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  • Exams
    Nov 2019
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    Hong Kong

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  1. patrickjames


    I know some people who would be in the same year as you. My school doesn't offer spanish, only french or chinese but I don't think it would be massively different. There's been a huge thing at my school because the IB coordinator just changed the rules where you can only do ab initio if you have never done the language before. This was big because the entire class of about 10 students from ab mandarin had to go up to SL because they had all done chinese before. I think the point of ab initio is for students who have never done it before, but my entire class of about 7 students have done mandarin for at least a few years so I think it's up to your school and IB coordinator.
  2. patrickjames

    TOK Presentation

    Hello, I'm currently working on my TOK presentation and I showed a draft of it to my teacher and he said I should change my real life situation. For reference my CKQ is focusing on scientific knowledge and its capabilities. My real life situation is Stephen Hawking's latest book Brief Answers to the Big Questions, particularly focusing on the first chapter is there a god . He said my RLS should be based on the real world and I don't really understand what he means by that, given that the book is basically a book of Hawking's collated answers to the most common questions he is asked, with many of these answers coming from interviews. Can I get some people's thoughts on whether I should change it? Also, do I need to have a slide or a bit in my presentation where I talk about the extraction of my CKQ from my RLS? I know a few people in the year above me who didn't do this and still did well with the same teachers we have now but I'm unsure if this is a requirement. Thanks!
  3. patrickjames

    Maths IA Help

    Hi, Over the Christmas break, my maths teacher told us to come up with a "plan of attack" for our maths explorations. Our entire class isn't quite sure what that means so we're all at different stages of it. I was hoping to get some help with a few ideas that I have. 1. The Brachistochrone problem - I'm really interested in this problem but the problem I have with it is that I'm not sure if it is way out of the scope of the maths SL syllabus. All the IA's I've seen on this topic have been from HL so I know it isn't overdone but this has led me to wonder whether this lack of SL IAs on this topic is for a reason. From what I've seen this is primarily a question of calculus of variations and optimisation. For anyone who doesn't know, the brachistochrone problem was put forward by Johanne Bernoulli in 1696 and the problem goes like this: given two points A and B in a vertical plane, what is the curve traced out by a point acted on only by gravity, which starts at A and ends at B in the shortest time. 2. Minimising the drag force on a spacecraft - I have a lot of information on this but I haven't been able to find much specifically for IB maths. There is a bunch of stuff from NASA about this and I believe this is a question of calculus as well. Pretty sure I would go about this by finding the optimal size of a rocket to allow it to be as light as possible while carrying the most payload. When putting it like that it feels a bit simple. 3. Finding the optimal orbital transfer - I know the optimal orbital transfer is a Hohmann transfer but I've always been interested in space flight and thought it would be cool to work my way there. This is also a question of calculus of variations I believe and I haven't been able to find much in terms of this for IB maths. 4. Looking at Kepler's First and Second Laws - I know a bit about this from personal research and think it is really interesting. I was thinking of creating a star system with a planet orbiting around it, and then looking at how distance from the star affects the speed of said planet. I could using differentiation to see the relationship of this but other than that not really sure what else I could do. Any input is greatly appreciated, please let me know your thoughts on these. Thanks!

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