This website contains all the information that is provided for a no-cost public school funded system where families can have curriculum appropriate materials ("even bags of rocks and dirt") delivered to their front door and complete graded Kindergarten through the 12th grade virtually from home. They claim these virtual students will spend about 20-25% of their time working on the computer, while high school students in this program can plan to spend about three hours each day on the computer. This site offers free examples of lesson plans, and lots of information on how this system works.

Search Criteria: Google: virtual school Washington state (I started with virtual school and Google provided me the rest)