Proportion Lesson Plan

Instructor: Dana Dance-Schissel

Dana teaches social sciences at the college level and English and psychology at the high school level. She has master's degrees in applied, clinical and community psychology.

Want to have some fun teaching your students about proportion? In this lesson plan, you'll find a video lesson that provides a solid background and walks students through some introductory problems and an activity that uses classroom characteristics to provide practice in calculating proportion.

Learning Objectives

Upon completion of this lesson, students will be able to:

  • define 'proportion'
  • distinguish between proportion, ratio, and percentage
  • calculate proportions


45 minutes to 1 hour

Curriculum Standards


Recognize and represent proportional relationships between quantities.


Decide whether two quantities are in a proportional relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin.


Identify the constant of proportionality (unit rate) in tables, graphs, equations, diagrams, and verbal descriptions of proportional relationships.


Represent proportional relationships by equations. For example, if total cost t is proportional to the number n of items purchased at a constant price p, the relationship between the total cost and the number of items can be expressed as t = pn.


  • A worksheet created using the quiz associated with the lesson
  • White drawing paper


  • Begin by writing the following word problem on the board: 'If it takes one pound of beef to make four hamburgers, how much beef would we need to make 500 hamburgers?'
  • Ask the students to use a sheet of paper to try to solve the problem.
  • When everyone has finished, have them take turns sharing their work with the class, writing their calculations on the board for all to see.
  • When everyone has finished sharing their answers, play the video lesson Proportion: Definition, Application & Examples, pausing at 1:31.
  • Now have the students raise their hands if they reached the correct answer in their calculations. For those who did not, have them rework the problem now according to the information provided in the lesson.
  • Play the video lesson again and pause at 1:48.
  • Have them solve the problems on their papers. Have the class share their answers before moving on.
  • Play the video lesson and pause it at 2:47.
  • How many students correctly solved the problem presented in the lesson? For those who did not, give them time to do so now according to what they learned in the lesson.
  • Play the video lesson. Pause it at 3:10.
  • Instruct the class to solve the problem presented in the lesson. When everyone is finished, have them share their answers for a brief class discussion.
  • Play the video lesson, pausing this time at 4:20.
  • How many students were correct in their calculations? Give those who were not a moment to correct their papers.
  • Play the video lesson and pause it at 4:30.
  • Ask the class to solve the problem presented in the lesson.
  • Play the rest of the video lesson for the class now.
  • Who was correct? For those who were not, give them a chance to rework the problem now.
  • Pass out the worksheet to the class now and have them complete it.
  • Now go through each question and answer on the worksheet as a class before moving on.

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