Maths SL
For Math SL discussions
1,591 topics in this forum
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- 1 reply
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Bio IAs/labs have set formats that need to be followed. Are there any specific formats for math IAs?
Last reply by dessskris, -
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Hello everyone... thank you for taking your time to read this simple post. My problem is that when using the Ti 83 plus silver edition, I can´t graph the logistic function I´ve found. Could anyone please find what is the problem and please teach me how to graph it... I already inserted the function and enabled graphing.
Last reply by dessskris, -
- 3 replies
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Any tips for a well written maths SL revision guide? I use Mathematics SL for the IB diploma by Smedley and Wiseman and it is not very good.
Last reply by Hedda, -
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Hello everyone I am gonna be an IB student next year. I know IB HL maths is extremley challenging since I have some friends of mine who have done it and have struggled for 2 years. Considering the fact that I am in core mathematics in IGCSE, students usually do maths studies instead. But, due to our limited numbers in school, our maths co-ordinator is allowing some of us to join SL maths. I was wondering if any of you out there have done it?? and do you recommend it or studies better? I can accept a few challenges and can definitley work hard in order to achieve my goals, however i am really interested in your guys's opinions. Thank you
Last reply by jmw, -
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I was wondering what calculators are accepted for IB math exams. Mainly is the TI-89 accepted?
Last reply by Matt_Poole_13, -
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Hello, I am looking for someone to instruct me on the ti-nSpire regarding statistics. It would be perfect if this person had skype. I am having really big trouble with this topic on my calculator and all the teachers at my school use the ti-84 so I am really alone with this issue I know this is a lot to ask, but if anyone could help me I would be enormously grateful. Thank You Matt
Last reply by dessskris, -
- 3 replies
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As I understand the Gaussian function is y=ae^(-(x-b)^2)/c^2)+d If that is true, how exactly do I determine the coefficients (a,b,c,d)?
Last reply by MR.AHM, -
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I'm downloading and doing past papers, but till which year should I complete? When was the most recent syllabus change? Cause I don't wanna find questions that aren't in the exam. I'll be writing the exam 2012 May. Thanks.
Last reply by Dina444, -
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Olio, guys Hey, I need some thoughts or a bit of guidance about the induction thing. I have a function with two variables: one describes the dependent points on a curve, the next transforms the curve as a coefficient would do, or sth like that. I wish to prove that it fits any of the related data, in other words, prove it is the one. Any thoughts, suggestions on how to start and what functional steps to take? Thank you. In advance ^^
Last reply by dessskris, -
- 8 replies
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So...I've just solved the whole stellar-number IA paper, and now I just need to start writing the report. But where to start? The teacher never gave us any guidelines... Is there any specific format of writing the IA, aside from the introduction and conclusion? And oh, what should we include in the introduction? Thanks a lot for the help.
Last reply by ch_ris127, -
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So I found out i got low 80s/90 on both my papers, thinking I'd get a 7 but instead I get a 6. I came to the conclusion that it was the 24/40 on the math IA's that brought me down . Anyone know if we can redo and resubmit our math ia's in our graduating year?
Last reply by Summer Glau, -
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Hi, I have been experiencing a lot of problems qith my TI nspire calculator when doing statistics. I can't find a lot of functions, one of them being the standard deviation. I put numbers in a list and what should I do to calculate standard deviation? I use the one-variable statistics but then I don't really see the difference between that and the two-variable statistics. Thanks
Last reply by Hinuku, -
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Hi, I don't understand how the numsolve works on this machine. I don't really know how to introduce the guessing that is a must in the older model. COuld anyone explain this to me? Thanks
Last reply by Austin Glau, -
Quiz Time!
by Ezeh- 1 reply
- 1k views
Here is a thread where you can go to revise your mathematics, from algebra to calculus! You can either have a read through the questions and answers, or you can contribute and write your own tutorials on how to do questions that you found difficult! Not only will you benefit but further remembering the question that you're teaching, but you are helping others' revision! Rules: Must use the built-in maths tools for questions/working. Tutorial Here and Here. All questions must be accommodated with full working and explanations, to help the reader. All answers must be wrapped in [/ spoiler] tags, available from the "Other Styles" menu. Tips: Wrap your quest…
Last reply by Ezeh, -
- 5 replies
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Hi, I was wandering if the polysimult app is present in the TI nSpire. It was in the TI 84 so I guess it should also be here Thanks
Last reply by dessskris, -
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How does one go about describing the steps you took to developing the functions in paragraph form? Is it acceptable to use a "First" "Next" "Then" format? Or do they want a more fluid writing structure? Or does it even matter?
Last reply by dessskris, -
- 3 replies
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i don't getthe point about matrices.. anyway how should this be solved to form a matrix: 554.8 =(a)(1950^3)+(b)(1955^2)+©1950+(d) 729.2=(a)(1965^3)+(b)(1965^2)+©1965+(d) 998.9=(a)(1980^3)+(b)(1980^2)+©1980+(d) 1220.5=(a)(1995^3)+(b)(1995^2)+©1995+(d) how to solve for a,b,c,d
Last reply by timtamboy63, -
- 3 replies
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Hi, I have this problem with one exercise. Its in the "Mathemathics Standard Level for the IB Diploma" book by Smedley and Wiseman (oxford is the publisher) - maybe someone will find this helpful Anyway, these are exercises 9 through 15 on page 259. The content is like this: In question 9 - 15 prove each of the given identities. 9. 2cos2x - cos2x (triple equal sign o,O) 1 10. 2cos3x + sin2xsinx (triple equal sign o,O)2cosx 15. 1/(cosx+sinx) + 1/(cosx-sinx) (triple equal sign o,O) 2cox/cos2x How do I solve this? Thank you for the trouble, Matt
Last reply by Peanut Butter Jelly, -
- 5 replies
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Hi I have this dilemma about the radian/degree settings in the Ti-nSpire calculator. In the old, Ti-84 there was only one setting I think but here you actually have three different places where you can modify this. Why is it so? Which setting should I use? I though that the main one, the one after pressing 5,2,1 on the main screen is like the mother-setting but then it came out that its not always enough to change this one only. And another thing - can I change the radian/degree mode while in scratchpad or a document? Going back to the main display is just really time consuming Thanks Matt
Last reply by dessskris, -
- 7 replies
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They give me two matrices: Matrix C = (a= -2)(b=4) (c=1)(d=7) Matrix D = (a=5) (b=2) (c=-1) (d= x) Instructions are: "Matrix Q is such that 3Q = 2C - D", FIND Q If there is a matrix with "x", and no matrix as D how do I solve this??
Last reply by IB>mindf**k, -
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hey guys. i really need your help. i stuck at doing my math portfolio. i was given the assignments to be done during my sem 2 break and honestly, i dont even know how get started. the portfolio is about matrix powers. can you guys suggest me url for math software? please,help me
Last reply by dessskris, -
- 4 replies
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I recently recieved my grade for the IA's I did in math recently. I got a 33/40 (15/20 and 18/20) from my teacher and mine was the highest in my school so it is being sent in. Is this a good grade? What are the chances that it will be graded down?
Last reply by Summer Glau, -
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What percentage would I need in order to get a 7 on the IB math SL exam? If it changes every year then on average.
Last reply by dessskris, -
- 5 replies
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Help! Can someone tell me how should I study for my Math Sl exams? -> Strategies, topics, materials etc. All the past papers I have are kind of old and do not have the new non calculator paper 1 exam. Do you think some topics of the 2010 May exams; will be repeated in the 2011 May exams? THANK YOU
Last reply by Jade D, -
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Are the graphs to be drawn on the lined or graph paper? If it's not a graphing question but rather just drawing a rough sketch to show working should the graph be done beside your answer (on the lined paper) or on a separate sheet of graph paper? Sorry, really nick picky questions.
Last reply by Jade D, -
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We have a new IB math teacher and a new IB coordinator at my school; there is some discrepancy between whether or not we receive the entire math SL booklet (that contains all the formulas for all the topics) or whether we just receive the presumed knowledge page (alone with distribution graphs for stats). I'd like the answer for both papers. Thank you!
Last reply by slizzie, -
Integration
by hel- 4 replies
- 1.4k views
I was having difficulties integrating and answering this question... If anyone could help, I would really appreciate it!
Last reply by pap6r, -
- 3 replies
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So exams are this week and we haven't even reviewed or even finished learning the content for math. Our last class with him is tomorrow and then those who can are staying after to get further in the content. Of course, this has me completely freaking out. I'm not even completely sure as to how the papers look and what's the difference between the two? So any just tips on studying or just something to help calm my nerves would help, thank you.
Last reply by jess1ca, -
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g'day, just been doing past papers since the exam is this week! i've had a little hiccup with some of the following problems any help would be much appreciated; ++1. Consider the curve y=ln(3x-1). Let P be the point on the curve where x = 2 (a) write down the gradient of the curve at P. (b) the normal to the curve at P cuts the x-axis at R. Find the coordinates of R. I can do A without any problem really y'(2) = 1/(3x-1) * Dx = 1/(3x-1) * 3 = 3/(3x-1) = 3/(3(2)-1) = 3/17 i know that the normal is the negative reciprocal of the slope of the tangent and i understand that i must integrate the tangent and solve for X to find the coordinates of R but i am confused as how to go…
Last reply by dessskris, -
- 5 replies
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So I've had a week off from school because of the snow and I finally have to take my IB math midterm tomorrow. I found a few problems in my book that I need someone to explain to me. Your help is appreciated!!! 1. Find the exact value of x for which 4^x * 5^(4x+3) = 10^(2x+3) 2. Solve by completing the square: 4x^2 + 4x = 5
Last reply by dessskris, -
- 4 replies
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Can you use personal pronouns on the math IA? Also how do you writ a good introduction for the math IA?
Last reply by Summer Glau, -
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In this question, a unit vecot represents a displacement of 1 metre. Am miniature car moves in a straight line, starting at the point (2,0). after t seconds, its position, (x,y), is given by the vector equation: (x,y)=(2,0)+t(0.7, 1) a) how far from the point (0,0) is the car after 2 seconds? b) find the speed of the car c) obtain the equation of the car's path in the form ax+by=c. Another miniature vehicle, a motorcycle, starts at the point (0, 2), and travels in a straight line with a constant speed. The equation of the path is: y=0.6x +2 (x is greater than or equal to 0) Evantually, the two miniature vehicles collide. d) find the coordinates of the collision point. e)…
Last reply by annaanna, -
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Long story cut short: my maths teacher is an idiot. He taught us nothing about using GDCs. I can't use it for any stats, quartiles, normal distributions, etc. etc. I don't want to fail paper 2. My calc is Casio FX-9750GII Please, can anyone refer me to a web-site/user-guide that will explain how to use the GDC in plain English? I've tried the 400-page+ user manual from casio - I feel like Pasis Hilton when I read it. Please-please, anyone help - this issue can result in my losing my university place. Thanks.
Last reply by n0urhan, -
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Hi, I was working through an exam problem(May 2009 P1) and I have a question.... Basically the problem is worth 6 marks. You're given a function, f(x)=e^x cosx and need to find the gradient of the normal to the curve of f at x=π (pi). So I used the product rule to differentiate and then substituted π. I simplified the answer which gave -e^π and I left that as an answer. However it says that you should take negative reciprocal -1/f'(π) which results in the gradient being 1/e^π. Why do we need to take the negative reciprocal? Thanks in advance.
Last reply by dessskris, -
- 9 replies
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Hello, I was wondering if any of you have good revision notes, topic outlines, examples (I would greatly appreciate anything, really!) that would save help me(and the rest of my class) for the Math SL Exam. We're the first IB class my teacher has taught and she's pretty new with the whole IB curriculum. She is quite disorganized in comparison to my other IB teachers and I believe we have insufficient notes/examples to help us for the SL exam. According to her, we still haven't done some of the curriculum. Furthermore, we've tried practice exams and we barely knew anything!-and in less than a month, we'll be writing in the exam room. Yes I know if we really study it shoul…
Last reply by IBavictim, -
7 in Maths SL
by hel- 2 replies
- 2k views
I need some tips how to achieve the highest possible grade in SL Maths... I know everyone has their own ways but maybe there's some techniques I haven't thought off... I'm currently doing past exam papers ocr revision guide - solving more questions looking at the topics I find difficult (from the past exam papers etc) - watching tutorials/doing more exam questions from that topic re-doing the exam papers I doubt note taking will help for maths. PS: I'm not very confident with GDC, and I wonder if there are any good websites that can help you with that?
Last reply by Daedalus, -
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I need the task sheet because I lost mine...it's due this week! Anyone know where I can find it online??
Last reply by Susan Bahaduri, -
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Hey well yea 2 months to go until i DIE... lol AKA exams, but i really want the Maths Methods SL data booklet... anyone know any way to get a hold of it??? Really need it!! thanks !!
Last reply by I am screwed, -
- 2 replies
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I have a question specifically about Math SL calculus part- do we have to know how to sketch the graph of function basing on the first and second derivative, like the points of inflection, local and global maxima/minima, or vertical tangents and cusps.? or is it just enough to draw it with the aid of GDC.? I mean, can specifically sketching a function with those derivatives and all features can happen on paper 1.?
Last reply by paperpheasant, -
- 2 replies
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Yeah, so does anyone have access to past exam papers? I really need them to study and get a grasp on things. Preferably the ones from 2008 which was when they started the new syllabus. I already have in my possession the 2008 May one from Freeexampapers.com but I was wondering whether or not there are other ones? The other exam papers in freeexampapers.com did not have the mark scheme and I want to know what I did wrong on a question.
Last reply by Wilhelm, -
- 5 replies
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Im not sure if this question has been asked before, but how often does IB take samples of portfolios from all the schools and moderate them? Every year? Or every 2 years? And also how many samples do they take per school? Thanks in advance
Last reply by Keel, -
Does anyone have or seen a rubric for the Math IA at SL? I've lost my original copy, and my final draft of the IA is due tomorrow... Imma have to pull an allnighter on this and the TOK Essay, but can anyone tell me where i can find the Math IA rubric?? It'd be really helpful.. (:
Last reply by Mahuta ♥, -
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Is anybody using the SL textbook from Haese & Harris? I would like to hear people's opinion about it since I plan on purchasing it.
Last reply by !ndigo, -
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Does anyone know the difference between Type-1 and Type-2 math portfolios? Does one require the use of technology and the other the use of algebraic and mathematical proof?
Last reply by dessskris, -
- 2 replies
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I am now working on my portfolio task type II (math modelling), as I got to the "K, L, M"-part I decided to use my TI-84 Plus. However, when I want to plot the logistics (L1 representing th years, L2 representing the population in millions) I get "Error: Domain" - what is the issue and how do I solve it? Thankful for any help!
Last reply by aserading, -
IA Math IA Example HELP!
by Guest Franay Cordova- 9 replies
- 7.9k views
I'm new to this forum thingy so im not sure on how it works ^.^ but anywho, I have most of my work due for my math IA due this week and I'm desparate for a full example of a done exam. I have all my data and charts done, I just need something to guide me on how to format the whole thing. Can someone please help!? I tried google-ing some examples, and it's very misleading :/
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- 3 replies
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thanks
Last reply by butters, -
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I'm confused about the second question asking you to "develop functions." Does that mean to find an equation for the function? And if yes, then how do you find the equation for the curve? Do you just use excel to graph a treadline or something like that?
Last reply by manuela manrique, -
- 10 replies
- 14k views
Ok, before anyone bites my head off, I want to say: I AM NOT ASKING FOR ANY ANSWERS OR YOUR PORTFOLIOS I am not even going to mention what portfolio I am doing. EDIT// Actually, I changed my mind. I'm doing "Matrix Binomials." Hehe. All I wanted to know was what is the format of a Math Portfolio? I want to know how to write the coverpage, if it should be in MLA format, double spaced, etc. Our teacher was considerate enough NOT to tell us this. I've heard there should be an introduction and conclusion. Is this basically a summary of what the portfolio is about? I've searched all over the internet for the answer to this, and found nothing. I guess the people who know…
Last reply by dessskris, -
- 2 replies
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Hey! Does anybody have paper 1 and 2 maths SL from last year (for free)? They are really hard to find! Urgently needed! Thanks
Last reply by ThinkPink5,
