Many charters offer an A-G and a non A-G option. Most provide funding which allow a student to purchase online courses, enrichment activities, and supplies. The amount funding for high school students ranges between $2,600-$3,200 annually.
The A-G track
Each school has different methods for providing A-G approved courses with some being completely virtual or completely textbook or mixed. A school may offer their own online courses, or they may use a learning platform such as Edgenuity, K-12, BYU, or Apex. Each charter differs in their online options with some offering a large variety of courses from different online vendors and others offering limited choices.
A limited number of charters also offer classroom based A-G approved courses using their own staff or local learning center courses which have been pre-approved.
The non A-G track
This path varies from charter to charter. For some programs parents are given an outline to follow which cover california common core standards. The parent has flexibility as long as they cover what is in the outline. Schools have outlines for required courses and will also have a large selection of elective outlines. If a student would like a course that is not offered (no outline has been created) some schools will allow for a parent to create their own while others make adding a course very difficult.
Some charter schools allow curriculum to be used for the non A-G track. Typically this curriculum must be approved and most follow common core standards. Some commonly used homeschool curriculum is not approved, or will only be approved with additions because it does not meet California standards. Luckily most well known curriculum has been updated to include the requirements of common core so this is often not a problem, but a parent must check with the charter school to insure that their favorite curriculum is approved.