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Slide 1:
Diapositive
Wiskunde
Middelbare school
vwo
Leerjaar 2
Cette leçon contient
54 diapositives
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ABC-formule
Pak je Ipad en aantekeningenschrift
Slide 1 - Diapositive
Opbouw
Uitleg 30 min
Zelfstandig werken 20 min
(Uitleg 15 min)
Zelfstandig werken 15 min
Afsluiting 10 min
Slide 2 - Diapositive
Kwadratische vergelijkingen
--> wortel nemen
--> haakjes maken
x
2
=
8
1
3
x
2
+
1
2
x
=
0
Slide 3 - Diapositive
Kwadratische vergelijkingen
--> wortel nemen
--> haakjes maken
--> ?
x
2
=
8
1
3
x
2
+
1
2
x
=
0
7
x
2
+
9
x
−
1
2
=
0
Slide 4 - Diapositive
Leerdoelen
Je weet wat de a, b en c in een kwadratische formule zijn
Je kan een drieterm oplossen met de abc-formule
Je weet wat het verschil tussen een één-term, twee-term en drie-term vergelijking is
Je kan de juiste oplossingmethode bij een kwadratische vergelijking kiezen
Slide 5 - Diapositive
Drietermen oplossen
1
9
x
2
+
x
−
3
=
0
5
x
2
+
9
x
+
1
2
=
0
6
x
2
−
7
x
+
1
=
0
Slide 6 - Diapositive
Drietermen oplossen
1
9
x
2
+
x
−
3
=
0
5
x
2
+
9
x
+
1
2
=
0
6
x
2
−
7
x
+
1
=
0
a
x
2
+
b
x
+
c
=
0
Slide 7 - Diapositive
Drietermen oplossen
1
9
x
2
+
x
−
3
=
0
5
x
2
+
9
x
+
1
2
=
0
6
x
2
−
7
x
+
1
=
0
a
x
2
+
b
x
+
c
=
0
a
=
5
Slide 8 - Diapositive
Drietermen oplossen
1
9
x
2
+
x
−
3
=
0
5
x
2
+
9
x
+
1
2
=
0
6
x
2
−
7
x
+
1
=
0
a
x
2
+
b
x
+
c
=
0
a
=
5
b
=
9
Slide 9 - Diapositive
Drietermen oplossen
1
9
x
2
+
x
−
3
=
0
5
x
2
+
9
x
+
1
2
=
0
6
x
2
−
7
x
+
1
=
0
a
x
2
+
b
x
+
c
=
0
a
=
5
b
=
9
c
=
1
2
Slide 10 - Diapositive
Drietermen oplossen
1
9
x
2
+
x
−
3
=
0
5
x
2
+
9
x
+
1
2
=
0
6
x
2
−
7
x
+
1
=
0
a
x
2
+
b
x
+
c
=
0
a
=
5
b
=
9
c
=
1
2
a
=
1
9
Slide 11 - Diapositive
Drietermen oplossen
1
9
x
2
+
x
−
3
=
0
5
x
2
+
9
x
+
1
2
=
0
6
x
2
−
7
x
+
1
=
0
a
x
2
+
b
x
+
c
=
0
a
=
5
b
=
9
c
=
1
2
a
=
1
9
b
=
1
Slide 12 - Diapositive
Drietermen oplossen
1
9
x
2
+
x
−
3
=
0
5
x
2
+
9
x
+
1
2
=
0
6
x
2
−
7
x
+
1
=
0
a
x
2
+
b
x
+
c
=
0
a
=
5
b
=
9
c
=
1
2
a
=
1
9
b
=
1
c
=
−
3
Slide 13 - Diapositive
Drietermen oplossen
1
9
x
2
+
x
−
3
=
0
5
x
2
+
9
x
+
1
2
=
0
6
x
2
−
7
x
+
1
=
0
a
x
2
+
b
x
+
c
=
0
a
=
5
b
=
9
c
=
1
2
a
=
1
9
b
=
1
c
=
−
3
a
=
6
Slide 14 - Diapositive
Drietermen oplossen
1
9
x
2
+
x
−
3
=
0
5
x
2
+
9
x
+
1
2
=
0
6
x
2
−
7
x
+
1
=
0
a
x
2
+
b
x
+
c
=
0
a
=
5
b
=
9
c
=
1
2
a
=
1
9
b
=
1
c
=
−
3
a
=
6
b
=
−
7
Slide 15 - Diapositive
Drietermen oplossen
1
9
x
2
+
x
−
3
=
0
5
x
2
+
9
x
+
1
2
=
0
6
x
2
−
7
x
+
1
=
0
a
x
2
+
b
x
+
c
=
0
a
=
5
b
=
9
c
=
1
2
a
=
1
9
b
=
1
c
=
−
3
a
=
6
b
=
−
7
c
=
1
Slide 16 - Diapositive
a = ..., b = ..., c = ...
3
x
2
+
2
x
+
7
=
0
timer
1:00
Slide 17 - Question ouverte
a = ..., b = ..., c = ...
3
x
2
+
2
x
+
7
=
0
Slide 18 - Diapositive
a = 3, b = 2, c = 7
3
x
2
+
2
x
+
7
=
0
Slide 19 - Diapositive
a = ..., b = ..., c = ...
8
x
2
+
x
−
3
=
0
timer
1:00
Slide 20 - Question ouverte
a = ..., b = ..., c = ...
8
x
2
+
x
−
3
=
0
Slide 21 - Diapositive
a = 8, b = 1, c =-3
8
x
2
+
x
−
3
=
0
Slide 22 - Diapositive
a = 8, b = 1, c =-3
8
x
2
+
x
−
3
=
0
x
=
2
a
−
b
±
√
b
2
−
4
a
c
Slide 23 - Diapositive
Drieterm oplossen
3
x
2
+
1
8
x
+
1
5
=
0
Slide 24 - Diapositive
Drieterm oplossen
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
Slide 25 - Diapositive
Drieterm oplossen
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
x
=
2
a
−
b
±
√
b
2
−
4
a
c
Slide 26 - Diapositive
Drieterm oplossen
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
3
−
b
±
√
b
2
−
4
⋅
3
⋅
c
Slide 27 - Diapositive
Drieterm oplossen
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
3
−
1
8
±
√
(
1
8
)
2
−
4
⋅
3
⋅
c
Slide 28 - Diapositive
Drieterm oplossen
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
3
−
1
8
±
√
(
1
8
)
2
−
4
⋅
3
⋅
1
5
Slide 29 - Diapositive
Drieterm oplossen
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
3
−
1
8
±
√
1
8
2
−
4
⋅
3
⋅
1
5
x
=
2
⋅
3
−
1
8
±
√
(
1
8
)
2
−
4
⋅
3
⋅
1
5
Slide 30 - Diapositive
Drieterm oplossen
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
3
−
1
8
±
√
1
8
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
√
3
2
4
−
1
8
0
x
=
2
⋅
3
−
1
8
±
√
(
1
8
)
2
−
4
⋅
3
⋅
1
5
Slide 31 - Diapositive
Drieterm oplossen
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
3
−
1
8
±
√
1
8
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
√
3
2
4
−
1
8
0
x
=
6
−
1
8
±
√
1
4
4
x
=
2
⋅
3
−
1
8
±
√
(
1
8
)
2
−
4
⋅
3
⋅
1
5
Slide 32 - Diapositive
Drieterm oplossen
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
3
−
1
8
±
√
1
8
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
√
3
2
4
−
1
8
0
x
=
6
−
1
8
±
√
1
4
4
x
=
2
⋅
3
−
1
8
±
√
(
1
8
)
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
1
2
Slide 33 - Diapositive
Drieterm oplossen
of
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
3
−
1
8
±
√
1
8
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
√
3
2
4
−
1
8
0
x
=
6
−
1
8
±
√
1
4
4
x
=
2
⋅
3
−
1
8
±
√
(
1
8
)
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
1
2
x
=
6
−
1
8
+
1
2
x
=
6
−
1
8
−
1
2
Slide 34 - Diapositive
Drieterm oplossen
of
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
3
−
1
8
±
√
1
8
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
√
3
2
4
−
1
8
0
x
=
6
−
1
8
±
√
1
4
4
x
=
2
⋅
3
−
1
8
±
√
(
1
8
)
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
1
2
x
=
6
−
1
8
+
1
2
x
=
6
−
1
8
−
1
2
x
=
6
−
6
Slide 35 - Diapositive
Drieterm oplossen
of
of
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
3
−
1
8
±
√
1
8
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
√
3
2
4
−
1
8
0
x
=
6
−
1
8
±
√
1
4
4
x
=
2
⋅
3
−
1
8
±
√
(
1
8
)
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
1
2
x
=
6
−
1
8
+
1
2
x
=
6
−
1
8
−
1
2
x
=
6
−
6
x
=
6
−
3
0
Slide 36 - Diapositive
Drieterm oplossen
of
of
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
3
−
1
8
±
√
1
8
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
√
3
2
4
−
1
8
0
x
=
6
−
1
8
±
√
1
4
4
x
=
2
⋅
3
−
1
8
±
√
(
1
8
)
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
1
2
x
=
6
−
1
8
+
1
2
x
=
6
−
1
8
−
1
2
x
=
6
−
6
x
=
6
−
3
0
x
=
−
1
Slide 37 - Diapositive
Drieterm oplossen
of
of
of
3
x
2
+
1
8
x
+
1
5
=
0
a
=
3
b
=
1
8
c
=
1
5
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
3
−
1
8
±
√
1
8
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
√
3
2
4
−
1
8
0
x
=
6
−
1
8
±
√
1
4
4
x
=
2
⋅
3
−
1
8
±
√
(
1
8
)
2
−
4
⋅
3
⋅
1
5
x
=
6
−
1
8
±
1
2
x
=
6
−
1
8
+
1
2
x
=
6
−
1
8
−
1
2
x
=
6
−
6
x
=
6
−
3
0
x
=
−
1
x
=
−
5
Slide 38 - Diapositive
Aantekening: 8.6 Drieterm oplossen
Stappenplan:
1. Zorg voor = 0
2. Schrijf de a, b en c op
3. Schrijf de abc-formule op
4. Vul de abc-formule in
5. Bereken de oplossingen
Slide 39 - Diapositive
Aantekening: Voorbeeld
2
x
2
−
2
4
x
+
6
4
=
0
Slide 40 - Diapositive
Drieterm oplossen
−
5
x
2
−
1
5
x
+
9
0
=
0
Slide 41 - Diapositive
Drieterm oplossen
−
5
x
2
−
1
5
x
+
9
0
=
0
a
=
−
5
b
=
−
1
5
c
=
9
0
Slide 42 - Diapositive
Drieterm oplossen
−
5
x
2
−
1
5
x
+
9
0
=
0
a
=
−
5
b
=
−
1
5
c
=
9
0
x
=
2
a
−
b
±
√
b
2
−
4
a
c
Slide 43 - Diapositive
Drieterm oplossen
−
5
x
2
−
1
5
x
+
9
0
=
0
a
=
−
5
b
=
−
1
5
c
=
9
0
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
Slide 44 - Diapositive
Drieterm oplossen
−
5
x
2
−
1
5
x
+
9
0
=
0
a
=
−
5
b
=
−
1
5
c
=
9
0
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
Slide 45 - Diapositive
Drieterm oplossen
−
5
x
2
−
1
5
x
+
9
0
=
0
a
=
−
5
b
=
−
1
5
c
=
9
0
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
√
2
2
5
−
−
1
8
0
0
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
Slide 46 - Diapositive
Drieterm oplossen
−
5
x
2
−
1
5
x
+
9
0
=
0
a
=
−
5
b
=
−
1
5
c
=
9
0
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
√
2
2
5
−
−
1
8
0
0
x
=
−
1
0
1
5
±
√
2
0
2
5
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
Slide 47 - Diapositive
Drieterm oplossen
−
5
x
2
−
1
5
x
+
9
0
=
0
a
=
−
5
b
=
−
1
5
c
=
9
0
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
√
2
2
5
−
−
1
8
0
0
x
=
−
1
0
1
5
±
√
2
0
2
5
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
4
5
Slide 48 - Diapositive
Drieterm oplossen
of
−
5
x
2
−
1
5
x
+
9
0
=
0
a
=
−
5
b
=
−
1
5
c
=
9
0
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
√
2
2
5
−
−
1
8
0
0
x
=
−
1
0
1
5
±
√
2
0
2
5
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
4
5
x
=
−
1
0
1
5
+
4
5
x
=
−
1
0
1
5
−
4
5
Slide 49 - Diapositive
Drieterm oplossen
of
−
5
x
2
−
1
5
x
+
9
0
=
0
a
=
−
5
b
=
−
1
5
c
=
9
0
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
√
2
2
5
−
−
1
8
0
0
x
=
−
1
0
1
5
±
√
2
0
2
5
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
4
5
x
=
−
1
0
1
5
+
4
5
x
=
−
1
0
1
5
−
4
5
x
=
−
1
0
6
0
Slide 50 - Diapositive
Drieterm oplossen
of
of
−
5
x
2
−
1
5
x
+
9
0
=
0
a
=
−
5
b
=
−
1
5
c
=
9
0
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
√
2
2
5
−
−
1
8
0
0
x
=
−
1
0
1
5
±
√
2
0
2
5
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
4
5
x
=
−
1
0
1
5
+
4
5
x
=
−
1
0
1
5
−
4
5
x
=
−
1
0
6
0
x
=
−
1
0
−
3
0
Slide 51 - Diapositive
Drieterm oplossen
of
of
−
5
x
2
−
1
5
x
+
9
0
=
0
a
=
−
5
b
=
−
1
5
c
=
9
0
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
√
2
2
5
−
−
1
8
0
0
x
=
−
1
0
1
5
±
√
2
0
2
5
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
4
5
x
=
−
1
0
1
5
+
4
5
x
=
−
1
0
1
5
−
4
5
x
=
−
1
0
6
0
x
=
−
1
0
−
3
0
x
=
−
6
Slide 52 - Diapositive
Drieterm oplossen
of
of
of
−
5
x
2
−
1
5
x
+
9
0
=
0
a
=
−
5
b
=
−
1
5
c
=
9
0
x
=
2
a
−
b
±
√
b
2
−
4
a
c
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
√
2
2
5
−
−
1
8
0
0
x
=
−
1
0
1
5
±
√
2
0
2
5
x
=
2
⋅
−
5
−
−
1
5
±
√
(
−
1
5
)
2
−
4
⋅
−
5
⋅
9
0
x
=
−
1
0
1
5
±
4
5
x
=
−
1
0
1
5
+
4
5
x
=
−
1
0
1
5
−
4
5
x
=
−
1
0
6
0
x
=
−
1
0
−
3
0
x
=
−
6
x
=
3
Slide 53 - Diapositive
Zelfstandig werken
Ga aan de slag met de opgaven van 8.6A
Overleg met je buurman/buurvrouw
Vragen? Steek je vinger op
Klaar? Begin aan 8.6B
timer
20:00
Slide 54 - Diapositive
Plus de leçons comme celle-ci
Kwadratische verbanden
Avril 2018
- Leçon avec
22 diapositives
Wiskunde
Middelbare school
havo
Leerjaar 2
ABC-formule
Février 2024
- Leçon avec
10 diapositives
Wiskunde
Middelbare school
havo, vwo
Leerjaar 2
Haakjes maken
Janvier 2024
- Leçon avec
38 diapositives
Wiskunde
Middelbare school
vwo
Leerjaar 3
H4.3/4.4 Kwadratische vergelijkingen
Décembre 2024
- Leçon avec
18 diapositives
Wiskunde
Middelbare school
havo
Leerjaar 3
V3 H4 ABC-formule 4.4 kwadratische vergelijkingen
Novembre 2021
- Leçon avec
11 diapositives
Wiskunde
Middelbare school
vwo
Leerjaar 3
at3e maandag 18 januari herhaling Kwadratische verbanden
Janvier 2021
- Leçon avec
22 diapositives
Wiskunde
Middelbare school
vwo
Leerjaar 3
4.2 De ABC-formule
Janvier 2024
- Leçon avec
17 diapositives
Wiskunde
Middelbare school
havo
Leerjaar 4
ABC-formule
Mars 2023
- Leçon avec
38 diapositives
Wiskunde
Middelbare school
vwo
Leerjaar 2