K-5 Math Teaching Resourceshttp://www.k-5mathteachingresources.com/    This particular site provides an extensive collection of free resources, math games, and hands-on math activities aligned with the Common Core State Standards for Mathematics. They have math printables that are suitable for use in math centers, small group or whole class settings. Instructions for each activity are presented in large print on a task card to enable students to work on tasks independently after a brief introduction to the task. All files are in PDF format and can be accessed using Adobe Reader.
    Math Recovery Resourceshttp://www.solonschools.org/SolonNet/FIS/Links.aspx?ID=1176  Tina Silvestri has done a ton of work sharing math recovery activities, links to math websites and more. It is very worth checking out this link. Enjoy.
    Flip Flop Mathhttp://www.flipflopmath.com/resources.html Cindy Prey's Flip Flop Math site has great ideas and materials to teach the K-3 Common Core Math Standards to increase student numeracy knowledge. 

    Sarah Anderson's website links to on-line games https://www.ahschools.us/education/staff/staff.php?sectiondetailid=266756& On this site there are some online games for students to practice math skills learned in the classroom, Math Recovery, or Math Intervention groups. Sarah is a kindergarten teacher with Math Recovery/Add+Vantage training at Dayton Elementary.
    Math Gameshttp://www.boxcarsandoneeyedjacks.com/ Box Cars and One-Eyed Jacks is a leading Pre-Kindergarten to Grade 10 consulting and publishing company specializing in games and teaching strategies for classrooms across North America. Whether you're looking for professional development or resources, Box Cars and One-Eyed Jacks will help you. They publish a wide variety of math and literacy game books appropriate for primary pre-K to 3, upper elementary and middle year students. They are correlated to Common Core standards and align with curriculum across North America. Box Cars provides excellent professional development workshops. Their books and manipulatives motivate all types of learners in the engaging context of multi-sensory, hands-on activities. Suzanne Weider has links to this page, which include instruction videos of how to play some wonderful math games K-2. Based on the site she teaches 1st Grade at Seth Paine Elementary in Lake Zurich, Illinois.

    Greg Tang FREE website:  http://gregtangmath.com/games.php  This is a wonderful site for providing math fluency practice. This is a must see. Games and activities are engaging to keep bringing you back to meet the challenges.