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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
Wiskunde
Middelbare school
havo, vwo
Leerjaar 1
This lesson contains
28 slides
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interactive quizzes
and
text slides
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Lesson duration is:
50 min
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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 - 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
This exercise we will go through, together.
it's not that simple.
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 even made longer!)
Slide 5 - Slide
Question:
Discuss with your neighbour:
What do you have
to do for this Task?
Slide 6 - Slide
Slide 7 - Slide
Discuss with your neighbour.
Try to agree on it!
Then one of you keys 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
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 11 - Slide
The 2nd coordinate is ....
Slide 12 - Mind map
Answer:
4
3
2
Slide 13 - Slide
Before looking at the outcome, let's first
watch the DIRECTION of the LINE
through R and S closely!
See next slide.
Slide 14 - Slide
What does all this mean?!
Slide 15 - 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.
3
2
Slide 16 - Slide
Slide 17 - Slide
ANS
Again answer with
a whole number plus a fraction!
timer
0:45
Slide 18 - Slide
The 2nd coordinate is ...
Slide 19 - Mind map
Slide 20 - 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 21 - Slide
??
A
yes, it does
B
no, it doesn't
Slide 22 - Quiz
Slide 23 - Slide
In the end ...
Something about §3.3!
Slide 24 - Slide
It's handy to know this:
+ emptying a sink = legen van een wastafel (exercise 15)
+ relation, variables and units ..... look this up in the
Theory on p.98!
+ a steep descent - een steile afdaling (exercise 17)
+ of course you DRAW THE GRAPHS WITH A GEO TRIANGLE AND A PENCIL !
For drawing NEVER USE A PEN.
Slide 25 - Slide
Slide 26 - Slide
Slide 27 - Slide
Homework time.
Do §3.3 Reading graphs,
Correct your work with the Solutionsbook,
make pictures and send them in in Google Classroom!
Slide 28 - Slide
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