What skill does main idea lock-in train?

Finding and stating the central claim of a passage without relying on the text in front of you.

Is this a game or a drill?

It is a playable round with scoring. The same skill appears in practice drills and official comprehension tests.

How long does a round take?

Usually three to five minutes, depending on passage length and difficulty.

comprehension game · 3–5 min

Main idea lock-in

Read a short passage, then lock onto the central claim with the text hidden. Builds the habit of finding the big picture before details.

Main idea lock-in

Read a short passage, then lock onto the central claim with the text hidden. Builds the habit of finding the big picture before details.

Difficulty

You’ll get a short passage and play the game in your browser — with instant feedback where the format allows.

How to play main idea lock-in

Main idea lock-in is a reading game that forces the big picture first. You read a short passage, then pick the central claim with the text hidden so you cannot hunt for a comfortable detail. Gamifying main-idea work helps when “mostly about” questions feel vague. Lock the spine of the passage, then let details hang on it — the same skill comprehension tests reward. Great for students facing main-idea questions and anyone who remembers facts but misses the thesis.

Read for the forest
Ask what the author wants you to take away. Supporting examples are not the main idea.
Lock in with the text hidden
Hiding the passage turns the choice into real retrieval, not re-scanning.
Measure transfer
After a few rounds, take the comprehension test to see whether main-idea accuracy improved.

Tips for main idea lock-in

Habits that make this game transfer to real reading and official tests.

Invent a title
If you can name the passage in a few words, you are close to the main idea.
Ignore shiny trivia
A vivid detail can distract from the claim it supports.
Pair with summaries
Paragraph summary practice makes whole-passage gist easier.