# Quiz square roots & root formulas (t2a)

Quiz rules
• Camera is ON and shows most of your hands and face
• Your quiz version can be found at 12:30 in
Teams --> Assignments --> (Hand in) quiz square roots
• Done? Ask permission in chat to get your phone for pictures
• You have until 12:50 to hand in your quiz. It closes at 12:55!
• Oral justifications for cases of doubt
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Slide 1: Slide
WiskundeMiddelbare schoolvwoLeerjaar 1

This lesson contains 15 slides, with interactive quizzes and text slides.

Lesson duration is: 60 min

## Items in this lesson

Quiz rules
• Camera is ON and shows most of your hands and face
• Your quiz version can be found at 12:30 in
Teams --> Assignments --> (Hand in) quiz square roots
• Done? Ask permission in chat to get your phone for pictures
• You have until 12:50 to hand in your quiz. It closes at 12:55!
• Oral justifications for cases of doubt

#### Slide 1 -Slide

Formulas with square roots

March 10th, 2021
t2a
12:05
Cameras ON
y=x

#### Slide 2 -Slide

Schedule
• Quiz                                                                   max 30 min
• Formulas with square roots                             15 min
• Practice                                                                     15 min

Wrap-up

Programme

#### Slide 4 -Slide

• Statistics Project: 0.75
• Quiz square roots: 0.25

#### Slide 5 -Slide

Intended Learning Outcomes
At the end of the lesson you can...
• Work out brackets with square roots in them
• Do all sorts of calculations with square roots

#### Slide 6 -Slide

What is the graph of a quadratic formula called again?
A
Linear graph
B
Hyperbola
C
Parabola
D
Curving graph

#### Slide 7 -Quiz

You know two things:
- The shape of the graph of a quadratic formula
- A square root is the 'opposite' of a square
With that in mind, describe what you think the
graph of the formula on the right would look like.
y=x

#### Slide 8 -Open question

Let's build the graph
y=x

#### Slide 9 -Slide

www.geogebra.org/graphing

#### Slide 10 -Slide

What will the graph of thís formula look like then?
y=x
A
A normal parabola again
B
A line
C
The same half sideways parabola, but going left instead of right
D
The same half sideways parabola, but going down instead of up

#### Slide 11 -Quiz

Explain why the following statement is/isn't true:

is the same as
y=316x
y=12x

#### Slide 12 -Open question

True or not true?

is the same as
y=4+9x
y=7x
A
True
B
Not true

#### Slide 13 -Quiz

Practice
Chapter 4:
Do 62, 63 and 64 ór 65
Do 66 and 68