Chapter 6: Quadratic equations and inequalities - prior knowledge

Good morning!
When you come in the classroom: 
  1. Grab a marker 
  2. Write your name on the piece of paper 
  3. Fold the paper into a name card
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Slide 1: Tekstslide
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In deze les zitten 12 slides, met tekstslides.

time-iconLesduur is: 40 min

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Good morning!
When you come in the classroom: 
  1. Grab a marker 
  2. Write your name on the piece of paper 
  3. Fold the paper into a name card

Slide 1 - Tekstslide

Schedule:
  • Chapter 6 learning goals
  • Prior knowledge learning goals
  • 5 minute quiz
  • Prior knowledge theory OR start on your homework 

Slide 2 - Tekstslide

Ch. 6: Quadratic equations and inequalities 
At the end of this chapter I can: 
- solve any quadratic equation 
- calculate the discriminant of a quadratic equation 
- find out how many solutions a quadratic equations has
- solve quadratic equations with different methods 
- explain what a interval is 
- find the solutions to a quadratic inequality from graphs 

Slide 3 - Tekstslide

Prior knowledge: Simplifying and factorising 
At the end of this lesson I can: 
- simplify by multiplying out of brackets 
- factorize quadratic equations by taking the common factor out of brackets 
- factorize with the product-sum-method 

Slide 4 - Tekstslide

Time to energize!

Slide 5 - Tekstslide

5 minute quiz
1. (x + 2)2 = 


2. (3x - 7) · 5x + 6y = 


3. (x-4)(x+4) = 

4. 8x2 + 2x = 


5. x2 + 5x + 6 = 
Simplify:                                     Factorize:
timer
5:00

Slide 6 - Tekstslide

Check your answers! 
1. (x+2)= (x+2)·(x+2) =          2. (3x - 7) · 5x + 6y =                 3. (x-4)(x+4) = 

x+ x·2 + 2·x + 2·2 =                   3x · 5x - 7 · 5x + 6y =            x2+  x · 4 -  4 · x -4 · 4 = x2 + 2x + 2x + 4 =                         15x2 -35x + 6y                            x2 - 4x + 4x - 16 = 
x2 + 4x + 4                                                                                                x2 - 16
                                                                

Slide 7 - Tekstslide

Check your answers! 
4. 8x+ 2x =                                          5. x2 + 5x + 6 = 
     x(8x + 2)                                                  (x+2)(x+3)
product
sum
1  ·  6 
 7
2  ·  3
 5 
Put the common factor outside
the brackets 
Use the product-sum-method

Slide 8 - Tekstslide

What to do? 
I want to revise the simplifying and factorising theory with ma'am
OR 
I want to work on the homework by myself. 

Slide 9 - Tekstslide

Take out your diaries 
Homework for tomorrow 11-3-2021: 
Havo                 p. 8-9 #1-7

Slide 10 - Tekstslide

Prior knowledge: Simplifying and factorising 
At the end of this lesson I can: 
- simplify by multiplying out of brackets 
- factorize quadratic equations by taking the common factor out of brackets 
- factorize with the product-sum-method 

Slide 11 - Tekstslide

See you tomorrow!

Slide 12 - Tekstslide