# Vertically opposite angles + angle pairs

Good morning!
Schedule:
• Learning goals
• Revision questions
• Starter
• Angle pairs
• Work
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Slide 1: Slide
WiskundeMiddelbare schoolvwoLeerjaar 2

This lesson contains 21 slides, with interactive quizzes and text slides. Lesson duration is: 60 min

## Items in this lesson

Good morning!
Schedule:
• Learning goals
• Revision questions
• Starter
• Angle pairs
• Work

#### Slide 1 -Slide

Learning goals
At the end of this lesson I can:
•  Identify the different types of angle pairs
• Find equal vertically opposite angles

A
B
C
D

A
B
C
D
E
F
G

#### Slide 4 -Drag question

If two angles are complementary and one of them is 77°, what is the size of the other angle?

#### Slide 6 -Open question

Starter
1. Find the values for x, y and z

2.
a) Identify a pair of corresponding angles
b) Identify a pair of alternate angles
c) Identify a pair of Co-interior/allied angles

#### Slide 7 -Slide

Starter
1. Find the values for x, y and z
x = 90°          y = 50°        z = 40°

2.
a) Identify a pair of corresponding angles
A and E        B and F        C and G         D and H
b) Identify a pair of alternate angles
C and F         D and E
c) Identify a pair of Co-interior/allied angles
C and E         D and F

#### Slide 8 -Slide

Angle Pairs
Angles in an F-shape are
Corresponding angles
Angles in an U-shape are
Co-interior angles
Angles in an N-shape are
Alternate angles

#### Slide 9 -Slide

Angle Pairs
Angles in an F-shape are
Corresponding angles

#### Slide 10 -Slide

Angle Pairs
Angles in an U-shape are
Co-interior angles
Or same-side interior

You also have Co-exterior
Or same-side exterior

#### Slide 11 -Slide

Angle Pairs
Angles in an N-shape are
Alternate angles

You have alternate interior angles
and
Alternate exterior angles

#### Slide 12 -Slide

What to do

- I really want a challenge                                                  Do the Pink work on LessonUP

- I understand it, but I think a                                           Do the Blue work on LessonUp
bit more practice will help me

- I think more practice will help me,                             Work with the board
and would like to do more board work

#### Slide 13 -Slide

Angle Pairs
Vertically opposite angles are formed when two lines intersect (forming an X-shape).

Vertically opposite angles are ALWAYS equal to each other

#### Slide 14 -Slide

Angle Pairs
Vertically opposite angles are formed when two lines intersect (forming an X-shape).

Vertically opposite angles are ALWAYS equal to each other

Angle pairs

#### Slide 16 -Slide

Let's get to work!
p. 54: 3E                 1, 2
P. 56: 3F                  2, 4, 6
p. 54: 3E                 2, 3
p. 57: 3F                  2, 4, 6, 7, 8
p. 54: 3E                 2, 3
p. 57: 3F                 2, 4, 6, 7, 8
ManageBac > Files > Unit4 >  Find the angles Challenge

#### Slide 17 -Slide

Matching race
How fast can you match the vocabulary with correct pictures?
https://www.educaplay.com/learning-resources/4083295-angle_pairs.html

#### Slide 18 -Slide

Name angles
Write your name with straight lines only
Identify (with the correct symbols):
- parallel lines
- perpendicular lines
- corresponding angles
- alternate angles
- co-interior angles
- co-exterior angles

#### Slide 19 -Slide

Dance, Dance, Angles
You need 4 people in a group:
- A performer
- A timer
- A counter

Tape 3 lines on the floor in a way that it resembles an H shape
The reader will read an angle pair from a list which the performer will have to show by stepping on angles in the tape. (within 30 sec)
When the 30 sec are up, the reader will read the next angle pair.
The counter will count how many angle pair the performer gets right.

#### Slide 20 -Slide

Homework

BRING A COMPASS AND A RULER