On the hunt for free websites you can use in your elementary classroom? There's a ton out there, especially for helping kids learn and practice literacy and math skills. Out of the hundreds of K-5 websites we've rated, these are some of our favorites. We've selected these websites for their ability to engage students and their pedagogical value as well as their utility in the classroom. Our hope is that these content-rich sites can be reliable go-to destinations for your kids all year long. Use them with students from pre-kindergarten through the fifth grade to help them pick up new skills and build solid foundations in math, science, and reading.