High school students enrolled in the International Baccalaureate's Diploma Programme are required to study mathematics as one of six subject groups and must take at least one math course. The IB ...

Bill Horkan has been a math teacher in Fairfax County, Va., for 24 years. His work has been mostly in the International Baccalaureate program, a challenging introduction to college-level work.

Jazeba Ahmad was a junior in high school when Covid-19 hit and her math education faltered. Ms. Ahmad was enrolled in an international baccalaureate math class intended to provide a strong ...