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CK-12 Foundation is a non-profit organization dedicated to increasing access to high quality educational materials for K-12 students all over the world. We offer free high-quality, standards-aligned, open content in the STEM subjects. By providing these free resources, CK-12 is working toward educational equity for all.
What We Provide
An integrated set of tools for learning: digital textbooks, concept-based learning, SAT prep, and interactive Algebra curriculum (with additional math and science subjects in progress). All products can be customized to match the needs of the student, educator, or school.
The FlexBook System is an online platform for assembling, authoring, and distributing interactive, multi-modal content
in the form of FlexBooks and concepts.
- FlexBooks – Our books are fully customizable and can easily be kept up-to-date. You can rearrange the chapters or even add, remove, and edit content.
- Concepts – These bite-sized lessons can be added to a FlexBook or assigned directly to students for independent learning.
- Interactive Learning Objects – Videos and multimedia simulations bring learning to life.
- Exercises – Enable students to track their progress with instant feedback.
- Teaching Materials – Get assessments, answer keys and ideas for differentiated instruction.
FlexMath is a web-based interactive Algebra I curriculum that provides daily lessons and real-time feedback to help raise student achievement.
flexmath.ck12.org
INeedAPencil provides free online SAT preparation with practice questions and an adaptive SAT score predictor.
ineedapencil.ck12.org
studyHELP is a peer-to-peer social learning (Facebook) application allowing students to ask questions whenever the need answers, form study groups, and explore a rich library of K-12 content.
apps.facebook.com/studyhelp/
Braingenie builds deep mastery and sharpens problem-solving skills through the most comprehensive K-12 math and science practice content.
braingenie.com
CK-12 Overview
Free Online Textbooks, Flashcards, Adaptive Practice, Real World Examples, Simulations
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- CK-12 Foundation (Author)
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- Homework Questions
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If you struggle with a particular concept, we'll recommend helpful resources like readings and videos. View all practice. Help. Practice Overview Practice vs. Quizzes How to Create a Quiz. More. Practice thousands of K-12 Math and Science concepts and assignments for on CK-12. Free, forever!
Practice thousands of K-12 Math and Science concepts and assignments for on CK-12. Free, forever! Adaptive Practice. Sign in. Sign Out. Cancel. Subject: Apply. GRADES 1-5. Grade 1. Grade 2. Grade 3. Grade 4. Grade 5. MATH. Arithmetic ...
Join CK12-Foundation, a free online platform that offers personalized learning resources for students in math, science, English and more.
These interactives have students "Play, Learn, Interact, and eXplore" a single concept. CK-12 has over 1,200 math and science interactive PLIX. Each PLIX offers: - a simple exploration of a single concept. - follow up questions with hints. - open discussion questions for higher-level thinking. - links to online discussions and ...
Access CK-12 anytime and on-the-go. 2008. FlexBook® Textbooks Launch. CK-12 launches fully customizable Math and Science textbooks that are free for the world to download or view online. 2007. CK-12 was born. A small, yet talented group of people vow to make receiving a great education accessible to all.
This biology text was created using CK-12 resources to be seed content for a complete Biology Class 12 course for CBSE students. The Breathing Student Edition book is one of ten volumes making up the Human Biology curriculum, an interdisciplinary and inquiry-based approach to the study of life science.
Algebra Explorations, Pre-K through Grade 7. CK-12 Algebra Explorations is a hands-on series of activities that guides students from Pre-K to Grade 7 through algebraic concepts. CK-12 Algebra I - Second Edition. CK-12's Algebra I Second Edition is a clear presentation of algebra for the high school student. CK-12 Algebra II with Trigonometry.
CK-12 Foundation Overview. The CK-12 Foundation was founded with the mission to enable everyone to learn in his or her own way. We pair high quality content with the latest technologies. We equip students, teachers, and parents with everything they need. For free.
Mission. CK-12 Foundation is a non-profit organization dedicated to increasing access to high quality educational materials for K-12 students all over the world. We offer free high-quality, standards-aligned, open content in the STEM subjects. By providing these free resources, CK-12 is working toward educational equity for all.
CK-12 for Student Self-Study. The following resources will cover how to implement CK-12 for student self-study. Start by clicking on the image below to watch the related tutorial videos.
Quizzes. Select the quiz from your library, click the drop-down arrow next to "Other Actions", then click "Download as PDF" in box that opens above.
STANDARDS. Electromagnetic Spectrum, Wavelength and Frequency Calculations, Quantization of Energy, Atomic Emission Spectra, Bohr's Atomic Model, Spectral Lines of Hydrogen. WORKSHEET. Discover a new way of learning Chemistry using Real World Simulations.
Here are some suggestions: Make sure all words are spelled correctly. Try different keywords. Try more general keywords. Practice thousands of K-12 Math and Science concepts and assignments for on CK-12. Free, forever!
CK-12 Foundation provides a library of free online textbooks, videos, exercises, flashcards, and real world applications for over 5000 concepts from arithmetic to history
Access and interact with PLIX, Simulations, and Adaptive Practice in context as you read. Simplified Interface All of CK-12's tools and resources are now unified in one toolbar.
www.ck12.org Comparing Methods for Solving Linear Systems Practice Worksheet Visit CK12.org for Free Online Practice 1.Find the solution of the system of equations using the method of your choice. State if the system is consistent, inconsistent or consistent-dependent. 4x+y=3 12x+3y=9 a. 5 4;2: System is consistent b.System is inconsistent
c k 12 .org Electromagnet Worksheet Visit CK12.org for Free Online Practice 1. A crane operater drops the cargo by turning off the electric current to the electromagnet. a. TRUE b. FALSE 2. Electromagnets can be controlled by controlling the electric current. a. TRUE b. FALSE 3. Electromagnets are very strong.
CK12-Foundation is a free online platform that offers personalized learning resources for students of different subjects and levels.
Use one of the following: Sign in with Google. Sign in with Microsoft. Sign in with Twitter. Sign in with Facebook. Or use CK-12 account: User Name or Email: Password: Forgot Password? | Create an Account.
CK12-Foundation is a free online platform that offers personalized learning resources for students and teachers.
Practice and play to learn new concepts and increase comprehension! Start Learning Interactive Content. Access and interact with PLIX, Simulations ... All of CK-12's tools and resources are now unified in one toolbar. Personalization. Let us help you figure out where to begin (Coming Soon).
c k 12 .org Solving quadratics by factoring Worksheet Visit CK12.org for Free Online Practice 1. Find two positive numbers whose difference is 4 and whose product is 357. Write your answers from least to greatest with a comma and space separating each answer. For example: 4, 9 Answer: 2. Solve the following equation. Answer: 3. George is ...
www.ck12.org Applications Using Linear Models Practice Worksheet Visit CK12.org for Free Online Practice 1.An elastic band's resistance, R (in pounds), is related to its length, L (in inches), by the formula R = 3 8 L 5. Find the inverse of this model and use the inverse to find the length at which the band provides 19 lbs of resistance ...