Free Books for iOS Arts & Humanities, Reading, Science, Social Studies

Cost: Free For all grade levels

Over 20,000 classic books, sorted by collections, genre, authors. You could find these books on other websites, but this app is very well organized. You can import you own ebooks as well.

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Free Graphing Calculator for iOS Mathematics

Cost: Free 7th Grade, 8th Grade, High School

Features include scientific calculator, graphing capabilities, unit converter, search for formulas, constants for scientific calculations, and table maker for functions.

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Genius Puzzles for iOS General, Language Arts

Cost: Free 4th Grade, 5th Grade, 6th Grade, 7th Grade, 8th Grade, High School

Train your brain! Over 30 puzzles to tickle your neurons for hours of fun.

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History:Maps of World for iOS Social Studies

Cost: Free 5th Grade, 6th Grade, 7th Grade, 8th Grade, High School

This app contains a collection of historical maps.

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HudsonAlpha iCell for iOS Science

Cost: Free 4th Grade, 5th Grade, 6th Grade, 7th Grade, 8th Grade, High School

View animal, bacteria, and plant cell. Zoom in to see a 3D view inside a cell and read information about each part. Learn about the various parts of the cell, which biologists, biochemists, and DNA researchers at the HudsonAlpha Institute study and use to advance the limits of biotechnology.

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iElements - Periodic Table of The Chemical Elements for iOS Science

Cost: Free 7th Grade, 8th Grade, High School

In this app, there is a list of elements that students can select from. Turn it to landscape and its a touchable periodic table.

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iTooch Middle School for iOS Language Arts, Mathematics

Cost: Free 6th Grade, 7th Grade, 8th Grade

With more than 10,000 exercises, iTooch Junior High School is, by far, the largest collection of educational activities based on the US National Common Core Standards on the App Store. It covers Math, Language Arts for Grades 6 to 8, and Health for Grade 6.

The application contains:

? Seven titles that can be tested for free before being purchased,
? Between 40 and 60 chapters per title with lessons, examples, and figures,
? Between 1,500 and 2,000 questions per title with clues, detailed explanations and images which make it by far the most comprehensive educative tool on the App Store for students in Grades 6 to Grade 8.

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Lab Timer for iOS General, Science

Cost: Free 6th Grade, 7th Grade, 8th Grade, High School

This app provides a way to run multiple timers at a time. Up to 16 different timers can be run simulaneously.

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Leafsnap for iOS Science

Cost: Free 4th Grade, 6th Grade, 7th Grade, 8th Grade

This free mobile app uses visual recognition software to help identify tree species from photographs of their leaves.

Leafsnap contains beautiful high-resolution images of leaves, flowers, fruit, petiole, seeds, and bark. Leafsnap currently includes the trees of the Northeast and will soon grow to include the trees of the entire continental United States.

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Math Concentration for iOS Mathematics

Cost: Free For all grade levels

NCTM app

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