Scale Drawing Lesson Plan

Instructor: Carrin Hahn

Carrin taught 3rd grade for ten years, worked as a learning specialist with K-5 students, and has a Master's degree in Elementary Education.

In this lesson, students will review scale drawing and learn the steps to be able to create scale drawings. The students will work on these drawings using the methods they learned in the lesson.

Learning Objective

In this lesson, the students will be able to

  • Understand the components of 'scale drawing'
  • Create figures or drawings using the scale factors to figure out the sizes of the objects


45-60 minutes

Curriculum Standards


Solve problems involving scale drawings of geometric figures, including computing actual lengths and areas from a scale drawing and reproducing a scale drawing at a different scale.


  • Proportional reasoning
  • Scale drawings
  • Scale factor



  • Start by giving an example from the classroom.
    • For example, 'I wanted a bulletin board that had the same dimensions as this big one, but I wanted a smaller version of it. So, I measured the board and found it was 8 feet long and 4 feet tall. I want the new bulletin board to be 2/3 that size.' Then tell the students you will use 'proportional reasoning' to help explain the math, showing the students what you do to find the measurements.
  • Pass out the copies of the lesson Scale Drawing Using Proportional Reasoning.
    • Read through each section of the lesson, stopping to show any math work on the board that will help the students understand the process. Be sure to explain the vocabulary.
  • Pass out copies of the quiz Scale Drawing Using Proportional Reasoning Quiz to practice some problems. Students may use their calculators here if allowed.


Group Practice

  • Divide the class into groups of two or three.
  • Pretend that the students will be entering a soapbox derby contest. The rules say they must make a car shaped similar to the life-size model, but they can create their own scale drawing.
  • Draw a picture on the board of the life-size model. Draw it from a bird's-eye view, and make it 6.5 feet long and 1.5 feet wide.
  • The students will have to come up with the scale factor and the measurements for the scale drawing.
  • Students should try at least three different scale factors to decide which one would be the easiest to draw on paper.
  • After the students have had some time to work, let them share their answer with the class. They should show their calculations on the board so that you can check the math.

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