Foundation

Name the difference between similar terms

Whentwo terms start to blur together

Put the two definitions side by side. Name the feature that distinguishes them and give one example of each. Check both examples against the definitions before using the terms again.

Try saying
A 2 × 3 rectangle: perimeter is distance around, 10 units; area is inside coverage, 6 square units.

Start tiny

Name one defining difference.

Evidence grade CPractitioner method or editorial idea

Editorial contrast-and-check terminology method informed by Brunmair & Richter (2019), Similarity Matters: A Meta-Analysis of Interleaved Learning and Its Moderators, Psychological Bulletin. Read the source ↗ Benefits vary by material; most useful here for confusable categories or problem types, not random subject switching. This specific self-guided method is not established by that source.

Foundation: The load-bearing practices you return to. Build the base and keep it in play.

From the screen to the fridge

Keep your practice in sight.

Library cards are free to read and print. Choose the ones you’ll use, put them where their cues happen, and keep returning to the practice. Our boxed collections are separate printed editions.