Maths SL
For Math SL discussions
1,591 topics in this forum
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- 4 replies
- 844 views
So i did the maths SL TZ2 exam, paper 1 went great, i only partly messed up one question, but all the rest was good, however i completely died in paper 2 and missed out on like 20 marks! Assuming my IA are at level 6, is it still possible for me to get a 6 overall??
Last reply by difiCa, -
- 4 replies
- 1.8k views
Hey guys, I was wondering how we show work if we use our gdcs in paper 2... like, if we use binompdf ( x) we go, "used gdc, binompidf ({x}) or smth?? srrry im just really worried about losing marks for not showing work
Last reply by Sandwich, -
- 3 replies
- 945 views
Ok, so I have one question why here: http://scr.hu/0hj9/rd4ryin a) at gdc screen upper we have 1E+07whereas here http://scr.hu/0hj9/d4jdx it's 1E+99 ?
Last reply by Egos, -
- 3 replies
- 734 views
So it may be a little late to ask, but it really bothers me: in some markschemes, in questions where we're supposed to draw a graph it sometimes says: award marks for maximum point in circle etc. and sometimes doesn't. Does it mean that I'm actually supposed to circle something even if the question doesn't specifically ask for it or it's just a circle for the examiner? And if I am, how do I know what and when?
Last reply by Egos, -
- 5 replies
- 2k views
I'm having my math 2 sl paper this friday (duh), and I did some big mistake last weekend I brought my graphic calculator to do this other test, and I kind of... Lost it. It was a TI-nspire I currently have a borrowed TI-84, used it for my physics papers But I'm afraid I'm a total caveman with the TI-84 So I'm really considering the possibility of not using a graphing calculator for paper 2... Is that even possible? The thought of failing my IB test has been haunting me ever since I lost my nspire, and the chances of me being able to borrow one for friday seem very slim
Last reply by Nrsander, -
- 2 replies
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I've never really practiced much with my calculator before now, so whenever a binompdf or a binomial question would pop up I'd hurt real bad.. I once drew a pascal triangle to the 10th row because I forgot how to do the format for the nCr thing lol. I also die in vectors questions.. ugh Also, if you could post them here, would be a nice way to review for tomorrow I guess haha Cheers!
Last reply by Ibomorelikeibno, -
- 1 reply
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What are you supposed to Tick on/off when putting the TI-Nspire on Press-To-Test Mode? please answer ASAP as I have Paper 2 Math SL tommorow morning!!!
Last reply by XeoKnight, -
- 4 replies
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Okay so aside from these: http://ibvodcasting.com/category/topic/ti-tips-using-your-graphing-calculator-effectively, what are other effective ways to use the calculator to maximize time during the exam and make those mind-f*cking questions easy as pie? Are there any apps you recommend as well?
Last reply by Matsu, -
- 35 replies
- 11k views
Hi everybodyy, was just wondering - what is considered to be the hardest topic of the SL course?
Last reply by Matsu, -
- 2 replies
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desperately looking for a mark scheme exam is tomorrow !!! or at least help with question 5-7 9 and 10 !!!!! N12/5/MATME/SP1/ENG/TZ0/XX mark scheme THANKS !
Last reply by laura08, -
- 2 replies
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Hey, I just finished my Maths IA type I (Lacsap's Fractions) and it is 35 PAGES LONG! Almost 6,000 words. Is that okay ? Is there any sort of word limit or anything? Thanksss
Last reply by Sammy, -
- 2 replies
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Okay, so I'm hoping I wont fail Math SL. but hypothetically if I do will my IA's cover my a**? Lets say I get a 1 for both paper 1 and 2 but I got a 5 in total for my IA's, what would I get as a final grade? And lets say I get a 2 for both paper 1 and 2, and still got a 5 for my IA's, what would I get? Thanks so much, IDK why I didn't take studies....
Last reply by difiCa, -
- 6 replies
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Hey Guys! I pray everyone who is doing their exams this May 2013 does well! Good luck to you all I just have a couple of Math SL questions that are really bugging me: 1. The equation x^2 − 3x + k^2 = 4 has two distinct real roots. Find the possible values of k . I kinda got started off but I'm pretty sure I'm wrong. 2. The line L passes through the point (5, − 4, 10) and is parallel to the vector (4 -2 5) The Line L intersects the x-axis at the Point P. Find the x-coordinate of P. My first post here so HELLOOO
Last reply by Rahul, -
- 5 replies
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Hello! So I have my exam in about a week. I have used past exams from 2007-2012 as a study tool. In addition, I also decided to use the question bank as a study tool since there are so many questions. My question is, should I have another study tool? By using these materials would it be enough to excel in both paper one and paper two? I would really appreciate if someone would reply as soon as possible. Thank you
Last reply by ashley patel, -
- 3 replies
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How far should I go in studying the past math exams? 'Cause I'm doing them from newest to oldest, but I've heard that there have also been curriculum changes too. Right now I was thinking of just going up until the 2006 exams, what do you guys think?
Last reply by candy6, -
- 8 replies
- 12.2k views
Hi! do you know to how many significant figures we should round up our results if the prompt of an exercise does not specify? also can you explain how do we calculate significant figures? Thank you in advance.
Last reply by susanne, -
- 1 reply
- 1.3k views
Hi everyone ! It's about my math exploration, I need help for choosing my topic .. Can anyone give me some ideas or explanations of what I can do or what shall I do ? I know that I can ask my teacher, but before I would like to have some ideas .. Thanks
Last reply by RainAL, -
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Ok so the problem is as follows: "A tractor is moving across a field at 10Km/h on a bearing of 150. Express its velocity vector." Can anybody solve this? thank you in advance.
Last reply by CkyBlue, -
IA My IA survey
by KIN- 1 reply
- 782 views
Please do this survey and help me do my math IA. when i say study i mean hours spend doing math (homework, exercise, reading about math) http://www.surveymonkey.com/s/NZ2RKNN
Last reply by alefal, -
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I'm so nervous because I spent most of my time studying for my physics exam, since I'm **** at physics, and up til now I've mostly neglected math. I'm really good at math though; I've been predicted at a 96. But still, I've only really covered matrices, and I still have so much to do.Is two weeks enough time to cover everything?
Last reply by howerabin, -
- 1 reply
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Hi everybody, so I already (well kind of) have a topic for my maths IA, which is origami with architecture. however, when I first showed it to my teacher, he said it is related to complex numbers a bit which is in maths HL, so I could be marked down if I should continue with the topic. Nevertheless, I still want to do something with origami because I really find it interesting but I'm also find that it's pretty hard to narrow down the topic. My teacher did suggest about relating origami with airbag's folding. Can anybody please give me suggestion(s) that I could narrow down the topic from origami, please?
Last reply by IBTutorOnline, -
- 6 replies
- 30.1k views
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, -
- 5 replies
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So generally the problem is that we didn't really work much with gdc and most of my classmates don't own a gdc. So sometimes we use it in classes but reeeeeaaally rarely. I know that there are some guides on using the gdc, I have found some. But my question is what exactly should I be able to do on gdc for the exams? Like try pointing out such things as '3x3 matrices' etc. I would be very greatful for any ideas.
Last reply by susanne, -
- 2 replies
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Recently, one of my more idiotic friends (to be specific, a friend of a friend) decided to spam the Google Docs survey I had set up for my IA. As a result, my data crashed and was completely wiped. :/ My topic is the correlation between viral video awareness and gender, so if you would please fill the survey out at this link: https://docs.google.com/forms/d/1gUYo7kGDhwCrlbJzCHMqK-uDnWqfmDA8AgHNDFZeRfs/viewform The more replies, the better. Please help - because of this, I've been set behind by a lot. Your participation is greatly appreciated. Thank you!
Last reply by cricketcrazynerd, -
- 1 reply
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Hi, I would be glad if someone could upload a Math SL Revision guide or Math SL Revision notes. Thanks!
Last reply by dniviE, -
- 6 replies
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Hey guys, My friend wants to know if there is a way to boost his grade from a 2 to at least a 5 in two months time. He doesn't really get what's taught in class and he has tried pretty much everything from Khan academy to tutoring. He's kinda good in most of his other subjects and maths is the only thing pulling his total grade down, so he's really desperate to get his math grade up. Any tips?
Last reply by aurora1234, -
- 17 replies
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I'm doing a survey to see if there's a correlation between religion and favorite topic of study. So if you please, answer the following two questions: 1) What's your favorite school subject? (Ex. Math, Science, English, History, Music, Sport, Language) 2) Do you believe in God? Yes/No/Maybe Thanks in advance!
Last reply by pinkhoodie, -
- 3 replies
- 1k views
A geometric series has a first term 400, ten terms and a sum of 1295.67. What is the common ratio? I am not sure how to solve for r^10. Can anyone help me?
Last reply by SurajM, -
- 4 replies
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Well, in May of this year (2013) I am having my VERY FIRST IB EXAM! I am sooo nervous! But I wanted to know how those of you that have already done your exam, studied for it. I haven't started yet, but am in a couple days giving myself around 28-30 days to study. Is that enough time? What is the best way to study in your opinion? Any information is appreciated! Thank you
Last reply by ~Lc~, -
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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Hey guys, I would really appreciate any kind of help with this problem: "A spring is suspended from the ceiling. It is pulled down and released, and then oscillates up and down. Its length, l centimetres, is modelled by the function l = 33 + 5cos((720t)°), where t is time in seconds after release." I got stuck at c, where it asks me to find the first time at which the length is 33 cm. Of course I could do it using my GDC, but according to the markscheme, there should be a much easier way to solve this. Unfortunately, even though I have the results with me I just can't see why it is the way it is... What the MS says is to set up an equation 33 = 33 + 5cos 720t, which g…
Last reply by mrcrazyog, -
- 518 replies
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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, -
- 3 replies
- 2.6k views
I have been told that before the exams teachers reset your calculator. I am a little worried about this because I installed the ndless mod in my calculator and I am not sure if this reset is going to mess up everything. How do they reset the calculator? I know that just by pushing the reset button at the back of the calculator does not erase your files. Do you think I should uninstall the mod before my exams? Thank you. Greetings from México.
Last reply by theboro76, -
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Hello everyone, So I am currently working on my Math IA, and i need to collect data for my project. I'm trying to see if there is a relationship between gender, and if there's a preference to a certain type of instrument. For example, guys might like louder instruments such as an electric guitar or something. So if you could provide your age, gender, ethnicity,and the instrument type you like the most. (Percussion,Strings, Brass, and Woodwinds) I would appreciate it.
Last reply by cricketcrazynerd, -
- 1 reply
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Hello Everyone:) I was just wondering if anyone with a bit of knowledge/past experience could help me with my predicament. I am taking SL Math at my school and we just received our IA marks (pre-moderation) and I got a 22/40 (10 on one, 12 on other). I'm terrible at essays/organization and our teacher only helped her favorites. Otherwise, I'm pretty decent at math - got only 7/6on my tests/quizzes - and am certain that I can pull off a 7 on my exam with crazy studying. But someone told me that even if I get 100% raw that I can't qualify for a seven because I didn't do well enough on my IAs. Is this true? Does that mean I can only get a 6? Is there any chance that my mark …
Last reply by Ayedott Gee, -
- 3 replies
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Are we allowed the Data booklets for math sl? if not.... when did they stop giving it out... it would've made my life so much easier "
Last reply by dniviE, -
- 3 replies
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Hi does anyone have, or know where I can find a sample type 1 IA that got a high mark (preferably with the marking scheme). It cannot be Lacsap's Fractions though. Thank you!
Last reply by InternationalBabe, -
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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 -._._.-, -
- 3 replies
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Hi everyone! I just got given this internal a few days ago, and we have never learnt anything more than 3nd degree polynomials in class, however the only graph I can get to model the data is a polynomial to the 8th and 9th degree. Something surely can't be right... How is everyone else modelling the data? Thanks!
Last reply by Gaby, -
- 5 replies
- 1.3k views
Any general tips? Thank you
Last reply by SurajM, -
- 2 replies
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Hi, I have solved all my equations using MS Excel and have hardly shown any working in the Math IAs. I think you are supposed to show all the stages of your working in the assignment, but Excel does all the steps automatically once you type in the formula. I have copied the Excel formulas and mentioned them in the footnotes as references, but they involve Excel cell addresses which I dont think would make sense to a reader who is not reading it on the Excel sheet but reading it out of context on MS Word. Can I attach the excel sheets along with the IA doc or images in appendices? Does IB get a hard copy of the doc or a soft copy? Thanks a lot (: Pls reply ASAP, it's due t…
Last reply by The Rainbow Connection, -
- 4 replies
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They say practice makes a man perfect, but how should i practice math is the big question. Any advice on methods to practice? I tried using the textbook and khanacademy.org but the result aren't what i expected.
Last reply by cricketcrazynerd, -
- 2 replies
- 1.4k views
Hey guys! I'm doing the 2013 Circles Math IA and I got a 17 on my last IA. to get a 7, in this course, I need to get atleast a 15 on this one. I am using similar triangles to solve this IA, my teacher said if my introduction isnt good, my overall math Ia mark will be low. Therefore, can someone please post up a very good explanation why similar triangles can be used? THerefore, I can use it to judge my introduction to see what I need to include or take out? Thanks! Please reply ASAP!
Last reply by angels1, -
- 1 reply
- 1.5k views
Hello, Can you please explain what the term parameter means in maths, and specifically in the context of the gold medals IA? I've learnt that parameters are similar to constraints, but the IA asks for both parameters and constraints separately. I'm confused now. Thanks!
Last reply by Mahuta ♥, -
- 12 replies
- 2.7k views
So I will be starting the Math IA training course soon this week. I am expected to submit my topic by next week. Any heads up?
Last reply by carpediem, -
- 1 reply
- 756 views
Basically, i have to do an internal assessment on Lacsap's Pyramid, and i was wondering if i could hand write the internal assessment rather than typing it up since i do not have the new microsoft word, or a good graphing program on my laptop. If i can't, could someone suggest a good word documenting software and graphing program, many thanks, Chris.
Last reply by Nabz, -
CIRCLES IA
by candy6- 3 replies
- 2.8k views
For the Math SL, Circles IA: For part 3, where it says: "Use technology to investigate other values of r and OP. Find a general statement for OP'. How many other values do you suggest that we should try for r and OP? And should it just be numbers like when r=2, find OP' when OP=2, OP=3, OP=4. Or should I use numbers like decimals?
Last reply by cuurent_ib, -
- 2 replies
- 3.6k views
My teacher assigned a Math IA, and the topic is Pricing. He didn't really explain anything and said that we were free to do whatever we want. I've decided to compare Microsoft and Apple stock prices (my teacher approved the topic), but I'm afraid that the IA will lean towards business rather than math. Do you have any suggestions as to how I can focus on Math? The best I'm coming up with is comparing the graphs of the two companies. Any help is appreciated!
Last reply by Nikita K, -
- 2 replies
- 3.5k views
Hey guys! I need help with my Math IA that is due on Monday.. three days left.. I have some questions to ask: On the Gold medal heights there is a questions/statements: "Use technology to find another function that models the data. On a new set of axes, draw both your model functions. Comment on any differences Discuss the limitations of your model. Refine your model if necessary.." What do they mean by comment on any differences? On the original graph and the one I have obtained algebraically? The thing is that the "original graph" were only the data points without a function modelling it.. What in the world am I supposed to do? What are the limitations of a linear fu…
Last reply by Mahuta ♥, -
- 6 replies
- 1.2k views
Hey, I am thinking of choosing Math sl next year and I wanted to ask you guys who probably know how I should prepare myself for it. I am weak in math but I want to go in sciences so i have to take it. Can any of you guys please tell me how you guys study for Ib effectively for math and how I should prepare myself over the summer for it. Thanks
Last reply by IBchicken,
