Mr. Lange's Home Page

What time is it?
It's math time!!!
2020-2021 Update
If you missed Back to School Night.....
Welcome to my page at
I have materials at and Schoology
I teach advanced math like Precalculus, AP Statistics and AP Calculus, AP Computer Science as well as the occasional Geometry and Algebra class to students in the School for Advanced Studies. 
What is a Mr. Lange class look like?
  • Technology- Students must use computers and calculators regularly to succeed
  • Responsibility- Students are responsible for their own learning.  I can only provide the tools, it is up to students to do the work to learn.
  • Variety- I use many different resources including textbooks, worksheets, games, videos, websites and slides to help students learn 
Sharpen your pencils.  There's a lot of work to do.
For a great online program to start math over all over from the beginning, start at  
It has youtube tutorials from basic math through calculus as well as tutorials in other subjects.  Read more about Khan Academy HERE.
Students should also log in to IXL to level up regularly