Extensive list and infographics on choosing the right tool.

Standards for each grade in math. Nice graphic

Great resource for non-fiction.  Reviews are very thorough, and include related books and ideas.

Science videos about the body, medicine, energy, earth, teeth, micro-organisms, the brain, senses, and exercise

Free photos with goal quotes.  Laura Candler's materials are great, and many of them are free.

Huge repository of videos and ideas for use in primary classrooms.  From the UK.  Here's the description: "The Literacy Shed is home to a wealth of visual resources that I have collected over my 10 year career as a primary school teacher.   I trawl youtube, vimeo and other sites looking for suitable resources to use in the sheds. The sheds are broadly thematic but sometimes a resource could go in 2 or more sheds, I slot it in where I think it works best. Most of the resources can be used in KS1 and KS2 but some do lend themselves to the upper age group and above. The aim is to provide high quality resources that can be used in stand alone literacy lessons, can form the basis for a whole literacy unit or can support literacy units that you already have in place.   With the many book based activities I would advocate using the book alongside the digital resource.  "

"How about a Pinterest board of all my best teaching resources? These are my top pins, most-visited web pages, and blog posts with the most visits - all in once place!"  Laura Candler already had many great resources posted on the web; now she's adding them to pinterest.

2000 CCSS lessons for Grades 3-9

Rec. from Richard Byrne for a Digital Literacy curriculum from Common Sense Media

A third grade pinterest board with over 25,000 followers!

Best article I've seen explaining what the CCSS assessments might be like

Hundreds of techniques and strategies for classroom use.