Quadratic formulas (t1b)

Quadratic formulas




February 10th
t1b
14:30
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Slide 1: Slide
WiskundeMiddelbare schoolvwoLeerjaar 1

This lesson contains 24 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 75 min

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)52+32=
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)1215327+32=
A
-49
B
5
C
27
D
85

Slide 5 - Quiz

a)52+32=
b)(6)2(4)2=
c)1215327+32=

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=4k+3

Slide 9 - Slide

Quadratic formulas
'Linear' formulas                                           



y=4x+3

Slide 10 - Slide

Quadratic formulas
'Linear' formulas                                                       'Quadratic' formulas
----------------

y=4x+3
y=21x2
2

Slide 11 - Slide

Quadratic formulas
'Linear' formulas                                                       'Quadratic' formulas
----------------

y=4x+3
y=21x2
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- 3
N = 2k + 6
B = 5 - 3t
K = 7x + 62
A = 9 - 2h2

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=21x22

Slide 16 - Slide

Given is the formula

What is y for x = 3 ?
y=2x21
A
5
B
7
C
19
D
17

Slide 17 - Quiz

Given is the formula

What is y for x = -4 ?
y=2x21
A
-31
B
-33
C
31
D
33

Slide 18 - Quiz

y=2x21
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