LYNDEBOROUGH — In September, the kindergartners will be moving in and the sixth graders moving out as a district-wide shift takes place, but teachers and administrators in Wilton and Lyndeborough are working to ensure the transition goes smoothly for all the students.

At the Lyndeborough Central School, a new addition has been completed to accommodate the school's first-ever class of kindergartners. Until recently, Lyndeborough was one of about a dozen school districts in the state that didn't offer kindergarten, but a state mandate passed by the legislature required that all districts incorporate kindergarten into their curriculum.

For several years, to meet the mandate, Lyndeborough sent its youngest students to a private kindergarten in Milford while trying repeatedly to get voter approval for an addition to the Central School to accommodate the students. Finally, last year, that approval came through and the project is now wrapping up.

Principal Susan Tussing said the new addition helps satisfy a lot of space issues at the school, from increasing the size of the library and creating a new computer room, to giving the kindergartners a bright, open classroom to experience their first year of school.

“We're in the process of finalizing the hiring of a new kindergarten teacher,” Tussing said.

Out back there's finally more parking — something that's been in very short supply at the school, she said. And last week kids in every class worked on special art projects with the help of Dover-based artist Nathan Walker.

Using ordinary objects found at home and school — everything from Legos to corks to seashells — the students from each class worked together to make relief sculptures that will hang in the new hallway of the school.

And while final preparations are being made on the kindergarten, teachers and staff are saying goodbye to the last sixth grade class the Central School will see.

Beginning in the fall, sixth-graders from Lyndeborough and Wilton's Florence Rideout Elementary School will be incorporated into the Wilton-Lyndeborough Middle School, a move that everyone has been preparing for for months, said acting Superintendent Brian Bagley, who also serves as principal of the high school.

“Putting together the schedule is the biggest challenge,” said Bagley, “and we're moving a lot of people around to make it work.”

But Bagley said everyone's pulling together from the three schools to make sure the kids feel welcome and are “going to be exposed to a lot of positives” in their new surroundings.