Activity Detail
If you are using a TI-73, TI-83, TI-84 or TI-89, there may be particular math or science applications you will need to download to use certain activities. If you are using TI-Nspire technology, please update your TI-Nspire handheld operating system or computer software to view the latest activities. The latest TI-Nspire operating system was released in June 2009.
Browse by Subject Submit Activity Saved Activities Advanced Search
  


add to saved activities



print this activity
 
Proportional Flag
 


Activity Overview

Students will use the concepts of similarity to create a scale drawing of the national flag, that is large enough to cover most of a football field.

Before the Activity

  • See the attached PDF file for detailed instructions for this activity
  • Print pages 80 - 86 from the attached PDF file for your class

    		•

    		During the Activity

    		Distribute the pages to the class.

    Follow the activity procedures:

  • Understand that similar figures have proportional dimensions, and figures with proportional dimensions are similar
  • Analyze and record the dimensions of the flag and the football field
  • Study and record the length to width ratio of the flag and the field
  • Enter the ratios as fractions in the calculator
  • Check if the fractions are in their simplest terms, and if they are equal
  • Decide whether the flag and the field are similar figures
  • Draw a scale model of the football field flag
  • Label the length and width of each section of the flag, including the diameter of one star

    		After the Activity

    		Students calculate the amount of fabric that will be needed to create the flag.

  • Review student results
  • As a class, look at the diagrams presented and note any similarities and differences
  • Re-teach concepts as necessary

    		Other Downloads




    view standards alignment
    view textbook alignment

    Subject Area:
    Math : Geometry : Similarity

    Author:
    Texas Instruments

    Level:
    5-8

    Activity Time:
    60 Minutes

    Device:
    TI-15 Explorer™

    Apps:
     

    Software:
     

    Accessories:
     

    Other:
    This is Activity 12 from the EXPLORATIONS Book:
    Developing Problem-Solving Skills with the TI-15

    The following materials are required for this activity:

  • Toy truck or car with scale indicated
  • Color tiles
  • Paper and pencils
  • Chart paper and markers


    • Report an issue with this activity