Practice square roots (t2a)

Roots:
brackets 
& formulas




February 10th, 2022
t2a
11:30
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Slide 1: Slide
WiskundeMiddelbare schoolvwoLeerjaar 1

This lesson contains 27 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 60 min

Items in this lesson

Roots:
brackets 
& formulas




February 10th, 2022
t2a
11:30
At home?
Camera ON

Log into the LessonUp with the code below!

Slide 1 - Slide

Schedule
  • Announcements                                            5 min
  • Review: simplifying square roots         10 min
  • Square roots in brackets                          10 min
  • Practice + check                                           15 min
  • Square root formulas                                 10 min
  • Tiny practice quiz                                         20 min

Slide 2 - Slide

Announcements
  • Quiz square roots: 25%       TOMORROW
  • Statistics Project: 75%

Slide 3 - Slide

Anonymous poll (be honest!):
Did you do all your homework for this lesson?
Yes
No

Slide 4 - Poll

Review question 1:
Simplify.

3575
A
45
B
45
C
4
D
Cannot be simplified

Slide 5 - Quiz

Review question 2:
Simplify.


55+37
A
812
B
835
C
1512
D
Cannot be simplified

Slide 6 - Quiz

Review question 3:
Simplify.

3246
A
78
B
712
C
128
D
1212

Slide 7 - Quiz

Review question 4:
Factorize.

50
A
252
B
225
C
52
D
25

Slide 8 - Quiz

Review question 5:
Factorize and simplify. Write it down!

50+18
A
82
B
342
C
68
D
Cannot be simplified

Slide 9 - Quiz

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 10 - Slide

Single brackets
Letters
Square roots

Slide 11 - Slide

Double brackets
Letters
Square roots

Slide 12 - Slide

Simplify.
2(35+4)
A
65+4
B
65+42
C
310+4
D
310+42

Slide 13 - Quiz

Simplify.
(3+2)(32)
A
1
B
1
C
34
D
32

Slide 14 - Quiz

Practice
~15 min, discuss 49ad afterwards

Basic route
48, 49                                            (brackets)
62, 63, 64, 66, 67                      (later: formulas)
Advanced route
49, 50, (51)                                   (brackets)
63, 64, 65, 66, 68                      (later: formulas)

Slide 15 - Slide

Slide 16 - Slide

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

Slide 17 - 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 18 - Open question

Let's build the graph
y=x

Slide 19 - Slide

www.geogebra.org/graphing

Slide 20 - 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 21 - Quiz

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

is the same as
y=316x
y=48x

Slide 22 - Open question

True or not true?

is the same as
y=4+9x
y=4+3x
A
True
B
Not true

Slide 23 - Quiz

True or not true?

is the same as
y=4+3x
y=7x
A
True
B
Not true

Slide 24 - Quiz

Practice...
...or practice quiz?

Basic route
48, 49                                            (brackets)
62, 63, 64, 66, 67                      (formulas)
Advanced route
49, 50, (51)                                   (brackets)
63, 64, 65, 66, 68                      (formulas)

Slide 25 - Slide

Slide 26 - Slide

Tiny practice quiz
  • Copy the exercises in your
      notebook and solve them
  • Discuss afterwards
  • Done early? Continue with:
a.(52)2(5)2
b.43+6753
c.2273+96
d.275+427
e.(7+8)2

Slide 27 - Slide