1. A Level Computer Science Exam Technique
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3. AQA Consequences

4. OCR Legal, moral, cultural and ethical issues

5. Eduqas Economic, moral, legal and cultural issues

6. OCR P1 Q – 9 marks

7. AQA P2 Q – 12 marks

8. Eduqas AS P2 Q3 – 8 marks

9. Eduqas AS P Q15 – 12 marks

10. http://tiny.cc/CyberCockroach - life saving cyborg cockroaches! (4:31)

11. http://tiny.cc/ThinkingArm - first paralysed man to move his arm by thinking about it (3:04)

12. AQA P2 q marks

13. Plan the essay

14. Well structured essay Structure the essay logically following a plan
Cover all areas asked for
Use examples
Describe how the technology would be used in context
eg RFID tags use short-range wireless transmission so the fridge can identify items that are in the fridge by the data stored on each tag
Explain advantages, eg:
RFID tags do not require a power source
The user would not need to be involved (contrast with barcode)
Data could include use by date (contrast with barcode)
Explain disadvantages, eg:
Low cost consumable products don’t usually have RFID tags (contrast with barcode), although this could change in the future
Will need an alternative method to deal with untagged products

15. Answering a hard question
Question paper has 120 marks
It is a 2 hour exam
How many minutes per mark?
Question 2b is worth 8 marks
You’re struggling to work out the answer
Option 1: You decide to miss out the question
How many marks will you lose?
Option 2: You spend 15 minutes trying to answer the question
How many marks will you lose if you answer the question?

16. Maximise marks, NOT maximum marks
Traditionally
80% = A
70% = B
60% = C
If you are aiming for a grade A, you could afford to lose 20% of the marks
BUT what are the marks really?
In 2018, Grade A:
AQA 66/100 and 65/100 (66% and 65%)
OCR 89/140 and 94/140 (64% and 67%)
Eduqas 65/100 and 66/100 (65 and 66%)
So if aiming for grade A – 35% of marks not needed
You do NOT have to aim for all marks
Do NOT be afraid of missing a question out
Compare with OCR 2018:
Chemistry = 80% and 73%
English = 75%
English Lit = 88%
Maths = 61 – 75%
Psychology = 74% and 71%
Answer on sheets
For question 3, steal each other’s answers after a minute
Students to read out answers aloud
Discuss if too much or too little information given in each answer

17. AQA P2 q mark W G

18. AQA P2 q mark W G Y B

19. AQA P2 q marks

20. AQA P2 q marks

21. Documenting errors Keep a record of regular mistakes that you make
Learn from your mistakes
Be conscious not to repeat them in the real exam
Are you reading the question carefully
Always go back to the question to check you have answered it fully
Mistakes are HUMAN nature

22. Using a template structure
Look at number of marks available
Focus on the command/key words to see what you are being asked to do:
Describe
Reasons
Advantages
Explain
Evaluate
Don’t forget EXAMPLES

23. Eduqas P1 q9b Problem Reason Look at number of marks
Could run out of memory (stack space)
because there are a high number of recursive calls
Difficult to debug if producing incorrect results
because it’s difficult to determine which recursive call produced the error 29

24. Eduqas P1 q5a Explanation / reason Constants
Once the value is set, it can be used several times throughout the programme. If a change needs to be made to the value, it only has to be done once. Eg VAT = 20%
Meaningful variable names
This makes the program more readable because it is clear what the variable is for. Eg Surname[counter] ← USERINPUT is easier to understand than x[i] ← USERINPUT
Annotation
It helps the programmer understand what the purpose of each part of code was for, and for other programmers to understand it too. Eg Loop to request surnames from user 30

25. Eduqas P1 q8 Description Example related to STOCK CONTROL
Perfective maintenance is used to improve the functionality of a system.
For example, adding a facility to automatically re-order products from suppliers.
Corrective maintenance is about fixing bugs in a system.
For example, some re-order reports may be including stock that has already been re-ordered but not yet been delivered.
Adaptive maintenance is about adapting the software due to an external change.
For example, the way stock is categorised in the store is changed and the software needs updating to accommodate the new categories. 31

26. OCR P1 q3c Follow standard rules for standard questions
Remember to include DEGREE of relationships

27. Resolving many to many relationshipsX
ENTITY A
Primary Key A
Attribute A1
Attribute A2
ENTITY B
Primary Key B
Attribute B1
Attribute B2
Use the primary keys from the original entities as foreign keys in the link table
ENTITY A
Primary Key A
Attribute A1
Attribute A2
LINK TABLE
Primary Key Lk
Foreign Key A
Foreign Key B
ENTITY B
Primary Key B
Attribute B1
Attribute B2
Remember the many side of the relationship goes with the foreign keys
Therefore, the foreign keys always go in the link table

28. OCR P1 q4d – 3 marks Avoid: it‘s “faster” it‘s “cheaper”
what is it faster than?
why is it faster?
it‘s “cheaper”
what is it cheaper than?
what makes it cheaper
it‘s “more robust”
what is it more robust?
why is it more robust?
it‘s “smaller”
what is it smaller than?
why is being smaller an advantage?

29. Exam technique summary
Read questions and instructions carefully
A highlighter pen can be your best friend
Don’t panic
Don’t be afraid to miss out a question
Look at marks available
Avoid ‘easier’, ‘faster’, ‘more efficient’, ‘better’
Give full answers to written questions
Include extra information if time
Give examples related to the scenario
Draw diagrams if appropriate

30. http://tiny.cc/WasteAfrica - computing waste in Africa (4:09)