
The Case of the Ridges That Never Change
Fingerprint patterns: loops, whorls and arches. Students classify prints, read a real frequency table and argue which pattern a partial print belongs to.
See what's insideEach case is a complete lesson: a real-world mystery, real data, and a self-grading Google Form that lands in your own Drive. Pick one, enter your email, and it opens right away.

Fingerprint patterns: loops, whorls and arches. Students classify prints, read a real frequency table and argue which pattern a partial print belongs to.
See what's insideThe metric system and unit conversions, told through the NASA spacecraft lost at Mars over one missed conversion. Includes a PhET simulation.
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A $5,000 balance, a $150 minimum payment and nineteen and a half years to pay it off. Students compare three payoff plans with real numbers.
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The Great Compromise and why Wyoming and California each get two senators. Students work the numbers behind Senate representation.
See what's insideYou'll get the lesson instantly, plus a monthly note with a new free resource. Unsubscribe any time. Homeschooling? Each lesson works for one student at the kitchen table just as well as a class of thirty.