the science, as games

Your brain is great at words. Word lists are the problem.

rootscroll runs on three tricks memory researchers have tested for decades. Try two of them on your own brain, and watch the third play out.

Parent? Here's the research in plain terms.

Trick 1 of 3

You already know half of these words.

Tap the bold pieces, then guess what the word means.

Why this works

Learning one root makes every word in its family easier. Studies of root teaching find steady gains in vocabulary.

Goodwin & Ahn, 2013

The honest fine print

Roots work best inside a family. Some words hide their roots, so rootscroll always shows the real definition too. The definitions in this game are the ones the app shows.

Trick 2 of 3

Same four reviews. Only the timing changes.

Memory starts fading the moment you learn something. Review while it's still fresh and you barely strengthen it. Wait until it's starting to slip, and each review buys a longer gap.

A simplified model of the forgetting curve, built to show the pattern. It isn't a prediction for your brain.

Why this works

Reviewing right as a word starts to slip gives the biggest boost, and each review buys a longer gap. Spacing beat cramming for 90% of students in a flashcard study.

Kornell, 2009

The weird part

Most of those students thought cramming worked better. It feels productive because the word is fresh. It fades just as fast. rootscroll does the spacing for you.

Trick 3 of 3

The harder way is the one that sticks.

Study one word each way. Notice which one feels easier.

Way 1: reread it
candid
honest and direct, even when it's awkward
Way 2: pull it from memory
Which word means “holding on firmly and refusing to give up”?
Hint: ten = hold, like contain and retain.

Why this works

Pulling a word out of memory strengthens it. Rereading feels smooth, and that smoothness tricks you into thinking you know it.

Roediger & Karpicke, 2006

How rootscroll uses it

Every review asks for the meaning first and shows the answer second. The small struggle is the whole point.

Three study moves that actually work.

Use them on anything, with or without us. rootscroll does all three for you while you read.

Spread it out.

Ten minutes on four different days beats forty minutes the night before.

rootscroll brings each word back on time.

Quiz yourself.

Cover the answer and try to remember it first. If it feels hard, it's working.

Every review asks first.

Learn the root.

One root unlocks a family. Spect alone gets you inspect, respect, and circumspect.

rootscroll shows the root in every word.