1. Can you see the difference between... (c) 2010 Language Science1 WhyWait™ Math Use your mouse or arrow keys to jump to the next slide.

2. (c) 2010 Language Science2...frowns and smiles? WhyWait™ Math

3. (c) 2010 Language Science3 Smiles start down with - WhyWait™ Math

4. (c) 2010 Language Science4 Smiles start down with - - - - WhyWait™ Math

5. (c) 2010 Language Science5 -...then go flat with... - WhyWait™ Math

6. (c) 2010 Language Science6 -...then go flat with... 0 0 - 0 WhyWait™ Math

7. (c) 2010 Language Science7 - 0...and end up with + - 0 WhyWait™ Math

8. (c) 2010 Language Science8 - 0...and end up with + + + - 0 + WhyWait™ Math

9. (c) 2010 Language Science9 - 0 + - 0 + - WhyWait™ Math

10. (c) 2010 Language Science10 - - 0 0 + + - Frowns start with + + WhyWait™ Math

11. (c) 2010 Language Science11 - - 0 0 + + - Frowns start with + + + + WhyWait™ Math

12. (c) 2010 Language Science12 - - 0 0 + + - + +...then... 0 WhyWait™ Math

13. (c) 2010 Language Science13 - - 0 0 + + - + +...then... 0 0 0 WhyWait™ Math

14. (c) 2010 Language Science14 - - 0 0 + + - + + 0 0 -...and end with a - WhyWait™ Math

15. (c) 2010 Language Science15 - - 0 0 + + - + + 0 0 -...and end with a - - - WhyWait™ Math

16. (c) 2010 Language Science16 - - 0 0 + + - + + 0 0 - - WhyWait™ Math

17. (c) 2010 Language Science17 - - 0 0 + + - + + 0 0 - - Smile WhyWait™ Math

18. (c) 2010 Language Science18 - - 0 0 + + - + + 0 0 - - Smile WhyWait™ Math Frown

19. GREAT JOB!!! (c) 2010 Language Science19 - 0 + -