Classroom Tools

Multi-Discipline
Building Community
Engagement
Creativity
Science
Arts
Reading
Technology

Multi-Discipline

KHAN ACADEMY
The Khan Academy offers a huge selection of learning content, either for individuals to pursue on their own, or in a format for teachers to create virtual classrooms to monitor their students' progress.
LESSON PLANET CALENDAR
Interactive calendar of historical and cultural events, each of which links to further resources and materials!
BOSTON PUBLIC LIBRARY - GALE ONLINE COURSES
With a BPL eCard (available to anyone 13 or older living or working in MA), the Boston Public Library offers a good selection of FREE online courses, including a whole category on "Teaching and Education."

Building Community

Picture
Teamwork!
PBIS
Positive behavior intervention and support for schools and classrooms
Teaching Tolerance
Support for those who care about diversity, equal opportunity and respect for differences in schools
TRIBES
Building a caring community that calls out the whole child

Engagement

KAGAN
Excellent cooperative learning structures and more

Creativity

HUD Virtual Field Trips
Explore your community without leaving your seat
Virtual Field Trips
Advice on using videos in the classroom to create a field trip experience

Science

FOSS
Hands–on science program out of Lawrence Hall of Science
Leafsnap
iPhone and iPad app created by researchers from the Smithsonian, Columbia University, and the University of Maryland. Immediate identification of tree species from photos of their leaves, or simply placing the leaf on an iPad.
Mobile apps by the Smithsonian

Arts
National Gallery of Art
Kids activities and projects, including interactive online projects
Google Cultural Institute
Basically an online museum in partnership with museums around the world
Picture
Check it out!
The Artist's Toolkit
Visual elements and principles to learn about, identify in artworks, then use to create online works

Reading
Aunt Lee's Library Search /
Middle and High School Book Lists
Great search engine and book lists to find ebooks or pdfs available free in the public domain - download legally! 
Young Adults Library Services Association - Book Lists
A division of the American Library Association, YALSA provides many different book lists and recommendations for teens and young adults.
Read.gov
Reading suggestions tied to American historical figures and events.

Technology

Common Sense Media: Media and Technology Resources for Educators
"FREE Digital Literacy and Citizenship Curriculum and Parent Media Education Program. The relevant, ready-to-use instruction helps you guide students to make safe, smart, and ethical decisions in the digital world where they live, study and play."