Day 37__Section 1.1Perfect square and roots.notebook
November 03, 2015
­
Curriculum Outcome
(N5) Determine the square root of posive raonal numbers that are perfect squares. (N6) Determine an approximate square root of posive raonal numbers that are non‐perfect squares. (SS2) Determine the surface area of composite 3‐D objects to solve problems
(N4) **Explain and apply the order of operaons, including exponents, with and without technology.** 1
Day 37__Section 1.1Perfect square and roots.notebook
November 03, 2015
WARM UP
i) Determine the Area of the Shaded Squares
ii) Determine the perimeter a)
b)
Find the square root of the following:
a) 1 b) 121 c) 36
144 81
2
Day 37__Section 1.1Perfect square and roots.notebook
November 03, 2015
You Try!!!!
For each area of a sqaure find the length of its side
1)
2)
3)
4)
3
Day 37__Section 1.1Perfect square and roots.notebook
November 03, 2015
If the side length is 9
what is the area ?
4
Day 37__Section 1.1Perfect square and roots.notebook
November 03, 2015
To Determine if a Fraction is a Perfect Square
BOTH Numerator and Denominator MUST be Perfect Square Numbers
***Simplify fractions first ***
Is each fraction a perfect square? Explain
a)
b)
c)
5
Day 37__Section 1.1Perfect square and roots.notebook
November 03, 2015
Identifying Decimals that are Perfect Squares
1.44
Method 1
Write the decimal as a fraction
Method 2
Use a Calculator.
Use the square root button Simplify the fraction. Divide the numerator and denominator by 4.
1.44
= 1.2
1.44 =
= X
Since the sqaure root is a terminating decimal then 1.44 is a perfect square.
THUS 1.44 is a perfect square
6
Day 37__Section 1.1Perfect square and roots.notebook
November 03, 2015
Without a calculator
Determine if the decimal is a perfect square?
1.69
0.016
7
Day 37__Section 1.1Perfect square and roots.notebook
November 03, 2015
Calculate the number whose square root is Basically what is the area????
8
Day 37__Section 1.1Perfect square and roots.notebook
November 03, 2015
Solutions
This square is =
sqaure units
So is the square root of 9
Day 37__Section 1.1Perfect square and roots.notebook
November 03, 2015
You Try!!!
Calculate the number whose square root is :
1) 2)
3) 1.5
10
Day 37__Section 1.1Perfect square and roots.notebook
November 03, 2015
Page 11 & 12
5(aceg) without calculator 7 (without a calculator) 8 (a, c, d, f, g, i,j , l) without a calculator
8(b,e,h,k) with calculator
9 10(a, b)
14
16
11