1. Looking For Pythagoras
Radical Golf
Professional Golfer: John Daly

2. 12/16: Warm-up
Perfect Square Tables
Copy the perfect square tables to the left one time and copy the scorecard below TWICE. 12 1 22 4 32 9 42 16 52 25 62 36 72 49 82 64 92 81
102
100
112
121
122
144
132
169
142
196
152
225
162
256
172
289
182
324
192
361
202
400
Hole
Square
Estimate
Actual
Score
Example 70
8.5
8.4 2 1 3 4 5 6 7 8 9
TOTAL

3. Radical Golf: Estimate square roots to one decimal place
You get a hole in one (1 pt) if right on.
If 1 decimal off, you score a 2.
If 2 decimals off, you score a 3. If more than 10 off, 10 is highest score.
Goal is to score the lowest over 18 holes!
No calculators allowed
Individual work/game
Individual scores kept in notebook

4. Practice 12 1 22 4 32 9 42 16 52 25 62 36 72 49 82 64 92 81
102
100
112
121
122
144
132
169
142
196
Estimate the square root below to 1 decimal place.

5. HOLE # 1
= 1.7 =

6. HOLE # 2
= 5.7 =

7. HOLE # 3
= 9.6 =

8. HOLE # 4
= 4.6 =

9. HOLE # 5
= 7.6 =

10. HOLE # 6
= 6.4 =

11. HOLE # 7
= 10.4 =

12. HOLE # 8
= 11.4 =

13. HOLE # 9
= 3.3 =

14. Total your score on the “front 9”

15. HOLE # 1
= 8.7 =

16. HOLE # 2
= 12.4 =

17. HOLE # 3
= 8.2 =

18. HOLE # 4
= 9.6 =

19. HOLE # 5
= 11.3 =

20. HOLE # 6
= 13.7 =

21. HOLE # 7
= 17.7 =

22. HOLE # 8
= 19.6
= 19,

23. HOLE # 9
= 18.8 =

24. Add up your score on the “back 9” AND for the entire round (total score)

25. HOMEWORK

26. Radical Golf. Estimate to one decimal place square roots
Radical Golf. Estimate to one decimal place square roots. Make an 18 hole scorecard. Write down students’ guess. They get a hole in one (1 pt) if right on. If they are 1 decimal off, then they score a 2. If 2 decimals off, then a 3. If more than 10 off, 10 is highest score.
Goal is to score the lowest over 18 holes. Kids have fun with it.