The Curriculum Corner

This website has Common Core checklists, lesson plans, and printable worksheets.  It covers K-6 in reading, writing, and math.  It also has lessons in science and social studies integrated with Common Core.   

ConNexus

You need an account for this one, but there are some excellent Professionally Development videos.  Hundreds to choose from.

http://my.acsi.org/

Common Sense Media

This particular page of Common Sense Media is for the Scope and Sequence for Internet Safety and Social Media awareness.  It is formatted by grades with easy to read titles and descriptions.  Thanks Craig.

Common Sense Media is dedicated to improving the lives of kids and families by providing the trustworthy information, education, and independent voice they need to thrive in a world of media and technology.

http://www.commonsensemedia.org/educators/scope-and-sequence

Study Jams

Produced by Scholastics, this site gives many definitions in science and math.  There are videos, slide shows, and step by step instructions to many terms and procedures.

http://studyjams.scholastic.com/studyjams/index.htm

WatchKnowLearn has indexed over 33,000+ educational videos, placing them into a directory of over 3,000 categories. The videos are available without any registration or fees to teachers in the classroom and to students at home 24/7. Users can dive into our innovative directory or search for videos by subject and age level. Video titles, descriptions, age level information, and ratings are all edited for usefulness.  

http://www.watchknowlearn.org/