Core Materials - required tools
We use the term "Core Materials" to describe the core teacher and student resources and tools that are required in multiple Logic of English programs. These include most of our Flash Cards as well as the Game Cards, the Game Tiles, the Student Whiteboard, and Phonogram & Spelling Rule and Spelling Analysis Quick Reference.
For each volume of a Logic of English curriculum, you will need the books specific to that volume (and sometimes other required items, like the Morpheme Cards, that are specific to that volume), plus a number of LOE Core Materials. Once you purchase the Core Materials, you can reuse them throughout the volumes of any LOE curriculum.
The first set of each curriculum includes the Core Materials you will need to start that program.
Supplements - optional add-ons
We use the term "Supplements" to describe all the optional add-ons items we create that are not required for any Logic of English curriculum, but which may be helpful as supplements.