3Thavo Ch 7 REFRESH

This lesson is about:
Ch 7 Types of relations,
REFRESH, p.244/245

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Slide 1: Tekstslide
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In deze les zitten 24 slides, met interactieve quizzen en tekstslides.

time-iconLesduur is: 50 min

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This lesson is about:
Ch 7 Types of relations,
REFRESH, p.244/245

Slide 1 - Tekstslide

Open your textbook on p.244/245 and write down:
'Ch 7 Types of relations
R1 a                    3q - 12 = 24'
Then solve this equation, step by step!

Slide 2 - Tekstslide

The answer to
R1a 3q - 12 = 24 is
A
q = 4
B
q = -4
C
q = 12
D
q = -12

Slide 3 - Quizvraag

Solution:
Compare the following solution, then correct if needed!
R1a   3q - 12 = 24
3q = 36
q = 12

Slide 4 - Tekstslide

Let's read 'Theory', p.244 together.
The good old lollypopsticks will decide who is going to read this aloud!

Slide 5 - Tekstslide

Do R2 a yourself now:
Write down in your Notebook why you think there is (no) linear relation!
timer
2:00

Slide 6 - Tekstslide

The answer to R2a is:
A
No, because the steps in the top row are not +1.
B
No, because there is no 0 in the top row.
C
Yes, because on top it goes +3 and in the bottom it goes +8.
D
Yes, because it is a rising line.

Slide 7 - Quizvraag

Solution R2a:
The increase in the top row is +3 all the time.
The increase in the bottom row is +8 all the time.
That means there is a linear relation.
(When you would draw its graph, you get a straight, rising line.)

Slide 8 - Tekstslide

Time to do some Homework!
Go back to R1, solving the equations. Then go to R2, etc.
But first....
See next slide.

Slide 9 - Tekstslide

Slide 10 - Tekstslide

Good luck!
Later this lesson we will continue this LessonUp.

Slide 11 - Tekstslide

A short look at:
page 245.

Slide 12 - Tekstslide

Who reads 'Theory', p.245 ?
Fate - or better: the lollipopsticks!- will decide this.

Slide 13 - Tekstslide

Slide 14 - Woordweb

Make your own:
Exponential relation - FORMULA!
timer
1:00

Slide 15 - Tekstslide

Key in your Formula!

Slide 16 - Woordweb

Theory, p.245
Your teacher will read this vital text this time.
Follow this carefully and ask a question, if it is not clear to you!

Slide 17 - Tekstslide

Let's tackle R7 now!
Do R7 for yourself, in your Notebook.
timer
2:30

Slide 18 - Tekstslide

Answer to R7a:
A
A
B
B
C
D
D
C

Slide 19 - Quizvraag

Explanation R7a:
Formula C you can also write as:
y = 10 
(because 1 to the power of whatever is still 1!),
and that corresponds to a straight horizontal line, like 3.

Slide 20 - Tekstslide

Answers to R7b:
A
A - 1, B - 2, D - 4
B
A - 2, B - 1, D - 4
C
A - 1, B - 4, D - 2
D
A - 4, B - 1, D - 2

Slide 21 - Quizvraag

Explanation R7b:
- The Graph for Formula A starts at the height of 10 and is increasing, so:   Graph 1.
- The Graph for Formula B starts at 10 too, but it is decreasing , so:
Graph 4.
- The Graph for Formula 2 starts at 3 only and it increases, so:
Graph 2.
 

Slide 22 - Tekstslide

Continue
doing the Homework:
REFRESH, p.244/245.

Slide 23 - Tekstslide

What did you learn this lesson?

Slide 24 - Woordweb