A program or curriculum that provides additional instruction or learning opportunities outside of the core curriculum. Students may get supplemental instruction from a teacher or online (or outside-school) source.


Many of the programs developed for schools are not intended to replace teachers but instead are designed--at least originally--to supplement, or add to whatever teacher-led curriculum is taught. 

Supplemental materials may be delivered online or may be provided in the classroom by a teacher--they're simply outside the scope of the official curriculum. 

It may not be easy to "link" supplemental material to the teacher-led lessons. The easiest material to link directly to the lessons taught in class are "assignable" programs. If a teacher has structured a class according to, say, either state or Common Core standards, then it may be possible to "synch" supplemental material according to the standards.

 Alternatively, teachers may let a program set the pace for learning; the teacher then can choose to  sequence other materials and classroom discussion accordingly. 

Frequently, such supplemental computer-based instruction offers opportunities to either reteach concepts or drill on concepts along a track that may be parallel to teacher-led programs.

Note that "supplemental" materials are different from "specialized core" materials, which are curriculum on subjects other than math, literacy, science and social studies. (Economics, for instance, can be a "specialized core" subject.) 

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