A week after the Lagunitas School District’s trustees voted to terminate the decade-old Waldorf-Inspired program, parents are investigating the feasibility of starting a homeschooling cooperative.

But plans are nascent. Parents, who went into last week’s meeting thinking just one of their program’s three teachers might be cut, are still absorbing the news. Richard Sloan, the only board member to vote to keep the program, said parents expressed shock at a meeting on Tuesday night.

“People…