Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
81                        Squares     What is this shape?     How do you know?     What is the area?     How many small sq...
Perfect Square Activity
What is a Root?
81                       Squares     What is a root?     What is the area of     this square?     What is the root?     Is...
Perfect Squares•   0 x 0 = 02 = 0•   1 x 1 = 12 = 1        -1 x -1 = (-1)2 = 1•   2 x 2 = 22 = 4        -2 x -2 = (-2)2 = ...
4     =216    =425    =5100   = 10144   = 12
Notes• The root of a square (square root) is equal  to the length of one side of the square• All squares have two roots, o...
Perfect Squares1        64     2254        81     2569        100    28916       121     32425       144     36136       1...
Estimating Non-Perfect Squares    • Squares that do not have an integer for a base are    called non-perfect squares. For ...
Non-Perfect Squares
Let’s PracticePlot:1.      6            4.   152.   30              5.   903.   55              6.   750       1   2    3 ...
Perfect Cubes
Perfect Cubes• How do you find the volume of a cube?                           2cm
Perfect Cubes• How do you find the root of a cube?                             8cm3
Perfect Cubes• What is the volume of this cube?• What is the root of this cube?
Perfect Cubes• What is the volume of this cube?• What is the root of this cube?
Perfect Cubes• What is the volume of this cube?• What is the root of this cube?
Let’s Practice
Notes
Perfect Cubes1              -18              -827             -2764             -64125            -125216            -2163...
Upcoming SlideShare
Loading in …5
×

Squares and square roots edmodo 2012 13

  • Be the first to comment

Squares and square roots edmodo 2012 13

  1. 1. 81 Squares What is this shape? How do you know? What is the area? How many small squares are inside the large square? What is the perimeter?
  2. 2. Perfect Square Activity
  3. 3. What is a Root?
  4. 4. 81 Squares What is a root? What is the area of this square? What is the root? Is there any other number 4 Multiplied by itself that equals 16?
  5. 5. Perfect Squares• 0 x 0 = 02 = 0• 1 x 1 = 12 = 1 -1 x -1 = (-1)2 = 1• 2 x 2 = 22 = 4 -2 x -2 = (-2)2 = 4• 3 x 3 = 32 = 9 -3 x -3 = (-3)2 = 9• 4 x 4 = 42 = 16 -4 x -4 = (-4)2 = 16• 5 x 5 = 52 = 25 -5 x -5 = (-5)2 = 25• 6 x 6 = 62 = 36 -6 x -6 = (-6)2 = 36• 7 x 7 = 72 = 49 -7 x -7 = (-7)2 = 49• 8 x 8 = 82 = 64 -8 x -8 = (-8)2 = 64• 9 x 9 = 92 = 81 -9 x -9 = (-9)2 = 81• 10 x 10 = 102 = 100 -10 x -10 = (-10)2 = 100
  6. 6. 4 =216 =425 =5100 = 10144 = 12
  7. 7. Notes• The root of a square (square root) is equal to the length of one side of the square• All squares have two roots, one positive and one negative• Perfect squares have integers for roots• A Radical is the symbol we use to identify roots• A Radicand is the number or variable inside the radical 25
  8. 8. Perfect Squares1 64 2254 81 2569 100 28916 121 32425 144 36136 169 40049 196 625
  9. 9. Estimating Non-Perfect Squares • Squares that do not have an integer for a base are called non-perfect squares. For example 20 is a non-perfect square because no integer multiplied by itself equals 20. • We estimate non-perfect squares by finding which perfect squares they are between: 16 20 25 4 4.5 50 1 2 3 4 5 6 7 8 9 10 11 12 16 25
  10. 10. Non-Perfect Squares
  11. 11. Let’s PracticePlot:1. 6 4. 152. 30 5. 903. 55 6. 750 1 2 3 4 5 6 7 8 9 10
  12. 12. Perfect Cubes
  13. 13. Perfect Cubes• How do you find the volume of a cube? 2cm
  14. 14. Perfect Cubes• How do you find the root of a cube? 8cm3
  15. 15. Perfect Cubes• What is the volume of this cube?• What is the root of this cube?
  16. 16. Perfect Cubes• What is the volume of this cube?• What is the root of this cube?
  17. 17. Perfect Cubes• What is the volume of this cube?• What is the root of this cube?
  18. 18. Let’s Practice
  19. 19. Notes
  20. 20. Perfect Cubes1 -18 -827 -2764 -64125 -125216 -216343 -343512 -512729 -7291000 -1000

×