A1
Constants and Units
Reference material used across every module: the constants of nature, and the scale words attached to their units. — 1 units.
A2
Problem Patterns
Four habits that apply regardless of which module a problem comes from. — 1 units.
A3
Connection Map
Several equations across this reference are the same mathematical statement wearing a different label. — 1 units.
A4
Notation
A short reference for the notational choices used consistently throughout. — 1 units.