Sewanhaka High School
Mrs. Lidowsky, Principal
Math 8
Mr. Long, Teacher
Period:______________
Date:________________________
Name:___________________________________
H.W. #1: Ditto
DO-NOW #1: Answer the following questions:
1) Bruce Wayne is working with the following
number pattern: 2, 4, 16, 256, ______
According to the pattern, which number would
come next and why?
2) Find the perimeter and area of a:
a) square whose each side equals 14 feet
b) rectangle whose length equals 8 cm and
width equals 6.5 cm
Topic: Algebra
Main Idea: Powers and Exponents
Aim:
RECALL
Monday, a tree grows three
apples. Everyday thereafter the
tree grows triple the amount of
apples the previous day. How
many apples will the tree have on
Friday?
NOTES
DAYS OF
WEEK
MONDAY
TUESDAY
WEDNESDAY
THURSDAY
FRIDAY
Factor
Form
Power of 3
(EXPONENTIAL FORM)
Go back to Thursday’s power of
3, 34, what is the 3 called and
what is the small 4 called?
What is 30 ?
What does the word evaluate
mean?
Evaluate:
Write each in exponential form:
3) 2 x 2 x 5 x 5 x 7 x 7 x 7 =
4) 3 x 2 x 2 x 3 x 3 x 2 x 3 x 2 x 3 =
5) 3 x 4 x 3 x 3 x 6 x 6 =
1) 73 =
2) 24 x 32 =
Value of
Power
Drill:
1) Express four to
the 5th power using
exponents.
2) Write 16 x 16 x 20 x 20
using exponents.
3) Evaluate 7 x 63 x 103.
4) ((2)(3))3 =
5) (22)3 =
SUMMARY:
A power is a ________________________________________________________________.
Exponential form means _____________________________________________________.
An exponent _______________________________________________________________________.
If time:
4) Write 7 x 7 x 7 x 7
using exponents.
8) Evaluate 62 x 23.
5) Write
2x3x3x2x2x7
using exponents.
6) Evaluate 43.
9) The average distance
from Jupiter to the Sun is
4.84 x 108 miles.
a) Write an expression
for 108.
10) Write as a product of prime factors using
exponents (Make a factor tree for each):
(a) 36
(b) 200
b) Evaluate 4.84 x 108.
7) Evaluate 92.