1 / 32

PRE-ALGEBRA & MathLine

Pre-Algebra. PRE-ALGEBRA & MathLine. Pre-Algebra. Pre-algebra is difficult because of the confusing language. Equality Principle Balancing an Equation Definition of a Variable, etc. Pre-Algebra. MathLine makes Algebraic concepts EASY TO UNDERSTAND!. Pre-Algebra.

Download Presentation

PRE-ALGEBRA & MathLine

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Pre-Algebra PRE-ALGEBRA & MathLine

  2. Pre-Algebra • Pre-algebra is difficult because of the confusing language. • Equality Principle • Balancing an Equation • Definition of a Variable, etc.

  3. Pre-Algebra MathLine makes Algebraic concepts EASY TO UNDERSTAND!

  4. Pre-Algebra MathLine makes Algebraic concepts EASY TO UNDERSTAND! By introducing abstract ideas with simple language

  5. Pre-Algebra Let’s solve 2x + 5 = 17

  6. Pre-Algebra So ask the student, what do we know in this sentence: 2x + 5 = ? 17 So put 17 on MathLine We know our sum is17

  7. Pre-Algebra With 2x + 5 = 17 We know we added 5 to 2x to get 17

  8. Pre-Algebra So ask, “If we added 5 to get 17, can we subtract 5 from 17?”

  9. Pre-Algebra If we added 5 to get 17 Can we subtract 5?

  10. Pre-Algebra So subtract 5 from 17… 5 4 3 2 1

  11. Pre-Algebra So subtract 5 from 17…

  12. Pre-Algebra 2x = 12 So ask, “What number times 2 equals 12?”

  13. Pre-Algebra There are two ways of finding X for 2x = 12

  14. Pre-Algebra Divide by 12 by two’s..

  15. Pre-Algebra Divide by 12 by two’s..

  16. Pre-Algebra Divide by 12 by two’s..

  17. Pre-Algebra Divide by 12 by two’s..

  18. Pre-Algebra Divide by 12 by two’s..

  19. Pre-Algebra Divide by 12 by two’s..

  20. Pre-Algebra Divide 12 by two’s.. 1 2 3 4 5 6

  21. Pre-Algebra Or divide 12 into two GROUPS… 6 6

  22. Pre-Algebra Either way x = 6 6 6

  23. Pre-Algebra On paper the Algebra looks like this…

  24. Pre-Algebra To get x by itself subtract 5 from both sides of the equation. 2x + 5 = 17 – 5 –5 This is the Equality Principle

  25. Pre-Algebra What is done to one side of the equation… must be done to the other side to keep it equal.

  26. Pre-Algebra 5’s cancel out 2x + 5 = 17 – 5 –5

  27. Pre-Algebra and 17 – 5 equals 12 2x = 17 - 5

  28. Pre-Algebra and 17 – 5 equals 12 2x = 12

  29. Pre-Algebra 2x = 12 So divide by 2 on each side 2 x12 2 2 = Or 2 x ÷ 2 = 12÷ 2

  30. Pre-Algebra So, x = 12÷ 2 Or x = 6

  31. Pre-Algebra Using MathLine to introduce Pre-Algebra is effective and simple.

  32. Pre-Algebra MathLine makes Pre-Algebra Easy to visualize And keeps the confusing language simple.

More Related