ACT Study Guide — High-Yield Terms & Concepts

190+ high-yield terms & concepts for the Enhanced ACT

A comprehensive ACT prep workbook with 190+ high-yield terms and concepts organized for the Enhanced ACT — digital-first, Science optional, composite score 1–36, four answer choices, and no wrong-answer penalty. Covers English (grammar, usage & rhetoric), Math (algebra through statistics & probability), Reading (including paired passages), optional Science, optional Writing, and a full test-day strategy section. Every concept pairs key facts with an ACT strategy tip and a practical example, plus an exam overview, final review, and a 10-point test-day blueprint. Independent study aid — not affiliated with, endorsed by, or sponsored by ACT, Inc.; ACT is a registered trademark of ACT, Inc. Verify current format and policies at act.org before your test date.