Maths SL
For Math SL discussions
1,591 topics in this forum
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hey guys!! Im currently doing math SL's IA, and got some ideas but not sure if they allow sustain investigation :I If anyone can give a tiny little feedback(s), then please!!! any!!! ideas: 1) Modeling earthquake question: log can be involved by richer scale, any other suggestions? 2) swimming and math: surface area and buoyancy?! question: too simple? 3) Possibility of hitting a jackpot using combination question: which mathematical area can i use from ?
Last reply by beanana, -
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Hi everyone! I have to do my math IA right about now, and I started with the idea of discussing horse jumps (where the apex/ maximum height is always the same) and then linking it to something like graphing the jump as a parabola where the start and end distance from the maximum are the same but im really confused as to what type of math topic i could use.. math equations and parabolas? (too simple? ) kinematics and projectile motion? (if yes, HOW?) displacement? PLEASE help with ANY idea possible or any suggestions! Thanks
Last reply by vscaglia12, -
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Hi there! Are we meant to be using the population or the sample standard deviation, or both? My maths teacher taught us both, but didn't make it clear which to use, and it never seems to be specified in exam papers. Thank you!
Last reply by Ossih, -
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so 5 players on a team receive score between 0 and 100 inclusive. if the average score was 80, what is total possible number of players who could receive a score of 50? none one two three four
Last reply by Emilia1320, -
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The question goes like this, Find the coordinates of the point on the graph of y= x^2-x at which tangent is parallel to the line y= 5x. Can someone show me how it is done. Would help alot thanks.
Last reply by Emilia1320, -
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Could someone explain these exercises? Solve for x being x bigger or equal to zero and x being smaller or equal to 2pi. -sin4x=sin2x -sinx+cosx=2^1/2 -2cos^2x+3sinx Thank you!
Last reply by anb2016, -
Hello! My IA topic is going to be due soon and I'm still trying to figure out my topic. I'm interested in doing it on music but I'm having a hard time coming up with a proper question. Any suggestions?
Last reply by Mitko Dimitrov, -
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1) For the line defined the parametric equations x = 3 + 2t , y = 4 - 3t, z = 1 + 5t find the coordinates of where the line crosses the x-y plane. 2) Find the coordinates of the point where r = [-2, 5, 3] + t [-1, 2, 1] intersects the x-y plane. I don't get how to do them. Please help
Last reply by Slovakov, -
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Hey guys! My year was asked to think about ideas that we would do for our maths exploration, and I've been searching for the past week for any ideas. I have a few ideas, however I'm not sure whether they'd be sufficient for SL Maths. Also, one huge problem I have is that I might have a stimulus, or a general idea I'm interested in, but I'm a little unclear on what I should do to explore further. We'll get to ask our teacher for feedback in about a few days' time, however I want to get your feedback as well so that I can make changes asap So my ideas are: 1) Cyclic pentagon - I watched a video online, and they were suggesting something about measuring the ang…
Last reply by avalinelegato, -
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The math exams are in one month!! Most of my mates are making tips on the questions that may appear in the exam paper here is the tips for the math exams for may 2015: bit.ly/1IrvpTS
Last reply by Karen Spake, -
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Hi, for my maths IA I want to investigate if it is possible to predict stock prices using probability. I will look at the firm apple and see by how much each month the price has changed for 2 years. With that data I want to calculate the probability for the price to rise again if it has risen the past two years.. however I am not quite sure how to do that, since i can't use the normal probability equations since there is a lot more possible and total potential outcomes... my question is basically how do I do the maths??? thank you in advance for anyone who is willing to help me out
Last reply by Alex17, -
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Hello! So I've decided to write my IA on the topic of "can stock prices be predicted mathematically?" What I am going to do is I am going to take 6 companies, 2 of whiches stock prices were pretty much only rising/falling (for example Apple) - this would be a "control group", and 4 of whiches stock prices were shifting around constantly (haven't found a good example for that yet). I will then collect the month-by-month stock price changes (how much the price rose/fell from the start of the month to the end of it - e.g. at the begining of month X the stock price was $2 per share and at the end it was $3 per share, so the change will be +$1 per share) for the past 3-5 year…
Last reply by Alex17, -
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My maths end of year exam is in may and on both semester 1 and semester 2. I am in grade 11 and I am a little freaked out since maths is the subject I struggle with the most, I plan on seeing my teacher and asking him for wksht but how else can I make sure I am prepared for the exam?
Last reply by Kamen rider baron, -
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Hello, I'm doing my practice math IA right now, but I'm stuck on the "interpret your data" section. My data was exponential, so now what do I do? What should i talk about? thanks!
Last reply by hakunamatata9798, -
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Here's the question: Find the Cartesian equation of the line that passes through point (4, -2) so vector [4, -2] and has a normal vector given by vector n = [2, 5] Now here's what I did: vector n = [4, -2] therefore slope of the normal = 2/5 thus the slope of the line is -5/2 so the direction vector of the line is [-5, 2] The vector equation would then be r = [4, -2] + t [-5, 2] And the parametric equations would be x = 4-5t --> t = (4-x)/5 y = -2+2t reduces to y = -1+t --> t = y+1 * Was this my critical error? Reducing when I wasn't supposed to? So then (4-x)/5 = y+1 4-x = 5y+5 5y+x = -1 But that's not the answer...it's supposed to be 2…
Last reply by IbTrojan, -
My math mark is not what I need it to be right now so I was wondering if there's anyone who is willing to help me for my last unit (somehow boost up my term mark) and exam prep. Or if anyone has any resources. I know term mark doesn't even count in the end but with the bell curve, I'm sitting at around an 88 when I need at least a 93. My teacher says I can push it up in exams since they're easier than our tests...and I've tried really really hard on our tests but it's just kind of deflating when you study your butt off for a test and still get nothing higher than a 3/4 (and that's the HIGHEST mark I've been getting). It's just tests though...in class stuff and homework…
Last reply by Slovakov, -
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Am I allowed to say that I found a curve of best fit on my calculator, or do I have to go step by step and say how I found the curve?
Last reply by worldwatcher123, -
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Hello everyone, I'm working on my Math SL IA, and I was interested in exploring the 17 different types of symmetry which can be found in everyday objects. I would take pictures myself and analyse the symmetries present within them However, I'm unsure as to whether this topic contains enough mathematics for Criterion E. Should I go ahead with it anyways? Thanks
Last reply by King112, -
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This might seem like a simple question but when do you use the "radian" mode and when do you use "degree" mode on the ti-84 calculator? When I am graphing functions, switching between the modes shows different graphs. Thanks
Last reply by IbTrojan, -
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Hi I was just wondering if anyone here has done a math standard level IA on statistics? If yes, how complex was your IA? I want to use statistics but I am afraid that it will be too simple and that I will not be able to achieve a high score with it.
Last reply by IbTrojan, -
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Hi! My topic for my math sl ia is due tomorrow and i still havent managed to narrow it down to a question. I am currently thinking about looking into currency fluctuation, or exchange rates or basically something with currency, could anyone help me?
Last reply by Maha, -
Stopping Stupid Mistakes
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Hey all, I just needed some quick advice. I just got back my results for my first Maths test which was just on prior learning to make sure it was up to scratch, and I'm pretty disappointed with my mark. There was one obscenely ridiculous mistake on the first question, in which I simply ignored my working out and subtracted instead of added, which is pretty humiliating considering I got top of the grade in Maths last year There were also just one or two other stupid mistakes, which would have ensured I got full marks, so I'm pretty annoyed about it. The problem is, I've had this issue with stupid mistakes for years, and whilst it's decreased from maybe 10 stupid mist…
Last reply by theboro76, -
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Hey! Would an Exploration on the golden ratio, specifically "Exploring the Golden Ratio - Discovery, Calculations and Applications", be too general/vague? id be planning to discuss/show its discovery and the calculations involved, then display its applications in art and nature, proving or disproving that the ratio applies to several objects. also, would the maths used be too basic for SL maths? thank you!
Last reply by DuffsterCole, -
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Hi! Below is the link to the experiment. If you could please do the experiment and post your results it would be greatly appreciated. (please let me know if you read the rationale prior to conducting the experiment) http://math.ucsd.edu/~crypto/Monty/monty.html Thanks so much!! When replying please let me know if you stayed with your original door or if you switched and if you won or not.
Last reply by bethiedrama101, -
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Hey guys, I just joined this site today because I wasn't sure if there was a specific form of organization for the Math SL IA like there is for History (plan of investigation, summary of evidence,etc) I know It's an investigation in any topic you want, and I know that it should be 6-12 pages, but how exactly do i structure the paper?
Last reply by ViolentPancake, -
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I Cant believe it. finished my math IA after 4 hours of watching the video It is so useful! absolutely unbelievable http://bit.ly/1AEM8xf
Last reply by UnderstandingScience, -
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I registered for a free IB math lesson online and it has helped me SO much. I registered for a Differentiation lesson on this site, got a lesson for free and got a level 6 on my test the next day they teach many IB questions and concepts in one lesson You guys can get your free lesson here http://bit.ly/1BiEpGs
Last reply by adamthegreat, -
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I'm doing an IA on Parallels and Parallelograms. Help please!
Last reply by A_Happy_Monkey, -
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Dude I found a really useful math question bank today. It has full solutions to many questions. you guys should check it out http://bit.ly/1ycTpA2
Last reply by edwardsteve, -
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I'm doing my math IA on the fundamental theorem of calculus. What should i focus on?
Last reply by darealest, -
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i found a great video on youtube on how to improve math IA For those of you out there who are stuck, check it out! http://bit.ly/1AEM8xf
Last reply by edwardsteve, -
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Does anyone recommend any particular books to self-study and practice maths for the May 2016 exams? I have the Oxford one, while I think it has a nice amount of exercises, I find the explanations poor and not very engaging (in other words, dislike it). Any other ones you could recommend me? I've been thinking about the Pearson one, but I'm scared of buying it since I have both of their textbooks for sciences and I'm well aware they REALLY like talking and adding extra content a little too much! Thanks.
Last reply by IB_taking_over, -
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I am currently in the second half of SL math and taking the exam in May. That being said, I'm only a junior so I have one more year of school. I will have 4 math credits that count for high school graduation. The question becomes do I take another math class next year or not take math. I wondering what everyone else's thoughts were
Last reply by Emmi, -
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Hi all, I have my Math mock exams in 1 day and basically no zilch about any of the content . Unfortunately, I have not payed much attention in class this year although once I get the hang of a topic I am quite decent, I will need a 5 on my exam in May and I am aiming for the same score on the mock exam. Would anybody here be able to give me advice on the best way to succeed in the minimal amount of time? I don't believe I have time to watch all of Mitch Campbell's videos for example but at the same time I don't think I am ready to just do practice questions without learning the content properly. Please Help!!!
Last reply by 2015lshamieh, -
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I am expecting a 2150+ in my SAT and am doing physics, chemistry and economics at higher level and maths english and hindi at standard level. Which universities should I think of applying to and which degree could I apply for?
Last reply by Veo, -
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I decided to do my exploration on climate change by comparing changes in temperature in different continents over the past few decades. I'm going to collect data of annual temperature and temperatures across 10 years or so to make exponential functions and sin functions with my GDC (line regression). The problem that I have is I don't quite get how the IA works. Is the whole idea that I set something to investigate using mathematical knowledge and concepts and come up with a conclusion of what I've found? In my case, is what I can investigate is which continenet is the most vulnerable to climate change and to what extent climate change has affected global temperature? T…
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I'm studying for my math test and there's this one question I'm just not getting. A particle moves along a horizontal line with velocity given by v(t) = 2t^2 - 11t +12 where t is greater than or equal to zero. Find the total distance the particle travels from time 2 seconds to time 5 seconds. The question also asks to find acceleration and "a" and "b" if the particle is moving left for a<t<b. Both of which I have figured out. It's just the total distance I can't figure out. We've done other problems in class and I figured them out. My teacher said just to graph it and write out an expression based on the graph and I tried doing that but...I'm getting a reall…
Last reply by IbTrojan, -
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I'm really struggling with math right now in SL i really need some insight or pointers, how do i get good or improve!! i need to do better at problem solving does anyone know any cool websites or learning sites or techniques that could help
Last reply by hpriya, -
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hey guys, can you give me any ideas what math sl internal assessment should look like? any suggestions for the topic and research question? ;
Last reply by mandarinasss, -
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like what would you recommend and how long and when?
Last reply by Kamen rider baron, -
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If an exploration is not turned in do you fail the math sl course and not get the diploma or how exactly is that factored into grading?
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So I want to write a paper and find out the correlation between GDP and birth rates. I collected data from different countries. Should I just put all of my data in one set and use them all to create one graph or should I create separate for each different country ?
Last reply by Baller97, -
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Topic: Making Music with Sine Waves I'm havingg trouble starting it. I'm currently having writer's block and i don't have a plan to start it. I need help.
Last reply by Dasani, -
Okay so, what should I include in my maths IA to achieve maximum marks? IA's are really important to me as support, and my teacher isn't really of much help to be honest. Oh and, what should I include on my cover page? Thank you!
Last reply by Csaba Goeroeg, -
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Good afternoon people of IB survival, you have saved me before and now I need your assistance again. As I am a procrastinator, like most people who frequent IB survival, I have left one more thing for the last night. I have been asked to choose my Maths SL exploration question and must deliver it tomorrow. I want something football related and using IB Maths resources I have come up with: Does sacking a manager improve results?Do Premier League wages predict league positions?Now, which one do you think will be easier to write more on? Which one will be easier to find information on? and What type of maths do you reckon will I have to do for both? (Calculus, Trig, stat…
Last reply by lkb97, -
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In the Math SL exploration, I have to address two of the Group 5 aims. I chose “enjoy mathematics, and develop an appreciation of the elegance and power of mathematics,†and “develop an understanding of the principles and nature in mathematics.†How do I show this? I'm doing the spread of Ebola as my Math SL exploration topic.
Last reply by IbTrojan, -
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The first semester just ended and I finished math sl with a 4 which disappoints me. The 2nd semester started and we had a quiz and I got a 3 on it. I study the material and do practice in the textbook but I still need to do better. Does anyone have good tips on how I can improve in math SL?
Last reply by IbTrojan, -
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Like say for example, I am doing my Math SL IA on a specific formula, and my calculus book as the steps to derive the formula. Am I allowed to use the work, as long as I explain it?
Last reply by Sofia., -
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Could someone explain to me how to do the following (in steps): (This is a question from my exam) -Knowing that the third term is 10 and the fifth term is 16. a) What's the first term? b) What's the common difference? c) What's the sum of the first 20 terms?
Last reply by AndovarEdoras, -
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I urgently need help! I am doing my Math IA for standard level and the topic I have chosen is: to find a correlation between GDP and Life Expectancy. I have chosen 3 Less Economically Developed Countries and 3 More Economically Developed Countries. However, I am struggling to make this appropriate enough for Standard Level!! Any ideas on how I can make this more complex for SL (instead of something SL appropriate?)
Last reply by ameliakj,
