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: Slide
WiskundeMiddelbare schoolhavo, vwoLeerjaar 1

This lesson contains 33 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 50 min

Items in this lesson

§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 - Slide

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 - Slide

Slide 3 - Slide


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

Slide 4 - Slide

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 - Slide

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

Slide 6 - Slide

Extending a line means: making it longer!

Slide 7 - Slide

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 - Slide

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

Slide 9 - Quiz

Slide 10 - Slide

Slide 11 - Slide

Answer this
question in 
the next slide.

Slide 12 - Slide


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

Slide 13 - Quiz

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 - Slide

The 2nd coordinate is ....

Slide 15 - Mind map

Answer:   
4  
32

Slide 16 - Slide

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

Slide 17 - Slide




What does all this mean?!

Slide 18 - Slide

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 - Slide

Slide 20 - Slide

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

Slide 21 - Slide

The 2nd coordinate is ...

Slide 22 - Mind map

Slide 23 - Slide

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 - Slide

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

Slide 25 - Quiz

Slide 26 - Slide

In the end ...
Something about §3.3!

Slide 27 - Slide

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 - Slide

Slide 29 - Slide

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 - Slide

Slide 31 - Slide


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

Slide 32 - Slide

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


Slide 33 - Slide