Sophia is an online community that offers free crowd-sources lessons from Middle School through College. What does that mean? It means that teachers can go on and add their own lesson plans, videos, slide shows, podcasts and documents. You can search by grade and subject and find just what you are looking for. Their are also Pathways, which are groups of lessons on a topic, like Fractions for example, that your child can work through at their own pace. Bill Nye has 40 tutorials on Sophia! They also have test prep for high school students and they offer some college courses. Sophia covers all subjects, Middle School through adult learners and it’s FREE!