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hv2f wortels herleiden
Welkom
Paragraaf 5.3
Theorie C & D
zorg voor een rekenmachine + schrift en pen.
1 / 37
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Slide 1:
Slide
Wiskunde
Middelbare school
havo, vwo
Leerjaar 2
This lesson contains
37 slides
, with
interactive quizzes
and
text slides
.
Lesson duration is:
30 min
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Items in this lesson
Welkom
Paragraaf 5.3
Theorie C & D
zorg voor een rekenmachine + schrift en pen.
Slide 1 - Slide
Leerdoelen van vandaag
- Je kunt wortels vermenigvuldigen
- je kunt de factor voor het wortelteken brengen
Slide 2 - Slide
Wat gaan we doen?
- Instructie: wortels vermenigvuldigen en factor voor het wortelteken brengen
- Aan de slag met het huiswerk
- lesafsluiting
Slide 3 - Slide
Wortels vermenigvuldigen
√
3
⋅
√
7
Slide 4 - Slide
Wortels vermenigvuldigen
Je kunt wortels met elkaar vermenigvuldigen.
Je herkent het verschil tussen het
optellen en vermenigvuldigen van wortels.
3
√
2
⋅
5
√
7
=
3
√
2
+
5
√
7
=
Slide 5 - Slide
Herleid
8
√
6
+
7
√
6
A
1
5
√
6
B
1
5
√
1
2
C
9
0
D
kan niet
Slide 6 - Quiz
Wortels vermenigvuldigen
√
3
⋅
√
7
=
Slide 7 - Slide
Wortels vermenigvuldigen
√
3
⋅
√
7
=
√
3
⋅
7
Slide 8 - Slide
Wortels vermenigvuldigen
√
3
⋅
√
7
=
√
3
⋅
7
=
√
2
1
Slide 9 - Slide
Wortels vermenigvuldigen
√
3
⋅
√
7
=
√
3
⋅
7
=
√
2
1
√
a
⋅
√
b
=
√
a
b
Slide 10 - Slide
Wortels vermenigvuldigen
√
3
⋅
√
7
=
√
3
⋅
7
=
√
2
1
√
a
⋅
√
b
=
√
a
b
Slide 11 - Slide
Wortels vermenigvuldigen
2
√
3
⋅
5
√
2
=
√
a
⋅
√
b
=
√
a
b
Slide 12 - Slide
Wortels vermenigvuldigen
2
√
3
⋅
5
√
2
=
2
⋅
√
3
⋅
5
⋅
√
2
√
a
⋅
√
b
=
√
a
b
Slide 13 - Slide
Wortels vermenigvuldigen
2
√
3
⋅
5
√
2
=
2
⋅
√
3
⋅
5
⋅
√
2
√
a
⋅
√
b
=
√
a
b
=
2
⋅
5
⋅
√
3
⋅
√
2
Slide 14 - Slide
Wortels vermenigvuldigen
2
√
3
⋅
5
√
2
=
2
⋅
√
3
⋅
5
⋅
√
2
√
a
⋅
√
b
=
√
a
b
=
2
⋅
5
⋅
√
3
⋅
√
2
=
1
0
⋅
√
3
⋅
2
Slide 15 - Slide
Wortels vermenigvuldigen
2
√
3
⋅
5
√
2
=
2
⋅
√
3
⋅
5
⋅
√
2
√
a
⋅
√
b
=
√
a
b
=
2
⋅
5
⋅
√
3
⋅
√
2
=
1
0
⋅
√
3
⋅
2
=
1
0
√
6
Slide 16 - Slide
Wortels vermenigvuldigen
2
√
3
⋅
5
√
2
=
1
0
√
6
√
a
⋅
√
b
=
√
a
b
Slide 17 - Slide
Oefenvragen
3 vragen
Slide 18 - Slide
Herleid
5
√
2
⋅
3
√
7
A
4
5
B
1
5
√
1
4
C
1
5
√
2
7
D
kan niet
Slide 19 - Quiz
Herleid
7
√
2
+
4
√
3
A
1
1
√
5
B
2
8
√
5
C
2
8
√
6
D
kan niet
Slide 20 - Quiz
Herleid
3
√
2
⋅
4
√
5
⋅
2
√
1
0
A
2
4
√
1
7
B
2
4
√
1
0
0
C
2
4
0
D
kan niet
Slide 21 - Quiz
Wortels vermenigvuldigen
√
a
⋅
√
b
=
√
a
b
3
√
2
⋅
4
√
5
⋅
2
√
1
0
=
Slide 22 - Slide
Wortels vermenigvuldigen
√
a
⋅
√
b
=
√
a
b
3
√
2
⋅
4
√
5
⋅
2
√
1
0
=
3
⋅
4
⋅
2
⋅
√
2
⋅
√
5
⋅
√
1
0
Slide 23 - Slide
Wortels vermenigvuldigen
√
a
⋅
√
b
=
√
a
b
3
√
2
⋅
4
√
5
⋅
2
√
1
0
=
3
⋅
4
⋅
2
⋅
√
2
⋅
√
5
⋅
√
1
0
=
2
4
⋅
√
2
⋅
√
5
⋅
√
1
0
Slide 24 - Slide
Wortels vermenigvuldigen
3
√
2
⋅
4
√
5
⋅
2
√
1
0
=
3
⋅
4
⋅
2
⋅
√
2
⋅
√
5
⋅
√
1
0
=
2
4
⋅
√
2
⋅
√
5
⋅
√
1
0
√
a
⋅
√
b
⋅
√
c
=
√
a
b
c
Slide 25 - Slide
Wortels vermenigvuldigen
3
√
2
⋅
4
√
5
⋅
2
√
1
0
=
3
⋅
4
⋅
2
⋅
√
2
⋅
√
5
⋅
√
1
0
=
2
4
⋅
√
2
⋅
√
5
⋅
√
1
0
=
2
4
⋅
√
2
⋅
5
⋅
1
0
√
a
⋅
√
b
⋅
√
c
=
√
a
b
c
Slide 26 - Slide
Wortels vermenigvuldigen
3
√
2
⋅
4
√
5
⋅
2
√
1
0
=
3
⋅
4
⋅
2
⋅
√
2
⋅
√
5
⋅
√
1
0
=
2
4
⋅
√
2
⋅
√
5
⋅
√
1
0
=
2
4
⋅
√
2
⋅
5
⋅
1
0
=
2
4
⋅
√
1
0
0
√
a
⋅
√
b
⋅
√
c
=
√
a
b
c
Slide 27 - Slide
Wortels vermenigvuldigen
√
a
⋅
√
b
⋅
√
c
=
√
a
b
c
3
√
2
⋅
4
√
5
⋅
2
√
1
0
=
3
⋅
4
⋅
2
⋅
√
2
⋅
√
5
⋅
√
1
0
=
2
4
⋅
√
2
⋅
√
5
⋅
√
1
0
=
2
4
⋅
√
2
⋅
5
⋅
1
0
=
2
4
⋅
√
1
0
0
=
2
4
⋅
1
0
Slide 28 - Slide
Wortels vermenigvuldigen
√
a
⋅
√
b
⋅
√
c
=
√
a
b
c
3
√
2
⋅
4
√
5
⋅
2
√
1
0
=
3
⋅
4
⋅
2
⋅
√
2
⋅
√
5
⋅
√
1
0
=
2
4
⋅
√
2
⋅
√
5
⋅
√
1
0
=
2
4
⋅
√
2
⋅
5
⋅
1
0
=
2
4
⋅
√
1
0
0
=
2
4
⋅
1
0
=
2
4
0
Slide 29 - Slide
timer
5:00
Slide 30 - Slide
Theorie D: Factor voor het wortelteken brengen
Slide 31 - Slide
Theorie D:
Factor voor het wortelteken brengen
(Herleiden)
√
3
2
=
√
1
6
⋅
2
=
√
1
6
⋅
√
2
=
4
√
2
√
3
2
=
√
4
⋅
8
=
√
4
⋅
√
8
=
2
√
8
Slide 32 - Slide
Theorie D:
Factor voor het wortelteken brengen (Herleiden)
√
2
4
=
√
4
⋅
6
=
√
4
⋅
√
6
=
2
√
6
Slide 33 - Slide
Wortels herleiden:
Theorie A
een factor voor het wortelteken brengen
Bekijk
√
7
5
Slide 34 - Slide
Haal een zo groot mogelijke factor voor het wortelteken.
√128
Slide 35 - Open question
Zelfstandig werken
Aan de slag
Eerste 5 min. stil aan de slag (extra uitleg)
Fluisterend of zelfstandig werken
Opgaven 52 t/m 63
timer
15:00
Slide 36 - Slide
Slide 37 - Slide
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