Math ­ N&N ­ Powers.notebook
September 22, 2014
Powers
Learning goal: express repeated multiplication using exponents
Warm‐Up
1) 10 x 10
2) 3 x 9
3) 4 x 8
4) 9 x 6
5) 2 x 0
6) 8 x 7
7) 3 x 4
8) 11 x 6
9) 5 x 5
10) 1 x 1
11) 6 x 4
12) 3 x 8
13) 9 x 8
14) 12 x 2
15) 16 x 2
Sep 15­7:51 PM
Powers
Learning goal: express repeated multiplication using exponents
ACTIVATION
Solve the following multiplication sentences:
a) 3 x 3
b) 3 x 3 x 3
c) 3 x 3 x 3 x 3
d) 10 x 10
e) 10 x 10 x 10
f) 10 x 10 x 10 x 10
What do you notice about each product?
Sep 15­7:51 PM
1
Math ­ N&N ­ Powers.notebook
September 22, 2014
MINDS ON
As I was going to Halifax,
I met a man with 7 sacks,
Every sack had 7 cats,
Every cat had 7 kits,
Man, kits, cats, and sacks,
How many were going to Halifax?
Sep 15­8:20 PM
CONSOLIDATION
Express the following using repeated multiplication:
45
3.43
79
Solve each power.
Sep 15­8:24 PM
2
Math ­ N&N ­ Powers.notebook
September 22, 2014
EXIT TICKET
a) What is the area of a 5­by­5 square?
b) Write a power to represent the area of the square.
c) Why is the expression in part (b) read as "5 squared?"
d) Why do you think 53 is read as "5 cubed?"
Sep 15­8:25 PM
3