Below you will find some websites to help your child reinforce the skills being taught at school.
This website offers a variety of math games. Some of the games focus more on end of Kindergarten skills but there are some counting games which may be beneficial.
This website focuses on ELA skills. Your child can play phonics related games on this page. The website also offers worksheets that you can download to practice phonics skills at home.
This is a fantastic Common Core Aligned website that offers your child customizable features to practice their ELA and math skills for free. More advanced versions are available for purchase.
This is a website that has games and resources for your child. There are more math games than reading games on this site.
Funbrain has a collection of games for your child to explore. They cover both reading and math games.