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1TH/vwo §8.2, §8.3 and §8.4 once more.
Some more practice with §8.2, §8.3 and §8.4 !
Nothing new, this time.
This makes sense, as doing adding and subtracting with
positive and negative numbers is quite tricky!
1 / 19
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Slide 1:
Slide
Wiskunde
Middelbare school
havo, vwo
Leerjaar 1
This lesson contains
19 slides
, with
interactive quizzes
,
text slides
and
1 video
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Lesson duration is:
45 min
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Items in this lesson
Some more practice with §8.2, §8.3 and §8.4 !
Nothing new, this time.
This makes sense, as doing adding and subtracting with
positive and negative numbers is quite tricky!
Slide 1 - Slide
Slide 2 - Slide
This lesson ...
+ you'll get a lot of time to work on with the SUMMARY/EXTRA EXERCISES
+ a Movie about adding and subtracting with positive and negative numbers
+ then follows a short look back at §9.2 and §9.3
Slide 3 - Slide
Adding 1:
6 + 7 = 13
The simplest type of exercise.
A positive number, 7, is added to a number. This makes the result greater than the start: 13 is greater than 6.
Slide 4 - Slide
Adding 2:
7 + -4 = 3
A NEGATIVE number is added to a number.
Now the result is less: 3 is less than 7.
Slide 5 - Slide
Subtracting 1:
8 - 5 = 3
A Positive number is subtracted from a number.
the result is less: 3 is less than 8.
Beware of the last type, next slide!
Slide 6 - Slide
Subtracting 2:
6 - -5 = ....
This is the most exciting type!
If a negative number is subtracted, it has the same effect as adding a positive number: 6 - -5 = 6 + 5 = 11
Slide 7 - Slide
Once more the whitch's cauldron:
6 - -5 = ....
Suppose the start temperature in the cauldron
is 6 degrees. Now she takes out 5 Cold Blocks.
then it gets warmer in the cauldron!
So taking out cold blocks does the same as putting in hot blocks.
So: 6 - -5 = 6 + 5 = 11
Slide 8 - Slide
Now follows a MOVIE, that explains it all in a clear way!
After that some tasks follow, for you to show if you understand it all, now!
Finally some Homework tasks are done by you.
Slide 9 - Slide
Slide 10 - Video
-5 --6 = ...
A
-1
B
11
C
1
D
-11
Slide 11 - Quiz
-6 -7 = ...
A
13
B
1
C
-1
D
-13
Slide 12 - Quiz
Slide 13 - Slide
Slide 14 - Slide
6 + -3 x -4 =
A
-12
B
18
C
-6
D
-1
Slide 15 - Quiz
6 + -3 x -4 =...
6 + 12 = 18
Slide 16 - Slide
Homework time:
Finish the homework now.
Also CHECK it with the SOLUTIONSBOOK
Make a few pics and send them in in GC
Slide 17 - Slide
The homework is about:
+ §9.2 and §9.3, that we just discussed!
+ Do some more exercises about this content,
before we go on with §9.4 Multiplication and division
Slide 18 - Slide
homework time
After all this, make the following tasks:
+ HV1Y: p.51 S3 + S6 p.55 S13 + S15 p.59 S21 + S23
+ G1X , C1X and A1X: p.51 C1 + C2 p.55 C3 + C4 p.59 C5 + C6
Slide 19 - Slide
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