measurements

Which one doesn’t belong?

  1. 3 feet

  2. yards

  3. inches

  4. yard

Activity 1 Frisbee Throws

image of a student throwing a frisbee

Six students were throwing frisbees on field day. Here is some information about each person’s first throw.

  • Elena’s frisbee went 3 times as far as Clare’s did.

  • Andre’s frisbee went 4 times as far as Tyler’s did.

  1. Complete the table with Elena and Tyler’s distances. Explain or show your reasoning.

     student

    distance

    Han

    yards

    Lin

    feet

    Clare

    feet

    Andre

    yards  feet

    Elena

    Tyler

  2. Who are the top 3 throwers for that round?

    Find out by listing the students and their distances in feet and in order, from longest to shortest.

    rank

       student 

    distance (feet)

Activity 2 Stone Towers

While on an outing, a group of friends had a stone-stacking contest to see who could build the tallest stone tower.

  • Andre’s stone tower is 3 times as tall as Diego’s, but Diego didn’t build the shortest tower.

  • The tallest tower is 4 feet and 2 inches tall and belongs to Tyler.

  • One person built a tower that is 39 inches tall.

  • Tyler’s tower is 5 times as tall as the shortest tower.

  1. How tall is each person’s stone tower? Be prepared to explain or show your reasoning.

      person 

    tower height (inches)

    Andre

    Tyler

    Clare

    Diego

  2. Elena came along and built a tower that is 5 times as tall as Diego’s tower. Is Elena’s tower more than 6 feet? Show your reasoning.

Practice Problem

Problem 1

Diego saw a snake that is 9 inches long at the pet store. The world’s longest snake, a python, is 10 yards long. How many times longer is the python than the snake Diego saw? Explain or show your reasoning.