Maths SL
For Math SL discussions
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For the last few months I've been volunteering at my daughter's high school to help the 12th graders review for the International Baccalaureate (IB) Maths Standard Level Exam in May 2015. In the process I produced these review notes that I thought could be useful to other students preparing for the exam as well. Review Notes for IB Maths Standard Level I'd be grateful if you email me with any mistakes you find so I can correct them. Best of luck on the upcoming exams.
Last reply by kw0573, -
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Here they are. Type I: Infinite summation Stellar numbers Type II: Population trends in China G-Force tolerance Population Trends in China.pdf G-Force Tolerance IA.pdf Infinite Summation IA.pdf Stellar Numbers.pdf
Last reply by Mahuta ♥, -
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This pdf has the math SL tasks for 2012/2013. The tasks are: Type I: Lacsap’s Fractions Circles Type II: Fish Production Gold Medal Heights portofolio tasks for 2012 2013 SL.pdf
Last reply by bomaha, -
Hi everyone! Luckily, I have a few days more to finish my first Maths portfolio. My god how the time flies - it was a few days ago when we got the assignments and now I'm sitting behind a desk with a cup of coffee... Anyways, back to my question: We've been given data regarding population at a specific period of time. There is a specific point in the assignment that goes something like this: A researcher suggests that the population, P at the time t can be modelled by P(t) = K / (1+Le-Mt)  where K, L, and M are parameters It is my job to estimate and interpret K, L and M. I'm not quite the independent thinker in Maths and I'm stuck with this one. If anyone has tips h…
Last reply by lemonade, -
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Hi everyone, I am given the portfolio assignment and thankfully it isn't that hard. But, I have trouble explaining it. By looking at the numbers, I've noticed that the numerator increases by 1 than the previous number. What I meant is, in the 3rd row the numerator is 6 and it increases by four and becomes 10 in the next one. Then, 10 increases by five and becomes 15 in the 5th row. However, it seems to me that my explanation is sort of awkward. So I decided to ask you guys how you would explain it. I am attaching the portfolio method. Thanks in advance for your help! =) 1.pdf
Last reply by Paalme, -
I have been assigned stellar numbers portfolio for this year, which is due in two-three weeks. I have been working on it for a while, and I have figure most of it out. The only thing I'm stumped on is the star numbers formula relating to terms of n. I have got the formula which works but I have no idea what to do to get the formula. Any help given would be appreciated.
Last reply by mavv, -
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Hello everyone! I'm currently trying to write my Maths exploration, and I'm having some trouble with the structure. I understand that, as with most pieces of writing, it should have an introduction, body paragraphs, and a conclusion. In the introduction the aim and the rationale should be included. It would be very helpful if someone could give me a detailed explanation of how to structure this piece of work. Thank you in advance!
Last reply by 10km16, -
after plotting the datas in excel, it is obvious that this is an logarithmic function, but then what? what is the next thing that we should do??? ıf anyone knows please help me!! Post by: MahutaI merged another topic about G-FORCE TOLERANCE with this one
Last reply by Phoenix, -
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Ok so I received the portfolio gold medal heights it's due to 10 days from today. It is actually all the heights(cm) achieved by the gold medalists of high jump from 1932 to 1980. I have to define all variables and sketch them on a graph. Now here comes the hard part - 1940 and 1944 no olympic games were held. 1)Should I include those 2 on the graph or no? 2) They ask me to define all variables but I have no clue about what variables they are speaking about? 3) The function(using a trend line) of the graph seems a bit hard to choose. Should I be leaded by the value of R squared( correletion coefficient)? I mean the closer the function is to one - pick that function! I a…
Last reply by khimberleigh, -
They've given us a new math internal assessment about infinite summation. But I couldn't find anything on the internet and I really need help because I did not understand anything!!!!!! its deadline is 4 days from now! If there's anyone who already solve it please help me! Post by: Mahuta 2 TOPICS MERGED
Last reply by caylijude, -
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Ok...so this project isn't too bad. The only thing many classmates and I are stuck on is where we have to find the BMI data from another country. Anybody have any success with this? Any help would be really appreciated. *The other two thread for the BMI project were merged with this one*
Last reply by vinay427, -
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Hello! My school is only in it's second year of IB and I'm supposed to write a Maths SL IA over the summer, but my teacher didn't relly explain the process very well. I know that the paper is supposed to show my mastery of a level of math that is appropriate to Maths SL, but I'm not sure what the premise of the paper is? Am I supposed to form an argument? Can I use outside research? Am I supposed to form a hypothesis and test it using maths? Can someone give me a breakdown of the expectations of a Maths SL IA from the ground up? I'm really confused. Thank you in advance!
Last reply by YellowSpider, -
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Hey guys, I have a Math IA due on Sunday December 15, which is about 9 days from now. I want to do my topic on the golden ratio because firstly, I'm genuinely interested in it, and secondly, it's extremely risky to change topics at such a late stage. I know some of you will scold me for procrastinating on it but believe me I've legitimately been working on it. However, I'm having trouble finding an original idea based on the golden ratio. I did an introduction where I introduced it and such but I'm having trouble with how to proceed. I know it's supposed to be an exploration on a real-life thing because I looked at past IAs; even my teacher said that my topic is good but…
Last reply by dino7, -
Hey all, I got the new SL Type II IA for 2012 and 2013 and I found that I need to graph a Sine Regression function against a set of data to test it. For my past IA's I have found some way to use excel to graph by data and regression fits... however I am having some serious trouble figuring out how to plot a sine regression against my data. I ask this because I have already done all the math on my TI-84 Plus. I am trying to figure out how to plot the same graph the TI does when you go to STAT -> CALC -> SinReg L1,L2,Y1. Does anyone have any ideas on how to do this in excel or some other graphing package? Thanks, -Noxen Also, I would prefer and excel solution if any…
Last reply by JackalJack, -
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Will someone help me with this IA? I can see that AO and AP' are equal because they are both radiuses of C3, but I don't understand how you can solve for OP' without a given angle! please help!
Last reply by Ritva Maria Vilppola, -
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I have my first portfolio due this week and I have no idea how to start! Any help? pleaseee
Last reply by ripziro, -
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Hey, there pls i need some help in ma math portfolio due in 2 days!! Its about a fishing rod, we're given points to plot on the graph and then we have to find a quadratic and cubic function modelling it. Then we have to find the equation of the original curve. I pretty much stuck and would really appreciate some help. Thanks in advance!
Last reply by ibisawhore, -
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I take my IB math SL exam in less than two weeks, are there any tips or recommendations from previous takers? For those that have taken this exam previously, how much of the exam (paper 1 and paper 2) do you have to get correct in order to get a 4 for the course? Taking into consideration that my IA is aiming me for a 6. Not exact figures, but rough estimations on how much I would have to get correct. What are you thoughts on the exam? easy? hard? Any links or advice would be appreciated!
Last reply by Boris, -
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Hello people, So I'm finished with my Math IA but the only thing left is the reflection. I'm not exactly sure about what to write. I looked it up online and it says that I should discuss the implications of my results, state the significance, limitations, extensions etc.I stated the limitations but I'm not exactly sure about what 'implications' refers to here. And what does extensions mean? I'm lost about how to analyse and evaluate my exploration. And my topic is Modelling Population of the world, if it helps answering my question. Please help. Thank You =)
Last reply by Karan888, -
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Hey Guys, i'm currently taking maths sl and i have also considered switching to math studies ( i am bit lazy ) but then after many people told me that it does not look good on your college application i decided to stick to math sl. Now my question how do i get a 7 in math sl ? I mean is it hard to get a 7 in it ? Will i be able to get a 7 when doing tons of past papers, or will it be just a good 6 ? Who got a 7 and how did you study for it ? Thanks!
Last reply by thatoneguy, -
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Modelling Sine Waves with music I'm not quite sure what we should actually do in a Math IA, such as the requirements. Also for this specific topic, I'm lost about what i could do, do i have to pick a song and make sine waves of those notes?? I have no idea how to look into this topic and what should i apply it to could i get any advice, resources or any procedures? Thank you!!
Last reply by IB Math Helper, -
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Throughout July, I've send more than 10 different topics to my teacher and they all got rejected.. I'm not asking for a topic, just how to come up with a topic. The last time I emailed my teacher, we were heading towards the direction of voice recognition, language modelling - exploring the math behind the speech/voice recognition algorithm used by Siri, etc. After researching information about the topic for the past week, It involves programming and is too difficult for me to understand. Can you tell me how you found your topic? And how to tell if your topic is good enough?
Last reply by BudyH, -
My IA is on infinite surds and I have a few questionss.. I don't know how many sig figs to pick.. is there a specific rule?? Please heelp! Mine is due in two days!
Last reply by Dhara, -
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Hi! What are you guys doing for your math exploration topics? Could anyone suggest a few to me? I really don't know what to do. Thanks! ______________________ IB makes me wanna
Last reply by WongiGospel Herman, -
what do you think about math paper 1 2015 the last question ?
Last reply by steve.muench, -
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In this exploration, I want to see how mathematics is used to "predict" price movements by financial traders. This is very interesting to me as I want a career in Finance. Furthermore, I want to explore particular events such as the fall of the Lehman Brothers etc. and view correlations between stock valuation, output and market volatility. I also aim to find out what sort of correlations there are in particular stocks. I will use technical analysis (stats) on a particular stock index to find these price trends. The majority of the maths required in financial markets & trading is probability, statistics & stochastic calculus. The Black-Scholes equation (alth…
Last reply by GeneralFox, -
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Hi there! I'm almost done with my math SL IA and the topic is "The presence of the golden ratio in our everyday lives". What I basically did was show how the golden ratio can be found in various structures (human hand, DNA helix, ID card, aspect ratio etc) and I'm stuck at the conclusion. Our teacher didn't really gave us instructions but he was more like "yeah, that's a good topic and idea, go ahead". Can anyone please suggest what I should put in my conlusion? Every bit of help is much appreciated!
Last reply by bluedino, -
IA Crows dropping nut 1 2
by djoe9- 39 replies
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ok guys im kinda doing my second portfolio right now n im kinda stuck on one part of the question height 1.7 2.0 2.9 4.1 5.6 6.3 7.0 8.0 10.0 13.9 number of drops 42.0 21.0 10.3 6.8 5.1 4.8 4.4 4.1 3.7 3.2 they given us information on crows dropping nut.. with the height and the number of drops.i managed to plot this graph n i get an Hyperbole graph. the question asks what type of function models the behavior of the graph? explain why you chose this function.create an equation (a model)that fits the graph. i dont get how to get the equation they asking for. please could someone help me urgently..or explain to me.…
Last reply by jupiterscomets94, -
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as you all might know, the Internal Assessment (IA) for SL Math has changed this year because of the new curriculum. Now we have to find a topic ourselves, and investigate it [ t(-_-t) to IB ]. But I am stuck with no topic right now and im in desperate need for some suggestions. some suggestions my teacher made were trying to investigate things with relationships. Like maybe traffic vs. construction or reaction time vs. time of day. but these have already been taken. So i desperately need suggestions for some topics. please help. )':
Last reply by struggling, -
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Hi guys, I was just wondering if anyone could offer me any ideas on what other statistical tests or math can be used in my math ia on statistics. I already did linear regression, pearson correlation coefficient and chi squared test. I was also thinking of doing standard deviation but I'm not sure how that would be helpful in my analysis since I'm comparing the relationship of two variables. Any help is appreciated! Thanks, Tony
Last reply by Isaiah28387, -
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I am facing problems in my math exploration. I have chosen a topic i want to do on calculus but not getting any idea. So i hope someone could help me
Last reply by Nureshka, -
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Hi everyone, I need a math IA topic pretty soon and I've been struggling to find something that I both like and can find an appropriate application of math to. I want to go into architecture so I was thinking something about that, but the issue is, most of it is just geometry which I think is too simple for SL Math. The other idea I had was too complicated and there was no research question I could come up for it. It was exploring ideas of parametric architecture like Zaha Hadid uses. Here's a link to some basic 3d parametric modeling I looked at, but again, it seem too complex and I dont know where I would go with it. Any suggestions? Thank You! 3d parametrics
Last reply by JohnSchriner, -
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We have the SL exam in a few days....and I was looking over my GDC and I dont quite get the difference between normapdf/normalcdf and binompdf/biompdf. I always get confused between the four, so which one do we for what type of question (could you also please give an example...). Any other HELPFUL tips to prepare for the exam. PS it's TI-84 Silver Edition
Last reply by IB>mindf**k, -
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Hi! I am trying to choose a topic for my first ib math ia topic and I was considering doing one involving probability because we just learned a lot about it. I was thinking about doing my paper about the probability involved in card counting for blackjack but am having trouble finding what formulas (if any) I would actually be using because the whole thing can't just be probability without replacement. Any suggestions? Or maybe should I just stick with doing a statistics type of IA paper? Thanks!
Last reply by -._._.-, -
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Could anyone please inform me what the required length for the Exploration is? Also how could one show personal engagement with the topic?
Last reply by [email protected], -
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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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Hello everyone, currently I am writing a new math IA and i decided to write it under the topic of Projectile Motion. What what I want to do is take a video of a setter (in volleyball) and him setting the ball up. I'll take that video and create a graph and will derive that function. The thing is, I think that this is a little to vague, and I really don't have a clue on what to really explore within my topic. For the volleyball idea, I wanted to originally see what's the best place to put the ball in the air to get a good hit in for the spiker. If you have any further suggestions on what else I should do with this topic, I am open to any suggestions. Thank you!
Last reply by Sofie1, -
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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, -
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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've decided to switch my Math IA to population growth instead. I know that there is already an equation created for population growth and this confuses me because would that mean my ia would only consist of plugging in numbers into an equation and then simply manipulating it a little (because I want to find the optimal population in a country)? :/ Like, what else am I supposed to do?
Last reply by Rigel, -
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Hey guys, I'm having a little bit of trouble with the Math IA since now we can choose our topics we can basically do anything. I first came up with the idea of fractals and had almost a clear idea of how to develop it, I talked to my math teacher and I was going to use sequences for Geometric Fractals or just linear algebra for Algebraic Fractals...however, I was browsing through the Math IA Topics on here and came across many threads related to fractals and many moderators told users not to chose Fractals as their Math IA topics. After looking for many other topics I finally decided to do it on Kaleidoscopes. I'm interested in it since I'm also a Physics SL student and i…
Last reply by Mallory, -
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Hi, We're really far behind on our syllabus in math, which means we need to do the exploration pretty much entirely by ourselves, and I'm lost so I thought I'd ask for help here first My topic is cryptography and my plan is to use matrices. I know this isn't in the SL syllabus anymore but my teacher said it was at the right level for the IA. Regardless, is it okay to only use matrices or should I bring in something else? (If so, suggestions would be greatly appreciated - I'm planning on using simple arithmetic to explain the history of cryptography in my introduction, but that would be very brief and simple) Also, I'm a bit lost as to what to do in the exploration itself.…
Last reply by elaifyanre, -
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Hello guys I'm having problems coming up with a topic on Math IA. I wanted to go with health/medicine related topics exclusively and I came across the topics of BodyMassIndex change over time, as well as a spread of Infectious disease model (I'm attaching both as well as a specimen paper - Example 11 - I found was awesome and super concise albeit quite simple and I would like my study to be somehow similar!). The BMI study essentially portrayed the distribution of percentiles for each country (in page 5) as well as the change in BMI from 199something-200something (in page 7). If someone could take a quick look and/or suggest anything I could do with relation to BMI it wou…
Last reply by anotheribkid, -
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hello there, I'm an ib student from tokyo and I'm currently learning maths sl from the haese mathematics text book "third edition". My school has 8 ib students and we're one of the first to do the ib program in Japan. We all have the text books but the problem we have is that we don't have the solutions book. I asked the teacher if the school could buy them but apparently the states and Canada don't ship them over to Japan. So, the current situation we are in is studying without the solutions! It's very inconvenient without the solutions and frustrating when we don't get the answer right and don't have the solutions! If someone out there has the solutio…
Last reply by maczekuk, -
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Hello I was wondering if anybody could help me come up with a topic for my math exploration. Ive been trying to think of one for a few days now, and theres just no way I can. I need one desperately right now. Im interested with doing anything with probability, expectation or statistics, from a math point of view, and from a topic point of view I was thinking either sports, or cards, or lottery. If anyone could help me it would be really greatly appreciated. Thanks a lot Luka
Last reply by Raptor123a, -
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Let's say I scored 30/90 points on P1 Some 25/90 on P2 And my IA was incredibly bad (mainly because my teacher couldn't care less if we fail or not, so he just accepted anything we handed him in and didn't even give us feedback). Points ranging from 1/20 to 5/20. Would my final percentage be calculated like this: 5/20*20 + 30/90*40 + 25/90*40 That'd be 5 + 13,3 + 11,1 = 29,4 ? Thanks!
Last reply by ultimateone, -
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(Sorry this is so long but really need urgent help! Draft due next week!) Hi everyone, So I've been stuck on my Maths IA for a while after having to change topics because my old one was too fiddly. I've discussed doing the Birthday Paradox with my teacher, and she said it was a good topic. However, I'm on holidays now and have sent her an email asking about a problem I was having and possible solutions. In her reply she said she was worried I wasn't doing enough maths. What I was previously planning on doing in the IA was: - Discussing the Birthday Paradox itself and the maths behind it (how many people do you need to have in a group so that there is an over 50% p…
Last reply by erika_trxn, -
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Hi, does anyone know/have the newest grade boundaries for IB Math SL? Thanks
Last reply by IB`NOT`ez, -
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So, I was going through the list of possible IA topics our teacher as examples and I found the Bayes' Theorem really interesting and simple enough for me to understand!!! I was wondering how I could make it into a good IA topic. Maybe," How can Bayes' Theorem be used in the Medical Field?" Or, "How can Bayes' Theorem be used in today's legal systems?" Are those too narrow? Should I just make it as simple as "How has Bayes' Theorem contributed to today's society?" I know I'll need to give a few examples to show how it works, but I just don't know how narrow I should make the topic! Please help! Thanks!!
Last reply by SeniorStatus14, -
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So i chose to base my exploration around the number of possible grids of a sudoku puzzle, but i can't seem to find much use of advanced mathematics. It seems most of the mathematics in sudoku is based around permutations and summations, which im afraid might not be advanced enough...also i feel as if im just copying down what other people have already published and explaining the process behind it...i guess what im trying to say is what is an exploration?
