Getting Smart has found more than a dozen excellent open educational resources for secondary schools and presents them in the following organized grouping with quick-reference summaries:
- Science and Math — includes CK12.org and Educurious
- Comprehensive Modular Resources — includes Curriki and and OERCommons.org
- Grade-Level Collections — includes Gooru Learning and Power My Learning
- History — includes Big History Project and Muzzylane
- Mostly Higher Ed — includes Connexions and the Open Software Consortium
- Addition Free Resources — includes PBS LearningMedia and National Geographic
