1 / 30

A Level Computer Science Exam Technique

A Level Computer Science Exam Technique. paullong.net Training. Keeping up-to-date. Twitter: @paullongnet 60 second articles Cover: ethical issues legal issues cultural issues environmental issues privacy issues development in technology. AQA Consequences.

andrewp
Download Presentation

A Level Computer Science Exam Technique

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. A Level Computer ScienceExam Technique paullong.net Training

  2. Keeping up-to-date • Twitter: @paullongnet • 60 second articles • Cover: • ethical issues • legal issues • cultural issues • environmental issues • privacy issues • development in technology

  3. AQA Consequences

  4. OCRLegal, moral, cultural and ethical issues

  5. EduqasEconomic, moral, legal and cultural issues

  6. OCR P1 Q8 2017 – 9 marks

  7. AQA P2 Q7 2017 – 12 marks

  8. Eduqas AS P2 Q3 – 8 marks

  9. Eduqas AS P1 2016 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 q4 - 12 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%

  17. AQA P2 q5.2 - 1 mark

  18. AQA P2 q5.2 - 1 mark

  19. AQA P2 q5.3 - 2 marks

  20. AQA P2 q10.1 - 2 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 • Look at number of marks 29

  24. Eduqas P1 q5a 30

  25. Eduqas P1 q8 31

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

  27. Resolving many to many relationships X 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” • 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)

More Related