Otis the otter beside a full ten frame and three more dots, with the number 13

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Otis Keeps Track: Counting Mats and Ten Frames

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Quick facts

CountingCardinalityAddition & SubtractionKindergarten2 preview imagesAdded Oct 2026

About

Otis the otter shows kindergartners how to keep track when a count gets big. Children add or take away 0 and 1 in quick number talks, count collections of 11 to 20 with a counting mat and a ten frame, and judge whether Otis counted right, spotting the button he skipped or counted twice. Fully narrated, with a spoken hint after every wrong answer.

What's included

  • 12 narrated activities: four number talks, a counting collection, a counting mat, ten frames and four did-Otis-count-right questions
  • Counts where Otis makes a mistake and the child finds it
  • A counting mat and ten frames for keeping track
  • Spoken hints after every wrong answer

Learning objectives

  • Add or take away 0 or 1 from a small number.
  • Count a collection of 11 to 20 objects, keeping track so each is counted once.
  • Use a counting mat or a ten frame to keep track while counting.
  • Spot a count that skipped an object or counted one twice.

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