Embed Size (px)
Citation preview
Module 4 Topic B
Angle Measure and Plane Figures
REVIEW- TOPIC A
Congruent means EQUAL
Module 4 Topic B- Angel MeasurementPROTRACTOR
Make your own circular protractor
Radius: a straight line from the center to the circumference of a circle or sphere.
Lesson 5: Use a circular protractor to understand a 1-degree angle as 1 360 of a turn. Explore benchmark angles using the protractor.
Traditional Protractor
Circular Protractor
Lesson 5 Video
https://youtu.be/7_TZsyKE4pQ
Double click above link if you can't video to play
Lesson 5 Practice
• This page goes along with the video
1. Check Your Work
2. Try your skills with the interactive pages on the next slide.
Practice using a traditional protractor (interactive)
• https://www.geogebra.org/m/yHYrCwkY#material/WJY9nwYr• Go to protractor practice not random
• https://www.geogebra.org/m/yHYrCwkY#material/tRfEgHnx• Go to protractor random
• http://studyjams.scholastic.com/studyjams/jams/math/geometry/measure-angles.htm
ACCESS TO LINKS:
Double click on links OR highlight, right click, open link
Lesson 6: Use varied protractors to distinguish angle measure
from length measurement.
Lesson 6 Video
https://youtu.be/PP84Ot_wBwQ
Watch the video first, then practice on the next slide using a protractor.
Tips for Measuring angels
• Place the midpoint of the protractor on the VERTEX of the angle.
• Line up one side of the angle with the zero line of the protractor (where you see the number 0).
• Read the degrees where the other side crosses the number scale.
• Remember to identify the type of angel before measuring.
https://www.brightstorm.com/math/geometry/geometry-building-blocks/using-a-protractor/
PracticeIf you don’t have internet access, skip this activity and see next three slides. You will need a
protractor.
• https://www.khanacademy.org/math/basic-geo/basic-geo-angle/measure-angles/e/measuring_angles
• Tip:
To move the protractor in the above interactive activity- hold the green arrow (it will become slightly larger)
Practice
Check your work
Lesson 7 Measure and draw angles. Sketch given angle
measures, and verify with a protractor.
Lesson 7 Videos
https://youtu.be/icvcbAWG5qM
http://studyjams.scholastic.com/studyjams/jams/math/geometry/construct-angles.htm
Interactive Practice (if you have internet)
https://www.khanacademy.org/math/basic-geo/basic-geo-angle/measure-angles/e/drawing-angles
Practice
PracticeIf you don’t have internet
Use your protractor
Check Your Work
Lesson 8: Identify and measure angles as turns and recognize them in various contexts.
https://youtu.be/WKCIMOxuLRM
https://youtu.be/D-EIh7NJvtQ
https://youtu.be/Ttji2_wBSEo
Interactive Practice
• https://www.khanacademy.org/math/basic-geo/basic-geo-angle/angles-in-circles/a/angles-in-circles-word-problems
Practice
Check Your Work
• Congratulations, you have reached the end of this weeks lessons.
