Answer Key Final

Advice to Giannis: When you are grading, where ever possible, be lenient. When you have a choice to take more or less points off - you should usually take less points off. The scores will not be especially high as it is, so don't feel like you have to be a real strict grader. Students have worked pretty hard this summer - so it is time to be a little bit nice.

Part A

1. router (or, gateway) 2. motherboard 3. blog 4. resolution 5. virus 6. HTML 7. presentation software 8. search engines 9. boot

Part B

1. B 2. N 3. H 4. K 5. A 6. J 7. C 8. P 9. G 10. O 11. F 12. D
Part C

1. D 2. A 3. D 4. D 5. B 6. E 7. A 8. C 9. C 10. D 11. B 12. A

Part D

1. = D7 - C7

2. = F5 / E5

3. = SUM(F4:F8)

4. = AVERAGE(G4:G8)

5. = IF(G4>$G$2,"Stand Out","Laggard" [only give one point if $'s missing on $G$2 or incorrectly added on to G4]

Part E

1. Beech Bark Disease Beech 1932 Moderate 60 33 41 112

2. Chestnut Blight Chestnut 1904 Dire 234 412 50 253

3. Emerald Ash Borer Ash 2002 Dire 251 314 202 912

4. E4:G6

5. B4:B6

Part F

1. 200 2. ROUND(Precise * 100) / 100 3. 40

4.
IF Month=June OR Month>July
Say It is Hot! for 2 secs

5. Reeses 6. 8 7. Set CasinoNum to pick random 35 to 72

repeat until Item = NO MORE
ask Enter item to buy (No More when done): and wait

       set Item to answer
   If not Item = NO MORE
    add Item to Groceries

9. TimeScheduled > 90 (or equivalent reversed condition, TimeScheduled = 90 is also acceptable)

Part G

fix Repeat Until condition to use right sentinel - repeat until Incar = 0
convert set Collection block into a Change. change Collection by InCar * 10

Here is what a correct script looks like:

II.

swap the two when blocks So Lion script should begin: when I receive Hey Lion :: Elephant script should begin when space key pressed
change the ask in the Elephant script to a say - which converts it from input to output. So it becomes say Are you a friendly lion? for 2 secs
change the repeat in the Elephant script to go around the correct amount of times. Correct is: repeat 3

Here is what a correct looks like:

Part H

1. 20

          5
          10
          15
          5

(1 pt for each line. One pt off if one extra line; Two pts off if two or more extra lines.)

2.       10
         30
         50
         70
         90

(1 pt for each line. One pt off if one extra line; Two pts off if two or more extra lines.)

Part A: 800

Part A: 850

                        3
                        Part B: 950
                        Part B: 1000

(1 point for each line. One pt off if one extra line; Two pts off if two or more extra lines.)

Very Expensive
Just Resting

I Always Skip That

(2 pt for first line. 1 pt for second line. 2 pts for third line. One pt off if one extra line; Two pts off if two or more extra lines.)

Part I

Note: accept any of the following for the repeat until condition
CardAmount < 0
CardAmount = 0
CardAmount < 0 OR CardAmount = 0
CardAmount = 0 OR CardAmount < 0
NOT CardAmount > 0

(possible answer)

Advice on grading

15 Points if perfect. 13-14 points if minor syntax or logic errors. 9-12 if one significant piece missing. 5-8 if several parts right or close (structure of loop, calculations) 0-4 if very little right, or if code uses little real Scratch.

Remember, wherever possible, be lenient.

Part J

(possible answer)

Advice on grading.

15 Points if perfect. 13-14 points if minor syntax or logic errors. 9-12 if significant piece missing. 5-8 if several parts right or close (repeat #, lists used correctly, structure of loops, IF) 0-4 if very little right, or if code uses little real Scratch.
Remember, wherever possible, be lenient.