Ant1234 Posted July 17, 2012 Report Share Posted July 17, 2012 Hey, just wondering if you're doing HL bio do you need to relate the ia to a component in the HL Syllabus? Reply Link to post Share on other sites More sharing options...
Ace Posted September 21, 2012 Report Share Posted September 21, 2012 Hey everyone!My biology HL teacher told my class that a hypothesis is not needed in the design lab IA and her reason is that the criteria does not explicitly state that you need one. I don't believe that because most of the guides I've seen on the internet mention a hypothesis and my labs in Chemistry SL do require the hypothesis. Is my biology teacher correct?Thanks for the help! 1 Reply Link to post Share on other sites More sharing options...
don't you wish Posted September 28, 2012 Report Share Posted September 28, 2012 You just enabled me to actually write my FIRST EVER IB LAB REPORT. I love you guys. 1 Reply Link to post Share on other sites More sharing options...
NewToIBDP Posted October 18, 2012 Report Share Posted October 18, 2012 (edited) Hey, thanks a ton for the information! It helped a lot! Also, I don't understand the need for creating duplicates. Can you please explain it to me and tell me if i need it or not? Edited October 18, 2012 by NewToIBDP Reply Link to post Share on other sites More sharing options...
Charliepants Posted November 25, 2012 Report Share Posted November 25, 2012 Thank you so much! My first biology report is due midnight, and I wasn't really sure about how to write it with the assessments CE.Before we would just go through all the criteria: Hypothesis, materials, method, etc.Although our teacher had gone through what the report needed to contain, I wasn't sure how to begin.Thank you! Reply Link to post Share on other sites More sharing options...
Milkaturtle Posted December 4, 2012 Report Share Posted December 4, 2012 Thanks a lot for this amazing summarry. It is really clear and easy to understand, but I want to make sure that I understood the part of data presentation correctly. Data presentation is about how I present collected data and data processing, right? For example, when I give a graph, which shows percentage of plasmolysed cells (which falls into a data processing category), it is already data presentation, isn't it? Reply Link to post Share on other sites More sharing options...
Mahuta ♥ Posted December 4, 2012 Author Report Share Posted December 4, 2012 Yes data representations is basically the tables and the graphs you use. Data processing sort of goes into the same thing, processing data is basically finding the average, the percentage in some cases doing the statistical analysis and representing those in appropriate graphs. Reply Link to post Share on other sites More sharing options...
sofia_bremen Posted January 22, 2013 Report Share Posted January 22, 2013 I've a question about the variables. If for example my independent variable is Different Salts (NaCl, PO4 and NaNO2), how do i measure or control it?Thank you very much Reply Link to post Share on other sites More sharing options...
Mahuta ♥ Posted February 5, 2013 Author Report Share Posted February 5, 2013 In an experiment, you have an independent and a dependent variable. If your independent variable is the salt you're using, then you should have one dependent variable (e.g rate of reaction or time requires for this to happen) and the rest are controlled variables ( concentration, temperature..etc). Basically, the only thing you're changing is the type of salt. I am not sure I answered your question there, but telling me more about the reaction may all me to help you more. Reply Link to post Share on other sites More sharing options...
Ez 7 Posted February 5, 2013 Report Share Posted February 5, 2013 Hey, just wondering if you're doing HL bio do you need to relate the ia to a component in the HL Syllabus?Nope just like in every other HL subject, you do the your IA's according to the SL syllabus. Oh wait ... Reply Link to post Share on other sites More sharing options...
Mahuta ♥ Posted March 9, 2013 Author Report Share Posted March 9, 2013 Actually, you don't have to do it according to the SL syllabus if I am not mistaken. There is nothing in the syllabus that says that. Similarly, it doesn't have to be based on HL content either. As long as its something related to the syllabus as a whole, in other words..related to one of the topics covered. Reply Link to post Share on other sites More sharing options...
RainAL Posted March 9, 2013 Report Share Posted March 9, 2013 In MYP we are given a guide on how to write a lab report:Research Question - should include both independent and dependent variable and their measuring unitsPrediction & Hypothesis - What you think will happen and why. Better to give some scientific reasoning to support hypothesisVariables - Independent, Dependent, and Controlled. Explain the controlled variables and how they make the experiment "fair"List of ApparatusDiagram of ApparatusStep-by-step method in third person that would enable any other person to do the experiment and get the same resultsResultsConclusion - did your results coincide with your hypothesis, why or why not? comment on the reliability, fairness of the dataEvaluation - improvements in experiment, strengths and weaknesses. Recommended to make a table involving source of error, how it affected the experiment, and procedural improvements Reply Link to post Share on other sites More sharing options...
Mahuta ♥ Posted March 9, 2013 Author Report Share Posted March 9, 2013 Close enough, but in DP you have to concentrate a bit more on the results part--> data presentation and data processing. It takes 1/3 of the note and one of the main criteria in assessment. 1 Reply Link to post Share on other sites More sharing options...
Laila110 Posted March 13, 2013 Report Share Posted March 13, 2013 Hi, in my lab report I put a solute concentration in a test tube with a spaghetti straw that I had noted the weight of from before in 20 hours to see if the weight have changed or not. In my raw data table, I am including the initial weight of the spaghetti straws and the final weight after the solution. In addition, I am calculation the differences of the weight in both grams and percentage. Then I am calculating the mean percentage change. Is it correct to find the mean from the percentage change?My second question is, am I supposed to calculate the standard deviation by using the numbers from the change in grams of percentage, or by using the numbers from the mean percentage change, or by using the initial or final weight of the spaghetti straws? Reply Link to post Share on other sites More sharing options...
IBdoingthistosurvive Posted October 24, 2013 Report Share Posted October 24, 2013 Doesn't mean you can't include a hypothesis, it makes it better, hence the title.Do you have any tips/formula for writing a good title? Reply Link to post Share on other sites More sharing options...
IBdoingthistosurvive Posted October 28, 2013 Report Share Posted October 28, 2013 Hey guys, i'm doing my first IA and it's a design lab. Our teacher really didn't give us any helpful guidance relating to the investigation topic which is: Investigate a factor that effects transport across the membrane of a cell.All I was wondering is if i'm on the right track with my brainstorm of factors, any help would be much appreciated - manipulating the pH - solute concentration- number of channels- size of channelsThanks in advance! Reply Link to post Share on other sites More sharing options...
DekuHero Posted December 14, 2013 Report Share Posted December 14, 2013 Thanks for this guide! I'll definitely be using this a lot Reply Link to post Share on other sites More sharing options...
HaleyEveKayla Posted January 12, 2014 Report Share Posted January 12, 2014 Can I used the lab instruction sheet provided by my teacher for the background information, outline, variables, ect. or would that be considered plagiarism? I wouldn't want to get kicked out of the school for just trying to do a good first IA. Reply Link to post Share on other sites More sharing options...
otakuoutsider Posted January 15, 2014 Report Share Posted January 15, 2014 my biology teacher told me that in DP you don't need to put in a hypothesis, is that right or is my teacher wrong? Reply Link to post Share on other sites More sharing options...
Shay Posted January 28, 2014 Report Share Posted January 28, 2014 Hi ! I have a question regarding uncertainties and percentage error.. do we calculate the % error and show the working and is it required?.. and is the uncertainty applied to graphs and tables (as in stating the uncertainty in the table) .. or do we have to show the calculations of uncertainty ?Thanks. Reply Link to post Share on other sites More sharing options...
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