Helman uses the EngageNY math curriculum for our math instruction K-5. This program was written to the new Common Core Standards that Oregon and most other states adopted at the end of the 2011-12 school year.
Oakdale Joint Unified School District has put together excellent math resources including homework resources. http://www.oakdale.k12.ca.us/cms/page_view?d=x&piid=&vpid=1391596408603
Math Fact Online Games: