FlexLets™:
The Essentials

Want to ensure you understand the most crucial parts of your class? Catch up on math and science classes with CK-12's FlexLets™, designed to make sure that you know the essentials.

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FlexLets™

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MATH

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6th Grade Math Essentials

7th Grade Math Essentials

8th Grade Math Essentials

Algebra I Essentials

Geometry Essentials

Algebra II Essentials

Precalc Prep

SCIENCE

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Earth Science Essentials

Life Science Essentials

Physical Science Essentials

Biology Essentials

Chemistry Essentials

Physics Essentials

Elementary

Grade 1 Math

Precalc Prep

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