70 likes | 228 Views
What do the following numbers have in common?. 36, 25, 49, 9, 4, 16, 64, 81. These are all numbers you get as a result of squaring another number (multiplying it by itself ). They are called perfect squares. What numbers can be multiplied by themselves to get the following numbers?
E N D
What do the following numbers have in common? • 36, 25, 49, 9, 4, 16, 64, 81
These are all numbers you get as a result of squaring another number (multiplying it by itself). They are called perfect squares. • What numbers can be multiplied by themselvesto get the following numbers? • 1) __ x __ = 49 • 2) __ x __ = 36 • *This number that you multiplied by itself to produce a product (answer to a multiplication question) is the square root of that product. • So the square root of 49 is _____ and the square root of 36 is_____
Square RootsA number that when doubled equals the given number.
Practice • Quiz yourself http://www.studystack.com/studytable-5224 • Practice with a game of tic-tac-toe http://www.funbrain.com/cgi-bin/ttt.cgi
Challenge • If you were asked to approximate the square root of 10 what would you do? • Take a few minutes brainstorm with your group.
Challenge Response • Use your knowledge that 3x3 gives you the perfect square 9, and 4x4 gives you the perfect square 16. • The square root of 10 is then likely a decimal in the 3’s. You could approximate that the square root of 10 is 3.1
Activity • Create a floor plan for a square space. You must tile your floor with a tile amount that amounts to a perfect square. Once complete writethe perfect square beneath your plan as well as the square root. Additionally you must label the dimensions of your square and label the room!