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1819 C2X §3.2
Schedule
Today: §3.2 in class (40 minutes), grades on Magister later today
Monday: §3.3 & discuss test CH2 in class
Tuesday: §3.4 in class
Friday: No new material, get all your work made and checked
before the vacation!
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Slide 1:
Slide
Wiskunde
Middelbare school
vwo
Leerjaar 2
This lesson contains
10 slides
, with
interactive quizzes
and
text slides
.
Lesson duration is:
50 min
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Items in this lesson
Schedule
Today: §3.2 in class (40 minutes), grades on Magister later today
Monday: §3.3 & discuss test CH2 in class
Tuesday: §3.4 in class
Friday: No new material, get all your work made and checked
before the vacation!
Slide 1 - Slide
Recap: Opposite numbers
Slide 2 - Slide
Adding and subtracting square roots
Adding and subtracting square roots works the same as adding and subtracting like terms:
Slide 3 - Slide
Calculate
√
3
+
√
3
+
√
3
+
√
3
=
A
√
1
2
B
√
8
1
C
4
√
3
D
3
√
4
Slide 4 - Quiz
Adding and subtracting square roots
You cannot add up or subtract square roots with a different number under the square root sign. (In the same way you cannot add up different terms)
Slide 5 - Slide
Write as short as possible
y
=
√
x
+
√
5
+
√
x
+
√
7
A
y
=
2
√
x
+
√
1
2
B
y
=
2
√
x
+
√
5
+
√
7
C
y
=
√
2
x
+
1
2
D
y
=
√
3
5
x
2
Slide 6 - Quiz
Adding and subtracting square roots
Writing expressions with addition and subtraction as short as possible with square roots works the same as with like terms.
Slide 7 - Slide
Write as short as possible
P
=
1
5
√
a
+
6
√
b
+
5
√
a
−
2
√
b
A
P
=
2
0
√
a
+
8
√
b
B
P
=
2
4
√
a
b
C
P
=
2
0
√
a
+
4
√
b
D
cannot be written any shorter
Slide 8 - Quiz
Homework Monday
Make and correct §3.2 (support, standard or challenge)
Slide 9 - Slide
Any exercises from the HW or theory I should discuss on the board?
Slide 10 - Mind map
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