Here are some links that could be helpful:
This is a great resource for parents, students and teachers. If you click on the subject area on the left and then 2nd grade, you will find all objectives taught throughout the year, as well as websites that will provide practice on those skills.
Wonders
Website of games for 2nd grade materials
http://www.abcya.com/second_grade_computers.htm
We the Workers
Ideas to get your kids up and moving. Let’s Move America
Kids Health-
Some practice for Math skills
Phonics Practice