The first day of classes for Seattle Public Schools is still weeks away, but hundreds of students are on site this week at many schools in West Seattle, for Kindergarten Jump Start. It’s a voluntary “weeklong experience for new kindergarteners and their families to learn about their new school.” Most participating schools will have half-day sessions all week, 9 am-noon. According to the district flyer, schools participating in our area are Alki, Arbor Heights (at Boren), Concord, Fairmount Park, Gatewood, Highland Park, Lafayette, Pathfinder, Roxhill, and Sanislo.