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3Thavo Ch8 or Ch10: REFRESH
Welcome ...
+ to this first Long distance Math Lesson
+ Thanks to the technical developments you can work on ...
+ by yourself, but also a bit together,
+ starting right now with this LessonUp!
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Wiskunde
Middelbare school
havo
Leerjaar 3
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Welcome ...
+ to this first Long distance Math Lesson
+ Thanks to the technical developments you can work on ...
+ by yourself, but also a bit together,
+ starting right now with this LessonUp!
Slide 1 - Diapositive
Homework :
Math A: Ch 8 REFRESH p.8/9
Math B: Ch 10 Refresh p.82/83
Before you do this §, we will look at a few fine points.
We start with a short intro for the Math B pupils.
If you do Math A, please follow this too.
It does not take long and you are ready when 'your slides' start.
Slide 2 - Diapositive
Make sure you use the right materials (that you cannot forget now, being at home!):
+ pencil
+ pair of compasses
+ geo triangle
Slide 3 - Diapositive
Question about these triangles on next slide!
Slide 4 - Diapositive
Which statement is true?
A
A right-angled triangle can have an obtuse angle too.
B
An acute-angled triangle has 3 acute angles.
C
An obtuse-angled triangle has only one obtuse angle.
D
A triangle can be right-angled and obtuse-angled at the same time.
Slide 5 - Quiz
Slide 6 - Diapositive
Math B students,
Good luck working out Ch 10 Refresh, p.82/83.
Now Math A's slides, about Refresh Ch 8, p.8/9, start!
Slide 7 - Diapositive
Draw that 'frequency polygon', it says in R1b.
But ...
What is a frequency polygon ?!
Slide 8 - Diapositive
What is a frequency polygon?
A
a kinda bar chart
B
a line that joins points from a table, in a graph
C
a graph, mostly time is included
D
has to do with 'News on Polygon'
Slide 9 - Quiz
frequency polygon:
Slide 10 - Diapositive
one more time 'frequency polygon',
going into the WORDS:
+ frequency: how often (frequent) something happens
+ polygon: a line drawn through points, taken from
a table
Slide 11 - Diapositive
Calculating percentages:
a FreshenUp in a LessonUp
see next slide!
Slide 12 - Diapositive
But ... it doesn't mean a thing, without some examples!
First with a 'ratio table'. Then with a 'factor'.
Slide 13 - Diapositive
Slide 14 - Diapositive
Slide 15 - Diapositive
In R3d you are asked to make a
frequency table ?!
Slide 16 - Diapositive
Frequency table - an example:
Slide 17 - Diapositive
Homework time.
+ Good luck doing REFRESH Ch8 or Ch 10.
+ When you are stuck and the Solutionsbook is not clear enough for you,
+ you may mail me and I will provide you with an explanation.
ncf.hauwert@tabor.nl
Slide 18 - Diapositive
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