1TH/Vwo §3.3 Reading graphs

§3.3 Reading graphs
This paragraph is not that difficult (I think!).
It also doesn't ask that much time from you.
However, §3.2 Working with coordinates,
wasn't that simple!
A good Refresh on this follows now!

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Slide 1: Tekstslide
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In deze les zitten 33 slides, met interactieve quizzen en tekstslides.

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§3.3 Reading graphs
This paragraph is not that difficult (I think!).
It also doesn't ask that much time from you.
However, §3.2 Working with coordinates,
wasn't that simple!
A good Refresh on this follows now!

Slide 1 - Tekstslide

That is why .....
 we first look closely at a pretty difficult exercise  

It's very understandable if you did not understand all of it, yet.
 So this is your big chance to catch up!

Slide 2 - Tekstslide

Slide 3 - Tekstslide


Part of this exercise we will do together, now.
So, pay attention well!
 

Slide 4 - Tekstslide

What the writer of the book forgot to mention is what we call the x-axis and the y-axis!
Here it comes:    
(the axes are made longer and they
contain negative numbers too!)      

Slide 5 - Tekstslide

Question:
Discuss with your neighbour:
What do you have 
to do for this Task?

Slide 6 - Tekstslide

Extending a line means: making it longer!

Slide 7 - Tekstslide

Discuss with your neighbour, again
using the sayings in red.        
Try to agree on it!
Then you key in your answer.
Answer this in the Next Slide.
From now on we call this: ANS !
timer
0:45

Slide 8 - Tekstslide

The right point is:
A
(0, 10)
B
(0, 5)
C
(5, 0)
D
(10, 0)

Slide 9 - Quizvraag

Slide 10 - Tekstslide

Slide 11 - Tekstslide

Answer this
question in 
the next slide.

Slide 12 - Tekstslide


A
(0, 31)
B
(31, 0)

Slide 13 - Quizvraag

On line RS there is a point that has a first coordinate of 4.
Task: Calculate the 2nd coordinate. Give your answer as a whole number plus a fraction!
ANS !
timer
0:45

Slide 14 - Tekstslide

The 2nd coordinate is ....

Slide 15 - Woordweb

Answer:   
4  
32

Slide 16 - Tekstslide

Before looking at the outcome, let's first 
watch the DIRECTION of the LINE 
through R and S closely!
See next slide.

Slide 17 - Tekstslide




What does all this mean?!

Slide 18 - Tekstslide

What does this scheme mean? This:
Watch the ARROWS, that mean moving to the right or up.
+  Going 3 grids to the right, means going up 2 grids, so
+  Going only 1 grid to the right means  going up           grids.
+  Next slide shows how to use this at 10c.
32

Slide 19 - Tekstslide

Slide 20 - Tekstslide

ANS 
Again answer with 
a whole number plus a fraction!
timer
0:45

Slide 21 - Tekstslide

The 2nd coordinate is ...

Slide 22 - Woordweb

Slide 23 - Tekstslide

The same kind of task as before!
IN PAIRS:
- Check this by a calculation.
- Try to agree on it.
- One of you answers in the next slide!

timer
0:45

Slide 24 - Tekstslide

??
A
yes, it does
B
no, it doesn't

Slide 25 - Quizvraag

Slide 26 - Tekstslide

In the end ...
Something about §3.3!

Slide 27 - Tekstslide

COPY IN YOUR NOTEBOOK (1):
1.   emptying a sink = legen van een wastafel (exercise 15)
2.  a steeply rising path (exercise 17) - een pad dat steil omhoog gaat
3.  a steep descent - een steile afdaling (exercise 17)



   


Slide 28 - Tekstslide

Slide 29 - Tekstslide

Copy in your Notebook (2):
COPY this:
4. relation - verband
5. variable - variabele, bijv. tijd of hoogte
6. unit - eenheid, bijv. seconden of meters
7. the average speed - de gemiddelde snelheid

Slide 30 - Tekstslide

Slide 31 - Tekstslide


The 'relation' between time and ice means 
the connection ( verband ) between time and ice. 

Slide 32 - Tekstslide

Homework time.
Do §3.3 Reading graphs,
Correct your work with the Solutionsbook.


Slide 33 - Tekstslide