Search
  • Search
  • My Storyboards
https://www.storyboardthat.com/lesson-plans/introducing-angles/supplementary-and-complementary
START YOUR 14 DAY FREE TRIAL NOW!
START YOUR 14 DAY FREE TRIAL NOW!

Like this lesson plan? copy it now!

copy this activity
Activity Overview
Template and Class Instructions

Activity Overview


In this activity, students will measure angles that supplementary or complementary. They are already given the measurement of the large angle (90° or 180°), and they need to find the values of the smaller angle measures. Hopefully, some students will recognize that they really only need to measure one of the angles and then subtract from the whole - or maybe you will explicitly teach that to your students. Discuss efficiency, double-checking, and problem-solving with your students to help their minds prepare to face new challenges with the knowledge they already know.

Supplementary Angles

Two angles that make a straight line together are called supplementary angles. A line, or straight angle, measures 180 degrees.


Complementary Angles

Two angles that make a right angle together are called complementary angles. A right angle measures 90 degrees.



For some students, using a protractor is extremely difficult, so they may need additional practice, modified assignments, or, most likely, both. Another way to tackle angle measures as additive is to use equations, such as 36° + h = 124°, with or without drawings. With only diagrams of angles, students can figure out how to set up an equation on their own. Without drawings, students strictly use algebra to find the value of the unknown variable rather than using a protractor to find the angle measurements. Both skills in algebra and tool manipulation are important and neither should be neglected.


Template and Class Instructions

(These instructions are completely customizable. After clicking "Copy Activity", update the instructions on the Edit Tab of the assignment.)



Student Instructions

Determine whether an angle is complementary or supplementary and measure the angles.

  1. Click "Start Assignment".
  2. Search "Math" or "Protractor" in the search bar and drag down the transparent protractor object.
  3. Measure each angle and record the measurements in the description box.

Lesson Plan Reference





Pricing for Schools & Districts

Limited Time

Introductory School Offer
Includes:
  • 1 School
  • 5 Teachers for One Year
  • 1 Hour of Virtual PD

30 Day Money Back Guarantee • New Customers Only • Full Price After Introductory Offer • Access is for 1 Calendar Year


*(This Will Start a 2-Week Free Trial - No Credit Card Needed)
https://www.storyboardthat.com/lesson-plans/introducing-angles/supplementary-and-complementary
© 2024 - Clever Prototypes, LLC - All rights reserved.
StoryboardThat is a trademark of Clever Prototypes, LLC, and Registered in U.S. Patent and Trademark Office