Parallellogram & corresponding/alternate angles (t1b)

More angles & parallellograms




March 29th, 2021
t1b
12:25
Cameras ON
1 / 30
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Slide 1: Tekstslide
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In deze les zitten 30 slides, met interactieve quizzen en tekstslides.

time-iconLesduur is: 60 min

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More angles & parallellograms




March 29th, 2021
t1b
12:25
Cameras ON

Slide 1 - Tekstslide

Schedule
  • Programme                                                                     5 min
  • Test ch.5-6 answers                                                  15 min
  • Review: homework  (choice)                                 10 min
  • Parallellograms
     Corresponding/alternate angles
                            15 min
  • Practice exercise                                                       15 min
     
    Discuss exercise

Slide 2 - Tekstslide

Test ch.5-6

Slide 3 - Tekstslide

Choice
  • Take a look at the homework in your notebook
  • Think about which exercise you would like to see answered correctly
  • Make a choice when the poll comes up

Options:
23, 26, 32, 33 or 34

Slide 4 - Tekstslide

Programme

Slide 5 - Tekstslide

Which exercise would you like to see?
23
26
32
33
34

Slide 6 - Poll

Slide 7 - Tekstslide

Slide 8 - Tekstslide

Slide 9 - Tekstslide

Slide 10 - Tekstslide

Slide 11 - Tekstslide

What are your thoughts now about this exercise?
I still don't really understand it
I understand the explanation, but I'm not sure I can do this kind of exercise on my own
I understand and I think I can do this kind of exercise on my own

Slide 12 - Poll

Today's
Intended Learning Outcomes

At the end of the lesson you can...
  • Use the properties of parallellograms to do calculations with angles
  • Recognize corresponding and alternate angles and use them to calculate angles

Slide 13 - Tekstslide

How would you describe a parallellogram?

Slide 14 - Open vraag

Parallellograms

Slide 15 - Tekstslide

Parallellograms

Slide 16 - Tekstslide

In parallellogram
PQRS,

Calculate
P1=100°.
R4.
A
R2=80°
B
R2=100°
C
R2=260°
D
R2=280°

Slide 17 - Quizvraag

Slide 18 - Tekstslide

Alternate angles (Z-shape)
If you have two parallel lines, and a line between them,
"The elbow crooks in a Z-shape are the same"

Slide 19 - Tekstslide

Alternate angles (Z-shape)
If you have two parallel lines, and a line between them,
"The elbow crooks in a Z-shape are the same"

Slide 20 - Tekstslide

Alternate angles (Z-shape)
If you have two parallel lines, and a line between them,
"The elbow crooks in a Z-shape are the same"

Slide 21 - Tekstslide

Find out which other angle
is also 76 degrees like
Use alternate angles (Z-shape).
A1.
A
D1
B
D4
C
C1
D
C2

Slide 22 - Quizvraag

Find out which other angle
is also 63 degrees like
Use alternate angles (Z-shape).
B1.
A
D1
B
D4
C
C1
D
C2

Slide 23 - Quizvraag

Corresponding angles (F-shape)
If you have two parallel lines, and a line between them,
"The elbow crooks in an F-shape are also the same"

Slide 24 - Tekstslide

Corresponding angles (F-shape)
If you have two parallel lines, and a line between them,
"The elbow crooks in an F-shape are also the same"

Slide 25 - Tekstslide

Find out which angle is the
same size as
Use corresponding angles
(F-shape).
A4.
A
D1
B
D4
C
C1
D
C2

Slide 26 - Quizvraag

Find out which angle is the
same size as
Use corresponding angles
(F-shape).
B2.
A
D1
B
D4
C
C1
D
C2

Slide 27 - Quizvraag

Practice
Chapter 7:
Do 39 and 41 (parallellograms)
Do 53 and 54 (alternate angles)
Do 56 and 58 (corresponding angles)
Do 59 and 61 (mix)
Do 63 ór 65 (choice)
How to write down your calculations neatly
  • Don't just start writing; look at the steps you want to take
  • Find out where you should start: use the given information
  • Write down calculations AND the rule you used each time (in brackets behind it)
  • Go on until you reach the angle that was requested

Slide 28 - Tekstslide

What did you think of this lesson?
There was too much explaining and not enough practice
The mix between explaining and practice was fine
I have another opinion that I would like to share

Slide 29 - Poll

Slide 30 - Tekstslide