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    May 2015
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  1. Yup I got 4.87!!
  2. I'm from TZ1! I thought the exam was pretty challenging. Specifically that last question which was worth 8 marks.
  3. Wait so Msj Chem is saying only periodic table for paper 1, and IbTrojan is saying data booklet for all three papers. Who is correct here??
  4. As we are nearing the chem exam, I have a question. In paper 1, are we provided with the relevant equations on page 1 of the data booklet? Also, I'm 90% sure that the 2nd equation on the left column has a mistake, it should be + between the two terms on the right hand side of the equation. This is the Arrenius equation in the form y=mx +b. Thanks!
  5. To be honest, I would just relax!!! The 2 years in itself will allow you to get everything you need to learn and get done for the IB. But if you reallly want to prepare beforehand, look up some subject specific youtube videos. For example, Richard Thornley is great for IB Chem. Anyway, try to enjoy your summer because you'll be working hard when IB starts!
  6. I thought TZ1 was pretty easy!!! Section B 6 and 7 were amazing. I have to agree though that there were tricky questions in the Paper 1. Like the auxin one
  7. Hello IBers, I was wondering if anyone of you guys would be willing to review and provide feedback on my tok essay. It would be greatly appreciated. Thanks!
  8. Hello IBers, I need help on some things about my chemistry lab: - Let's say I'm measuring how temperature changes over time in a reaction between HCl and Na. Do I have to include an uncertainty for my time? By the way, I was using a vernier lab quest to record this data. - Also, on logger pro, how do I add error bars for my data points using the uncertainty of the temperature probe used in the experiment? I know that the uncertainty of the probe is +/- 0.2 degrees celcius, however, I'm not too sure how to add error bars that also consider the standard deviation. Help would be much appreciated! :)
  9. Thank you very much! Your comment very much helped me!
  10. Hello IBers, I have recently finished my Math EE. However, my word count is over the 4000 word limit. I have found that I used many textboxes so that I can label my screen captures with "Figure x". Also, I used many symbols such as " C1 " (to label the objects in a plane) since my topic is in geometry. I was wondering about what defines a "word" in a maths essay. I have read the EE guidelines which say that the limit does not include: · the abstract· acknowledgements· the contents pages· maps, charts, diagrams, annotated illustrations and tables· the references/bibliography· appendices· EQUATIONS, FORMULAS, AND CALCULATIONS In maths, C1 isn't an equation nor is a formula; I have used it to denote an object in a geometric plane. Therefore, does this count in the word count? Also, I don't see anything about captions/textboxes not being included in the word limit. Help would be very much appreciated.
  11. Hello fellow IBers, I have recently finished my EE on mathematics and wondered whether anyone of you guys would like to read over it and provide me some feedback. My essay is about the Apollonius' problem in which one is to construct a circle tangent to three other circles. Help would be much appreciated.
  12. Hey guys, The title of of this post might make you think that I'm asking you guys to solve the problem I'm basing my EE on. That's not true; I just wanted your attention Anyways, I'm doing my EE on Apollonius' Problem of Tangency and it's heavily based on classical geometry; specifically circular geometry. However, the IB math curriculum does not have a geometry unit. What I need help with is to find resources that wil aid me in learning the material/content required to tackle this famous problem. In other words, I want to know what specific content of geometry I should know before attempting to solve the problem. A question related to my EE: would my Research Question then be the question/statement of the problem itself? Thanks to everyone!
  13. Those ideas are great but I think you should do something with applications, because I've heard marking for Math EE's is quite hard. What I've seen so far is people trying to solve mathematical problems from Olympiads. Maybe you could look into matrices, since they're off syllabus now If you are into calculus however, you could look at what you said, Taylor series and stuff, but I'm not sure what you want your RQ to actually be. Sorry that wasn't really helpful. Thing is, I thought I'd do a math EE but I switched to economics. And I absolutely love math but I couldn't hit a problem I really wanted to solve for a Math EE Hey Ossih! Thanks for the comment and yes, I actually think that it's better to look at past questions from math contests such as the Olympiad. However, I'm having trouble finding a question that would actually be suitable for an EE. This is most likely due to the fact that I have no idea how to go about solving questions that I see in the olympiads. Also, is learning matrices hard, or could I learn it in some weeks?? Thanks a lot! That's a good point. Maybe, a good place to start is finding a book like 100 Advanced Mathematical Problems (I have something like that, I'll PM it to you, it didn't help me though) and seeing if you find something. There's a lot of trig involved in the problems that I found in that book. Another thing, matrices can be easily learnt in a few weeks. What you want to do with them however, is another thinking exercise I've seen applications of matrices to transformations. I don't have much to say haha. The ones I know they did from our school are on cryptography, and that's so cliché. Anyways, I'll PM you and see if you get any inspiration Hey Ossih! I looked over the entire book but I don't think that the questions will be ones I can explore and write an EE in 2 months. They appear to be problems that university level students can explore... However, I looked at the math olympiad collection and found some: A soldier needs to check on the presence of mines in a region having the shape of an equilateral triangle. The radius of action of his detector is equal to half the altitude of the triangle. The soldier leaves from one vertex of the triangle. What path should he follow in order to travel the least possible distance and still accomplish his mission? Five students, A;B;C;D;E; took part in a contest. One prediction was that the contestants would finish in the order ABCDE: This prediction was very poor. In fact no contestant finished in the position predicted, and no two contestants predicted to finish consecutively actually did so. A second prediction had the contestants finishing in the order DAECB: This prediction was better. Exactly two of the contestants finished in the places predicted, and two disjoint pairs of students predicted to finish consecutively actually did so. Determine the order in which the contestants finished. Twenty-one girls and twenty-one boys took part in a mathematical contest. • Each contestant solved at most six problems. • For each girl and each boy, at least one problem was solved by both of them. Prove that there was a problem that was solved by at least three girls and at least three boys How are these. And for the people you know that did an olympiad question for their EE, what did they do with it besides solving it? And would the RQ be the question of the problem? Thanks again!
  14. Those ideas are great but I think you should do something with applications, because I've heard marking for Math EE's is quite hard. What I've seen so far is people trying to solve mathematical problems from Olympiads. Maybe you could look into matrices, since they're off syllabus now If you are into calculus however, you could look at what you said, Taylor series and stuff, but I'm not sure what you want your RQ to actually be. Sorry that wasn't really helpful. Thing is, I thought I'd do a math EE but I switched to economics. And I absolutely love math but I couldn't hit a problem I really wanted to solve for a Math EE Hey Ossih! Thanks for the comment and yes, I actually think that it's better to look at past questions from math contests such as the Olympiad. However, I'm having trouble finding a question that would actually be suitable for an EE. This is most likely due to the fact that I have no idea how to go about solving questions that I see in the olympiads. Also, is learning matrices hard, or could I learn it in some weeks?? Thanks a lot!
  15. Hello guys, Since it's the summer, I need to finally re-start my EE since I discovered that my previous topic was way to simple. So, I have to start right from the beginning :/. Anyways, I just wanted to request for anyone to recommend me a topic/concept/problem in mathematics that I can explore for my Math EE. Something that is not too simple but also not too complex. I have to get this done by September 24, 2014. My favourite math topics are calculus, algebra, and trigonometry. However, I'm not a fan of probability and statistics. Update: I was thinking of Laplace transforms, Euler's method, or Taylor series as a topic for the EE. Any ideas as to doing this? Please note that I am not asking for a research question but a topic that I can explore so that I can come up with a RQ. Thanks so much to everyone and have a wonderful summer!
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