Lesson Plan Industry Sector
Engineering & Architecture

Lesson Plan Originally Created By: Chris Sarenana

Measurements on the Architect Scale

Part of Unit: Measurements

Lesson Plan Overview / Details

In this lesson, students will use the various faces located on the Architect scale. With guided practice students will learn to do conversions related to Architecture and Engineering drawings. Because the word SCALE has more than one meaning students will also learn how it relates to various model sizes.

This lesson was created with the teacher fully understanding the different faces located on the architect scale.

Lesson Time

Architect Scale/Model Scales
110 Minutes

Objectives and Goals

  • All students will understand the measuring system using the Architect scale and how it applies to architect or engineering drawings. Students will also understand how the different scales are used to communicate design drawings from architects to city planners and contractors.
  • Students will also understand how the word SCALE has more than one meaning. Toys and models also have scales that relate to the real objects being modeled.

Activities in this Lesson

  • Students should have a general knowledge in the use of standard measurements (sixteenths of an inch). In this lesson the students will be given worksheets and an architect scale. A video will be shown to introduce the various scales located on the architect scale. The different scales that will be covered on the  video will include 3/8", 1 1/2", 1/8" and 3/4" scale. 

    A scale is a measuring device, but also refers to the size of the object to be drawn. Because each face has different measuring graduations, the teacher will pause and create an answer question session to check for understanding. Materials will included a pencil and 3 worksheets with an architect scale. The teacher will decide the number of worksheets required for the day and follow-up the next day to review the material covered.

    Students (Sht. 1 Architect's Scale) will measure the lines using the Architect's scale with the scale specified and will also include writing out the measurement with guidelines.

    Students (Sht 2 Figures) will measure each figure using the proper face on the Architect scale.

    Students (sht 3 Unit B-6) will measure lines A through F using the specified scale in each column.

    Resources and Materials

    • Architect Scale Worksheet 1 [ Download ] Student Worksheet 1
    • Architect Scale Worksheet 2 [ Download ] Student Worksheet 2
    • Architect Scale Worksheet 3 [ Download ] Student Worksheet 3
    • Architect Scale [ Watch Video ] [ Download Original Video ] Video showing the various faces on the Architect Scale
  • In this activity students will also understand that the term "SCALE" has a dual meaning in drafting. Scale refers to the ratio of the linear size of the model to the size of the real object being modeled.

    Two resource pages were added to review and help in understanding the various scales used with models and toys. A problem based worksheet is also provided to help students understand scale factors and define ratio of a model size relative to the actual object that the model represents.

    Teacher will show videos of RC models and pictures showing toys that are scaled. Teacher will also tap into prior knowledge in understanding that models and toys have different scales in relation to the real object being modeled. Showing examples of different models will help in understanding

    A worksheet with a simplified model of a roller coaster that students will draw to scale as shown on example. The scales used will be 1/16 and 1/64.  

     The teacher will explain how engineers frequently use scale models to test concepts and assist in designing toys. Understand that key parts to every scale drawing is the scale factor and the degree to which scale models has been reduced in size, compared to the original.

    Resources and Materials


Assessment Types:
Demonstrations, Surveys, Observations, Student Worksheets
  • After this lesson students will know the various faces used on the architect scale and how they relate to design drawings.
  • Also student will understand scales that are used to create toys and or models of the real object being modeled.
  • Because engineers frequently use scaled models to test a concept without wasting costly resources. Two problem base worksheets is used to help students understand the various scales used to create models.
  • Ask students to write in anything they have learned or questions they may have during the model scaling activity.