CK-12 launches fully customizable Math and Science textbooks that are free for the world to download or view online.

A ground-breaking cross-curricular resource designed to simultaneously engage students and provide educators with instructional support to implement the Common Core State Standards. Thousands of learning objects, tools, and assessment activities encourage student content creation, critical thinking, and collaboration.

TeenTribune, TweenTribune, TTEspañol and TTJunior (hereinafter collectively referred to as "TTribune") is a free online educational service offered by the Smithsonian for use by K-12 grade Teachers and students. TTribune consists of daily news sites for kids, tweens, and teens, and includes text, photos, graphics, and audio and/or video materials prepared by the Smithsonian and others about current events, history, art, culture and science.

Practice Math & English And Have Fun Doing It. Win Awards And More!
Immediate Feedback · K-12 Math & English · Adaptive & Individualized
Courses: Math, English, Science, Social Studies

Brought to you by USA.gov, Kids.gov is the official kids' portal for the U.S. government. We link kids, parents and teachers to information and services on the web from government agencies, schools, and educational organizations, all geared to the learning level and interest of kids.

Common Lit is an amazing resource. Common Lit provides free texts and discussion questions. These texts can be downloaded for free.

Students can take formative or summative quizzes based on BrainPOP videos

SAS Curriculum Pathways provides interactive, standards-based resources in English language arts, math, science, social studies, and Spanish (grades K-12). This writing editor can be used to help students edit their writing.