Math ­ N&N ­ Square Roots.notebook
September 30, 2014
Square Roots
Learning goal: determine the square roots of perfect squares
and estimate to find the square roots of numbers
ACTIVATION
Using square tiles, create squares with increasing areas. Record the length, width and area of each square you create.
Sep 14­8:10 PM
Sep 30­8:50 AM
1
Math ­ N&N ­ Square Roots.notebook
September 30, 2014
= Square root
9
100
49
Sep 14­8:29 PM
MINDS‐ON
The floor mat in gymnastics is a square with an area of 144 m2 . What are its dimensions?
What I'm thinking is: ___ x ___ = 144
Because A = l x w
Sep 14­8:16 PM
2
Math ­ N&N ­ Square Roots.notebook
September 30, 2014
MINDS‐ON
The area of a floor mat is 82 m2. About what are its dimensions?
Sep 14­8:16 PM
Sep 30­9:10 AM
3
Math ­ N&N ­ Square Roots.notebook
September 30, 2014
MINDS‐ON
The area of a baseball field is 3000 m2. About what are its dimensions?
Sep 14­8:16 PM
Sep 30­9:30 AM
4
Math ­ N&N ­ Square Roots.notebook
September 30, 2014
EXIT TICKET
1) Explain two different ways of solving 225.
2) How do you know that 71 is between 8 and 9.
Sep 14­8:32 PM
5