4E Roots

Good morning!
Schedule: 
  • Learning goals
  • What did we do last time
  • Roots
  • Worksheets
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Slide 1: Diapositive
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Good morning!
Schedule: 
  • Learning goals
  • What did we do last time
  • Roots
  • Worksheets

Slide 1 - Diapositive

Learning goals 
At the end of this lessons I can:
  • Explain what a root is 
  • Find the roots of perfect square and cubic numbers
  • Use the correct order of operations including roots

Slide 2 - Diapositive

What did we do last time?

Slide 3 - Carte mentale

Name a square number
(NOT in index form)

Slide 4 - Carte mentale

4E Roots 
16 is a squared number
16 = 42
The square root uses the opposite operation



16=
Find the squared numer that is equal to the number under the square root

Slide 5 - Diapositive

4E: Roots
Can we do the same thing with cubic numbers


What would this be called?


What would this look like (notation)?  


See if you can find the answers to these questions, use your book or the internet!!

Slide 6 - Diapositive

4E: Roots 
Simplify: 

49=
8=
3
1=
5

Slide 7 - Diapositive


36=

Slide 8 - Question ouverte

4E: Roots
You can not take the Square root of a negative number 

(-6)2 = -6 ⋅ -6 = 
62 = 6 ⋅ 6 = 


36

Slide 9 - Diapositive

Order of operations
rackets
E xponents
D ivision
M ultiplication
A ddition
S ubtraction

{
{
From left to right!
From left to right!
Where do Roots go in the order of operations? 

Slide 10 - Diapositive

4E: Roots 
The area of the garden is 25 m2

What is the length of each side? 
?
Remember: 
Area = length ⋅ width 

Slide 11 - Diapositive

Worksheet
I have 3 different worksheets. 

Worksheet 1          worksheet 2         Worksheet 3


"This is my first time seeing roots"
"I can do simple sums with roots "
"I want to really challenge myself"

Slide 12 - Diapositive