Probability and Statistics - Week 8: Lesson 4: Geometry- Angles
Lesson Objective: Intro to Geometry. Students will learn about angles and be able to name them and identify the different types of angles.
Brainstorm: Geometry. What does that word mean?
Intro Angles:
Video to show: https://www.khanacademy.org/math/basic-geo/basic-geo-angle/angle-intro/v/angle-basics
Line: is straight (no curves), has no thickness, and extends in both directions without end (infinitely).
Line Segments: When the line has an end.
Ray: if one side of the line has an end.
Angles: the space between two intersecting lines or surfaces at or close to the point where they meet.
Types of Angles:
Go through the different types of angles and show example pictures with each one.
Acute Angle: an angle that is less than 90°
Right Angle: an angle that is 90° exactly
Obtuse Angle: an angle that is greater than 90° but less than 180°
Straight Angle: an angle that is 180° exactly
Reflex Angle: an angle that is greater than 180°
Textbook Examples:
Page 173
Q. 7
Page 175
Q. 2 & 3
Naming Angles:
Naming Angles Example: https://www.khanacademy.org/math/basic-geo/basic-geo-angle/angle-intro/v/naming-angles
Naming Angles Worksheet: https://www.mathworksheets4kids.com/angle-parts.php
Textbook Examples:
Page 174
Q. 9, 10