It’s almost that time of year when International Baccalaureate students start working on their IB Mathematics/Calculus 1 portfolios. I fondly remember the time I spent writing each portfolio from scratch. It was a worth while experience. The first portfolio focuses on finding relationships to the way mathematics works. The second focuses on analysis of data to find patterns and relationships.

The possibility of IB offering the same prompts for the portfolios this year are incredibly slim.

### Logarithms

I managed to get a 90/100 with this one, even without knowing fully what to do. That’s a pretty good score. Essentially, this should help you understand the components to a portfolio.

Remember, you need to find the pattern; make some of your own original examples and define the scope and limitations.

You can download a PDF version of the Logarithm Bases portfolio too.

### BMI

Although I thought it was an odd prompt, IB decided to talk about girls’ BMI. This portfolio asked me to find a model for girls’ BMI. I found a few patterns but I settled on a sinusoidal pattern. This portfolio was much longer spanning ten long steps. I don’t know if there was any better model than the one I found either. I managed also a 90/100 on this one.

You can download a PDF version of the Body Mass Index portfolio too.

It should have been made clear to you too that you can’t take my work and pass it off as your own. Absolutely not. So if you do happen to get these prompts again, you’ll need to credit me if you take *anything* from my portfolios or the *heavenly IB fire* will rain down from the sky and *strike* you. It should be permissible to use my example as simple structural ideas so that shouldn’t need any credit.

Good luck with your portfolios!

What I meant by my earlier comment was: is 90/100 a level 7?

I don’t know what the rubric IB uses insists upon. I somehow doubt the portfolios are scored on the same curve as the actual exams. You might ask your teacher what 90 points out of 100 points would translate to.

Thanks for the help bro!