Exponential Notation (Day 1)

1. HOUSEKEEPING
MAP testing this week.
Unit 1 is now open.
• New lesson will open each day
• Pacing guide coming soon

2. EXPONENTIAL
NOTATION

3. GOAL FOR TODAY…….
Goal:
 Know what it means for a
number to be raised to a
power and how to
represent the repeated
multiplication symbol
 Know the reason for some
bases to require
parentheses
Agenda:
 What is
exponential
notation?
 How do you
determine the
sign of the
result?

4. There’s an easier way!
3 + 3 + 3 + 3 + 3 =
5 x 3 =
Multiplication is an easier way of adding
the same number with itself multiple
times!

5. What if you’re multiplying the same number
with itself multiple times?
3 • 3 • 3 • 3 • 3 =
Exponents are easier ways of multiplying
the same number with itself multiple
times!

6. Exponential Notation
35=243
Base
Exponent
Answer

7. Exponential Notation
In general, for an number x and any positive integer n
Base
Exponent

8. Practice Time!

9. Practice Time!

10. Practice Time!

11. Practice Time!

12. Practice Time!

13. Notice the use of parentheses in #2,3, and 4
Do you know why?

14. When should you use parentheses?
In cases where the base is either fractional
or negative.

15. If n is a fixed positive integer, then…..

16. If n is a fixed positive integer, then…..
Exponential Notation
“ x raised to the nth power”

17. Take a look at the resources listed in the
lesson folder!!
• Videos
• Practice Problems
Stop into math help @ 2:00 if you have
any questions this afternoon 
What now?

18. WRAP UP
It’s over
already : (
Why should we bother with
exponential notation? Why
not just write out the
multiplication?
Exponential notation is used
for recording scientific
notation of very large or very
small quantities. It is
indispensable for the clear
magnitude of a number.