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    • From the Arrhenius equation, k = A exp (-Ea/(RT)), taking ln of both sides ln k = ln A - Ea/(RT) = -(Ea/R) T + ln A, which is the equation of a line with slope -Ea/R and vertical intercept of ln A. So if you know the slope you can find the activation energy k is the rate constant such that the "rate of change of [H2O2]" = Δ[H2O2]/Δt = k [H2O2] (first order rate law). By unit analysis, k has dimension of inverse time. Hope that helps. There should also be videos online of teachers walking through the data processing. 
    • So I had an idea for a RQ for my History EE, but I'm not sure what question i should use. I know I want to do something about the US Civil War and the role that civic rights played in it. So for now my question is : What role did civil rights play during the different stages of the American Civil War? I'm not sure if the question is too precise or too vague, so if possible I would like certain guidance concerning the RQ. And if u have any better ideas for a EE concerning the Civil War, please let me know
    • Hello! Thanks for your great feedback and congratulations for such an amazing final score
    • Hi, I just finished the personal project and got my results. I totalled 31/32 points so I guess I would be a reliable source. I 3D modelled (and printed using a 3D printer) a preservation chamber simulating cryonics and wrote a155 page scientific report/book on the feasibility of cryobiology in the past, present and future.  First question - My school gave us internal deadlines to follow. However, many students in my year group didn't follow these deadlines and ended up rushing before our final deadline in March (many of them ended up getting poor grades + 2 students failed). If your school doesn't have these deadlines, make your own!  In terms of supervisors, I would just bombard them with endless drafts of the report. I asked my supervisor 4 times and my personal project coordinator to also give me feedback. Use successful reports as guides, you can find plenty online (I found and printed them out) or from your school. So to sum up, most schools do but even if your school doesn't have the necessary support, you can still score high using resources online.  Second question - You don't need tutoring for PP, I wouldn't care at all!  Third question - You have the internet full of people who went through the PP. By just sign-posting the criteria for the PP and by getting as much feedback as possible (from teachers or even from the internet), that would be enough. I'm not saying you shouldn't but I would recommend doing so.  Fourth question - No, sorry.  Hope this helps! 
    • The key is that the new AA HL is easier than the current HL, with an entire Option removed (the Option takes about 3 months to cover if having classes 5 times a week going at a moderate-fast pace). You are correct that AA emphasizes on algebraic working and mathematical rigor, as well as only AA Paper 1 forbids calculators. Calculator questions are not necessarily easy. Also AI HL Paper 3 has two 30-minute questions. Imagine making a mistake early into a problem. The following is my second attempt to quickly compare AA with AI HL, categorized by "big" units. Topics in both: sequences/series, complex numbers, functions and transformations, geometry, trigonometry, vectors, data analysis, distributions/random variables, differentiation/integration, and ODEs.  Topics in AA HL (~10% of the course): combinatorics, and elementary proofs Topics in AI HL (~40% of the course): matrices, eigenvalues/eigenvectors, group theory, modelling, and statistical tests  At the end of the day, it comes down to whether you want to study 12 topics (AA HL) somewhat evenly or 15 topics (AI HL) at varying depths, including deeper coverage of data analysis and ODEs than AA HL as well as thorough coverage of matrices, group theory, and statistical tests. The problem is that many AI HL topics have steep learning curves at the beginning (especially group theory and statistical tests), whereas most of the AA HL topics are simply continuations of SL. Hope that paints a more complete and accurate picture of AA and AI HL. 
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