The following are some online resources available for you and your child: 
These bilingual parent resources offer tips on helping your child learn to read, succeed in school, and learn a new language. They also provide information about the U.S. school system and share ideas on how to build a relationship with your child’s teacher and school. 
Free English lessons in 7 levels. 
Great for students with limited amounts of time to study, these short audio lessons are broken down by specific categories.
Provided by Houghton Mifflin, this interactive site for kids is divided by Grades K-5 and Grades 6-8.
Hello World has more than 800 games and activities in English, all of which are completely free.