# Simplifying square roots (t2a)

Simplifying square roots

January 30th, 2023
t2a
8:30
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Slide 1: Slide
WiskundeMiddelbare schoolvwoLeerjaar 1

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

Lesson duration is: 60 min

## Items in this lesson

Simplifying square roots

January 30th, 2023
t2a
8:30
Go to lessonup.com and fill in the code below!

#### Slide 1 -Slide

Schedule
• Starting up                                                        5 min
• Review: square roots                                  15 min
+ hw-check
• Simplifying square roots                          15 min
• (Silent) practice                                            20 min
• Gooseboard!                                                  20 min

#### Slide 2 -Slide

Announcements
Don't forget GOT IT!

#### Slide 4 -Slide

Review (+hw-check)
1. A square field has an area of 400 m2. The sides get painted white for a tournament. The paint costs 3.50 per meter.
How much does it cost to paint all four sides?
2. Solve
3. Solve
4. Solve
2(40049)
(9)2
(37)2

#### Slide 5 -Slide

Review question 1:
A square field of grass has an area of

What is the perimeter?
400
m2
A
400 m
B
100 m
C
80 m
D
40 m

#### Slide 6 -Quiz

Review question 2:
A square field of grass has an area of

What is the length of one of the sides?
50
m2
A
7.07 m
B
12.5 m
C
25 m
D
It's impossible to tell

#### Slide 7 -Quiz

Review question 3:
Solve.

2(40049)
A
1.8
B
26
C
33
D
698

#### Slide 8 -Quiz

Review question 4:
Solve.

(9)2
A
3
B
9
C
81
D
Cannot be simplified

#### Slide 9 -Quiz

Review question 5:
Simplify.

(37)2
A
21
B
23.8
C
63
D
147

#### Slide 10 -Quiz

Intended Learning Outcomes
At the end of the lesson you can...
• Calculate squares of square roots
• Multiply and add square roots
• Simplify square roots by factorizing

#### Slide 11 -Slide

Intended Learning Outcomes
At the end of the lesson you can...
• Calculate squares of square roots
• Multiply and add square roots
• Simplify square roots by factorizing
Make notes!!!

#### Slide 12 -Slide

Squares of square roots
(37)2
(52)2
7(8)2

Letters
Square roots

#### Slide 14 -Slide

Just as with letters, only add like roots, otherwise not possible!
Letters
Square roots

#### Slide 15 -Slide

Simplify.

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

#### Slide 16 -Quiz

Simplify.

5797
A
47
B
-28
C
47
D
Cannot be simplified

#### Slide 17 -Quiz

Multiplying square roots
527
35410
8228

Simplify.

33224
A
527
B
572
C
627
D
672

#### Slide 19 -Quiz

Factorizing square roots
35410
33224

#### Slide 20 -Slide

Simplify and factorize. Take your time!

33224
A
362
B
236
C
12
D
62

#### Slide 21 -Quiz

Practice

(squaring square roots)
(factorizing square roots)

31
34, 37, 38, 39
41, 44, 45
Basic route
30def, 31abc
35, 36, 37, 38
42, 43, 44

#### Slide 22 -Slide

Check:
Simplify, then factorize. Take your time!

2627
A
18
B
92
C
182
D
93

Gooseboard!