FARMINGTON — A fifth-grader at Cascade Brook School won $100 Tuesday for his winning design to commemorate the end of the 80-year-old W.G. Mallett School and the opening of the new one.

Nine-year-old Zach Gunther’s intricate drawing shows tiny construction workers building the letters in the word “Mallett.” They are operating cranes, climbing ladders, working on scaffolding and doing other hard-hat jobs like the real workers at the new school going up in the old school’s backyard.

Below the letters are the words, “Building a Better Community Together,” with the dates of the school, 1931 to 2011.

The new W.G. Mallett School opens in September and will house about 300 children from preschool to grade three.

Principal Tracy Williams presented the check to Zack on Tuesday. He is the son of Eric Gunther and his wife, Jody.

Dozens of entries were submitted from students at Mallett School and Cascade Brook School, which houses students in grades four to six. Gunther’s design will be used on T-shirts that will be silk-screened at Black Bear graphics and will be available for sale in advance of the Mallett celebration from 10 a.m. to 3 p.m. Saturday, June 4.

Gunther said he came up with the idea to incorporate building letters during a brainstorming session with his father. Once he settled on the design, he said it took him only two drafts to come up with one that pleased him.

“I love drawing,” he said.

“How will you feel when you walk around with the T-shirt on?” Williams asked him.

“It will be fun,” he said.

T-shirts are one of many projects the Mallett Celebration Committee is working on to give the old school a send-off before it is razed this summer to make way for the new school playground.

At a planning meeting Tuesday, a group of teachers and volunteers met with Williams to go over the myriad tasks that still need to be done. The big event will include music, games, food, a street dance, buttons, posters, tours of the old school and a display of memorabilia, much of it donated by alumni.

Commemorative mugs with an old photo of Mallett have also been made and are for sale.

Williams said fundraising is going to help pay for extra landscaping and other needs at the new school that were not included in the Maine Department of Education’s construction budget.

There is also a W.G. Mallett School Celebration Site on Facebook where people are asked to share memories, photos and keep up with the latest news.