Our gifted program seems to be excellent. It starts in 4th grade. The kids in 4-6th grade cover 4 years of math in 3 years, so they eventually take Geometry in 8th grade, Algebra II in 9th grade, Pre-Cal in 10th grade, Calculus AP-AB in 11th grade, and Calculus AP-BC in 12th grade (if you want to go that route).
So the gifted program kids end up skipping 1-2 years of math over the regular program. I'm sure the English part is similarly accelerated.
That program is typical of the well run school districts in the DFW area for "honors" track students. IMHO a truly accelerated program would see Calculus done in the 10th grade, with Diff-EQ+Multiavariate Calculus/Real Analysis in the 11th and Linear Algebra/Abstract Algebra in the 12th. I'd add in a Logic class in the 10th as a prep class.
For physics, we'd get the normal HS stuff out of the way by the 10th, then jump into statics/kinematics in the 11th and a full electromag in the 12th.
You could teach stats in a good physcial chem class in the 11th then do organic chem in the 12th.
Round it out with lit and history classes that have a heavy literary criticism, public speaking, and essay part.
Add a third year with summers, and the students could have a BS out of the way then be ready to get certs in a given field, finish up upper division specific classes at the U, ie Engineering or Accounting degree, or go into grad school.
