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1-2-3

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1-2-3 last won the day on September 18 2009

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  1. Hi can anyone help me? 1) For the part where you have to analytically develop two functions that model the data points, people have been saying the cubic and expo work the best? ( I think) However, the previous question requires a justification for the functions that you are going to create and why it would be a good one to use. Expo is easy to think of, but why cubic? I don't understand why everyone is using cubic!! I was playing with the trendlines in excel and it seems that the higher power polynomial functions fit a bit better...why are people using cubic?!? 2) ALSO: Does anyone know how to create an exponential function algebraically? Desy, thanks so much for you scan! It helped a lot for the polynomials, could you teach me how to do it with exponential? (I'm pretty sure you can only use polynomial functions with matrices to solve) Thanks Also there is one thing I don't understand. Desy, you know how you substitued numbers 0, 1, 2.... for the years 1950, 1955.... when you were solving for the polynomial equations by hand with matrices? How does that work? I mean if you change the x values that will change your entire graph! Does that mean you have to graph EVERYTHING from that point on with the years as 0, 1, 2, 3....instead of 1950, 1955,1960....?
  2. #11 about education and leaning. Was so happy that question showed up. 6 pages - 12 sides.
  3. Yes, the questions in QBs are very well organized. However, the material is no different from past papers. So, if I were you, I wouldn't waste so much money on QBs.
  4. 1-2-3

    CANADA WON!

    HAPPY DANCE x 10000000000000000000000000000! O Canada! Our home and native land! True patriot love in all thy sons command. With glowing hearts we see thee rise, The True North strong and free! From far and wide, O Canada, We stand on guard for thee. God keep our land glorious and free! O Canada, we stand on guard for thee. O Canada, we stand on guard for thee.
  5. Word it differently. Saying 'observing' appears as though you just sit there and stare at them working The rest depends on your CAS Coordinator.
  6. I don't think IB has a specific word count. The school usually sets up one.
  7. Yes, you can definately study for the SATs yourself. You can study from the Priceton Review books. If you don't want to spend money on books, I think that the sparknotes SAT online-book is also really good. Just make sure that you know what topics they test and study them in appropriate depth (especially for the subject tests). I have friends who studied for the SATs by themselves and did well.
  8. Stay away from doing topics that involve two distinct subject areas: for example, biology and chemistry both because in that case, you'll only be given credit for your work in one of them... As long as you can find a good method to calculated this amount of fat and make sure that you focus it on chemistry alone or biology alone, it sounds good.
  9. Andy, I don't think she is applying for September 2010. Some schools write their SL exams at the end of year 1 and write their HL exams at the end of year 2
  10. I wrote my Biology SAT II in June. All the studying that I had done for the exam in May really helped. Plus, I had time to look over stuff that the IB syllabus did not cover. I'd say, write it in June
  11. 'What can be said for or against the view that if we cannot say something then we do not know it?' Were you assigned this topic or did you come up with it by yourself? If it's the latter, I think you should re-word it. Talk about 'Language' and how it might limit what you know... I think just last year there was an IB essay question very similar to this.
  12. Hm. Maybe read about the topics that IB Chemistry and Biology cover... If you've done some reading on those already, it might help you better understand them when they are taught in class... So what topics do IB chemistry and biology cover? -- check out the IB syllabus documents
  13. I've heard that History HL is quite difficult. Plus, if you're interested in pursuing the sciences in university, why would you want to take History HL over Chemistry HL? Plus, if you like Science and are good at it (which I hope is that case if you're aiming for Med school), Chemistry HL & Biology HL will not prove to be extremely difficult or such.
  14. Yes. For Biology SL, I wrote the exam for Option A although we were taught Option C in class. Just make sure that you follow the syllabus carefully while preparing for an Option by yourself.
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