CK-12

 

Learning(i)

Quality, well-organized math and science lessons.

What parents need to know

Positive messages

CK-12 makes STEM content accessible to kids with all learning styles and could be the key to mastery for some. 

Violence
Not applicable
Sex
Not applicable
Language
Not applicable
Consumerism
Not applicable
Drinking, drugs, & smoking
Not applicable
Privacy & safety

Kids can create an account using an email and a password. Teachers or kids can create groups that share information from within the site.

Parents Need to Know

Parents need to know that CK-12 is a website that offers a variety of free lessons in STEM subjects (Science, Technology, Engineering, and Math). The site breaks down traditional book chapters into smaller, bite-size ideas that may be easier for kids to digest. Although it's called CK-12, most of the available content is probably best suited to older kids and teens; many advanced subjects are covered. Information for younger kids also is on the site, but you may have to help them find it.

What kids can learn

Subjects

Language & Reading

  • naming
  • reading

Math

  • arithmetic
  • geometry
  • statistics

Science

  • engineering
  • chemistry
  • ecosystems
  • physics
  • plants

Social Studies

  • cultural understanding
  • events
  • history

Skills

Thinking & Reasoning

  • memorization
  • analyzing evidence
  • deduction

Creativity

  • combining knowledge

Self-Direction

  • academic development
  • identifying strengths and weaknesses
  • work to achieve goals

Engagement, Approach, Support

Engagement

Site's design includes beautiful illustrations and diagrams and a tidy interface that makes it easy to find the content you're looking for.

Learning Approach

Groups allow kids and teachers to share content with each other; there's much to explore and discover here, and kids will be engaged just browsing the topics that interest them. 

Support

The site's efforts to make its content accessible to all kids is evident; content is available in 50 languages and includes audio, video, and other multimedia. Help abounds in webinars, an FAQ list, and other guiding documents.

What kids can learn

Subjects

Language & Reading

  • naming
  • reading

Math

  • arithmetic
  • geometry
  • statistics

Science

  • engineering
  • chemistry
  • ecosystems
  • physics
  • plants

Social Studies

  • cultural understanding
  • events
  • history

Skills

Thinking & Reasoning

  • memorization
  • analyzing evidence
  • deduction

Creativity

  • combining knowledge

Self-Direction

  • academic development
  • identifying strengths and weaknesses
  • work to achieve goals

Kids can learn STEM subjects ranging from subtraction to nuclear physics, plus extras like economics and SAT prep. They'll learn study skills and can track how well they're doing by looking at their quiz results over time. Some subjects, like anatomy, require straightforward memorization, while others, like life science, will encourage kids to reflect on their world and how its pieces fit together. 

This Learning Rating review was written by Polly Conway

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What's it about?

CK-12 is divided into three sections: Mathematics, Science, and More. Mathematics includes subjects from arithmetic to trigonometry and statistics. Science covers all the bases: biology, chemistry, and physics, as well as life, earth, and physical sciences. The More section offers history, technology, and economics. Within each subject, you can click on a circle to get even more specific; each contains a number of Concepts, which are short, chapter-like lessons. For example, if you click on \"phases of matter\" within the physical science section, you will be given a list of topics that include evaporation, sublimation, and solutions. Within those, you can choose from a series of modalities: read, study aids, video, or web links.

You can bookmark material you'd like to save for later, or you can send it to a classmate by email or social media. Kids can create groups to share content with each other. If you're looking for a very specific topic, enter it into the search box to go straight there.

Is it any good?

QUALITY
 

Material on the site is well organized and very accessible. CK-12 likely will appeal most to kids who are already fairly studious; it doesn't oversimplify ideas. Although it does cover simpler subjects like arithmetic, its presentation might be too advanced for kids of the appropriate age to understand on their own. It's perfect with a parent's help, however.

CK-12 is very committed to reaching kids with all types of learning styles, and the inclusion of video, audio, quizzes, and other tools may open doors for kids who are having trouble in the classroom. The site is essentially transforming a textbook into a multimedia experience, which is very exciting. There's another major bonus: all this content is free! And it's available in nearly 50 languages. Some subjects contain more content than others, but teachers are adding lessons all the time, and the site should continue to grow.

Families can talk about...

  • You can talk with your kids about why it's important that both boys and girls learn about math and science. Explain that people haven't always believed this. 

  • Many animated movies popular with kids feature detailed ecosystems, like A Bug's Life and Ice Age. When your kids watch these movies, point out those worlds and ask them to describe them. 

Website details

Genre:Educational
Topics:Science and nature
Price:Free
Pricing structure:Free

This review of CK-12 was written by

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Quality

Our star rating assesses the media's overall quality.

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Learning ratings

  • Best: Really engaging; great learning approach.
  • Very Good: Engaging; good learning approach.
  • Good: Pretty engaging; good learning approach.
  • Fair: Somewhat engaging; OK learning approach.
  • Not for Learning: Not recommended for learning.
  • Not for Kids: Not age-appropriate for kids; not recommended for learning.

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