This website is a great resource for anything Kid's Sabbath School. It not only has the student and teacher's lessons, but a video especially designed for each week.
This is an incredible website packed full of resources and idea for running your children's ministries from home. You'll find everything from craft ideas, to VBS, to Sabbath School resources, to fun activity pages. This page is highly recommended for all parents who need to "homeschool" Sabbath School over these next several weeks!
Although not an SDA website, this is another great resource for parents who are providing Sabbath School at home during this crisis. It has crafts, games, lesson and outreach ideas, as well as teaching tips.
Some super fun online Bible puzzles. Give them a try!