1. Concussion App Objectives: 1.Explain how sequence, selection, and iteration are building blocks of algorithms 2.Create equations with two or more variables to represent relationships among quantities.

2. Warm-Up C = 3V + 3B + 2D + 2M 1.Solve for C given the following variable values: a)V = 7B = 4D = 8M = 6 b)V = 9B = 8D = 7M = 4 2. Describe the relationship between variables V, B, D, & M. a)Do they all affect C equally? b)How does V affect C? c)How does V’s effect on C compare to B’s? d)How does V’s effect on C compare to M’s?

3. Warm-Up C = 3 V + 3 B + 2 D + 2 M Solve for C given the following variable values: 1. V = 7B = 8D = 8M = 6 2. V = 9B = 4D = 7M = 4 3. V = 6B = 6D = 9M = 8

4. Concussion Factors What factors go into diagnosing a concussion? http://www.youtube.com/watch?v=k1qvcw-zqtQ

5. Concussion Symptoms Vomiting/Nausea Balance problems/clumsy Drowsy/dazed Memory loss before and after event

6. Who should be able to play? Person 1 Vomit: Spit Balance: Slightly off- balance Drowsy: active, wants to play, eyes slightly closed Memory: remembers everything, but slow response Person 2 Vomit: None Balance: ok Drowsy: tired, wants to rest Memory: remembers before and hazy about after Person 3 Vomit: Chunks Balance: needs to lean on chair Drowsy: Wants to close eyes Memory: Slow to respond

7. Who should be able to play? Person 1 Vomit: Spit Balance: Slightly off- balance Drowsy: active, wants to play, eyes slightly closed Memory: remembers everything, but slow response Person 2 Vomit: None Balance: ok Drowsy: tired, wants to rest Memory: remembers before and hazy about after Person 3 Vomit: Chunks Balance: needs to lean on chair Drowsy: Wants to close eyes Memory: Slow to respond How do we compute a rating (0 to 100) for each person?

8. Who should be able to play? Person 1 Vomit: Spit Balance: Slightly off- balance Drowsy: active, wants to play, eyes slightly closed Memory: remembers everything, but slow response Person 2 Vomit: None Balance: ok Drowsy: tired, wants to rest Memory: remembers before and hazy about after Person 3 Vomit: Chunks Balance: needs to lean on chair Drowsy: Wants to close eyes Memory: Slow to respond We need numbers!

9. Computing a Problem 1.Identify Factors: Variables 2.Quantify: Numbers & Units 3.Express the Relationship: Equation 4.Algorithm: How my mind does it 5.Coded Algorithm: How computer does it

10. We need to Quantify! Person 1 Vomit: 2 Balance: 6 Drowsy: 5 Memory: 6 Person 2 Vomit: None Balance: ok Drowsy: tired, wants to rest Memory: remembers before and hazy about after Person 3 Vomit: Chunks Balance: needs to lean on chair Drowsy: Wants to close eyes Memory: Slow to respond Rate the factors on a scale from 0-10. 0 = best 10 = worst

11. We need to Quantify! Person 1 Vomit: 2 Balance: 6 Drowsy: 5 Memory: 6 Person 2 Vomit: None Balance: ok Drowsy: tired, wants to rest Memory: remembers before and hazy about after Person 3 Vomit: Chunks Balance: needs to lean on chair Drowsy: Wants to close eyes Memory: Slow to respond But how do you rate vomit?

12. Selection If vomit >= 300 Then vomit = 10 ElseIf vomit >= 250 Then vomit = 9 Etc…

13. Who should be able to play? Person 1 Vomit: Spit Balance: Slightly off- balance Drowsy: active, wants to play, eyes slightly closed Memory: remembers everything, but slow response Person 2 Vomit: None Balance: ok Drowsy: tired, wants to rest Memory: remembers before and hazy about after Person 3 Vomit: Chunks Balance: needs to lean on chair Drowsy: Wants to close eyes Memory: Slow to respond Do all the factors have the same importance?

14. Priority Put the four factors in order from most to least significant. Vomit, Balance, Drowsy, Memory 1. _________________ (most important) 2. _________________ 3. _________________ 4. _________________ (least important)

15. Weighting the Priorities You have a total of 10 weights to use. Allocate the weights based on priority. 1. Memory x3 2. Balance x 3 3. Vomit x2 4. Drowsy x2 Adds up to 10 ____ 10

16. Equation to Rate Concussion Memory: ____ Balance: ____ Vomit: ____ Drowsy: ____ x ____ = ____ ++++++ Rating: _________ 0 to 10 Weight Total

17. Sample Calculation Memory: 9 Balance: 6 Vomit: 7 Drowsy: 5 x 2 = 18 x 2 = 12 x 4 = 28 x 2 = 10 ++++++ Rating: 68 0 to 10 Weight Total

19. Sequence TextWindow.WriteLine(“How much vomit?") vomit = TextWindow.Read() VS. vomit = TextWindow.Read() TextWindow.WriteLine(“How much vomit?")

20. Selection If repeat = "y" Then Goto Start EndIf Checks if the user types in “y”

21. Selection If repeat = "y" Then Goto StartElse Program.End() Program.End() EndIf Checks if the user types in “y”

22. Iteration If repeat = "y" Then Goto Start EndIf Checks if the user types in “y” Goes back to beginning and repeats program ‘top of program code Start: GraphicsWindow.Draw...

23. Exit Card 1.Write down the equation you used to rate a concussion. 2.Write example sets of inputs for two athletes and calculate the rating. 3.Describe the relationship between the input variables. a)How does each affect the rating? b)Compare one variable’s effect to another.