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Hey guys! So I had an idea about my math IA and discussed it with my teacher who seemed to like it but I still have some concerns. My idea is essentially modelling newtons cooling curve and then use calculus to turn that curve into a linear equation and use linear regression and squares to find the line of best fit however I feel that the idea is not complex enough and does not go "beyond" the HL syllabus as I have seen with some other IAs

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There are better ways to approach Newton's law of Cooling then using modelling. After learning core calculus you hould have enough skills to derive the curve

Generally i only recommend regression at HL if you at least partially derive the formula (using calculus).

As long as you can clearly explain your process you will be ok. The IA does not have to be super complex.

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