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Quadratic formulas (t1b)
Quadratic formulas
February 10th
t1b
14:30
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Slide 1:
Slide
Wiskunde
Middelbare school
vwo
Leerjaar 1
This lesson contains
24 slides
, with
interactive quizzes
and
text slides
.
Lesson duration is:
75 min
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Items in this lesson
Quadratic formulas
February 10th
t1b
14:30
At home?
Camera ON
Log into the LessonUp with the code below
Slide 1 - Slide
Schedule
Homework
10
min
Review: square (roots) 10 min
Quizzes
Quadratic formulas
10 min
Quizzes
Silent practice
25 min
Discuss quiz 20 min
Slide 2 - Slide
a
)
5
2
+
3
2
=
A
8
B
16
C
34
D
64
Slide 3 - Quiz
b
)
(
−
6
)
2
−
(
−
4
)
2
=
A
-56
B
-20
C
2
D
20
Slide 4 - Quiz
c
)
√
1
2
1
−
5
⋅
√
3
2
7
+
3
2
=
A
-49
B
5
C
27
D
85
Slide 5 - Quiz
a
)
5
2
+
3
2
=
b
)
(
−
6
)
2
−
(
−
4
)
2
=
c
)
√
1
2
1
−
5
⋅
√
3
2
7
+
3
2
=
Slide 6 - Slide
Fill in three words (or sentences) related to formulas
Slide 7 - Mind map
Quadratic formulas
'Linear' formulas
Cost = 4 ⋅ number of kilometres + 3
Slide 8 - Slide
Quadratic formulas
'Linear' formulas
C
=
4
k
+
3
Slide 9 - Slide
Quadratic formulas
'Linear' formulas
y
=
4
x
+
3
Slide 10 - Slide
Quadratic formulas
'Linear' formulas 'Quadratic' formulas
----------------
y
=
4
x
+
3
y
=
2
1
x
−
2
2
Slide 11 - Slide
Quadratic formulas
'Linear' formulas 'Quadratic' formulas
----------------
y
=
4
x
+
3
y
=
2
1
x
−
2
2
Slide 12 - Slide
OK, quadratic formulas and parabolas...
...but no one uses this in real life!
Agree
Disagree
Slide 13 - Poll
Slide 14 - Slide
'Linear' formulas
'Quadratic' formulas
Drag every formula to the correct side.
y = x
2
- 3
N = 2k + 6
B = 5 - 3t
K = 7x + 6
2
A = 9 - 2h
2
Slide 15 - Drag question
Filling in
a quadratic formula
Given is the formula
What is
y
for
x = 2
?
What is
y
for
x = -3
?
y
=
2
1
x
2
−
2
Slide 16 - Slide
Given is the formula
What is y for x = 3 ?
y
=
2
x
2
−
1
A
5
B
7
C
19
D
17
Slide 17 - Quiz
Given is the formula
What is y for x = -4 ?
y
=
2
x
2
−
1
A
-31
B
-33
C
31
D
33
Slide 18 - Quiz
y
=
2
x
2
−
1
x
=
3
x
=
−
4
Slide 19 - Slide
Silent practice
No questions! :(
Read carefully - study theory/examples - look in solutions
Basic route
22, 23, 25, 26, 28, 29
Advanced route
18, 20, 25, 27, 29
Slide 20 - Slide
Quiz!
Slide 21 - Slide
Slide 22 - Slide
Slide 23 - Slide
Slide 24 - Slide
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