Offering IB diploma content

I've found that much of the content on Khan academy is tailored for American secondary school curriculums, such as AP classes, SAT, etc. It would be great if resources were offered for international programs, like the International Baccalaureate Diploma Programme.

This might include maths courses for AI and AA, as well as for some content-based subjects, like many of the STEM courses, including IB Biology, ESS, etc. 

Whilst many of the resources for American-focused courses are useful, they often cover a very different scope of respective disciplines.