About
The Key to series is a set of slim, single-topic math workbooks originally published by Key Curriculum Press and now distributed by McGraw Hill. Each strand — Fractions, Decimals, Percents, Measurement, Algebra, and Geometry — is broken into four to ten consumable booklets that walk a student through the topic step by step. Lessons are plainly presented with worked examples followed by practice. Homeschoolers commonly use Key to booklets to remediate gaps, to give a struggling student a confidence win, or to provide extra practice alongside a primary math curriculum.
Signature products
- Key to Fractions
- Key to Decimals
- Key to Algebra
- Key to Geometry
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