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Curriculum Associates Releases Door 24 — New iPad App

Posted Jan 2, 2014
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Curriculum Associates has announced another addition to the i-Ready Diagnostic & Instruction product line, winner of the 2013 CODiE Award for Best Student Assessment Solution, with the release of Door 24, the second in a new series of educational games for the iPad. These apps target the skills that are most essential for achievement in reading and mathematics and motivate students to develop these skills through the power of game design.

The release of Door 24 follows the successful launch of its companion app, World’s Worst Pet, which has been ranked as a Top 25 Education App on the App Store, featured as iTunes Best New Education App, and named “App of the Week” by eSchool News.

Designed for grades 4–8, Door 24 helps students build their computational fluency and develop their ability to think quantitatively and strategically. Complementing i-Ready’s online adaptive diagnostic and instruction program, Door 24 goes beyond just having students memorize facts and procedures. The app’s focus on computational fluency supports problem solving and higher-order thinking and builds the mathematical processes and proficiencies that the Common Core State Standards (CCSS) identify in the Standards of Mathematical Practice (SMP).

Available for free through the App Store, Door 24 requires students to use their skills to help Bella and Beau—the onscreen characters from i-Ready’s online lessons—fix Victor the robot’s fried circuits and solve the secret of “Door 24.”

During the game, students use number facts, order of operation, and number relationships to create expressions equivalent to 24. Students additionally learn strategies such as making tens, recognizing factors of 24, understanding relationships between operations, and more. At the end of every level, students are also presented with a challenge set that requires them to find as many expressions as possible that are equivalent to 24, given a particular number set.

The app can be downloaded at or by searching for “Door 24” in the App Store.

Built for the Common Core, i-Ready Diagnostic & Instruction is designed to help students make real gains. It combines a valid and reliable measure and personalized instruction into a single online product that saves teachers time at a fraction of the cost of similar products.

The adaptive Diagnostic pinpoints student needs down to the sub-skill level and generates a combination of online instruction and downloadable teacher-led lessons that are unique to each student’s diagnostic result. These individualized learning plans are easy to understand and implement.

For more information, please visit

Source: Curriculum Associates,

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