3M on Friday surprised scores of St. Paul Public Schools teachers by paying for every outstanding classroom project in the school district on the crowdfunding site DonorsChoose.org.

Teachers and students at Frost Lake Elementary applauded when a curtain was pulled back on boxes of classroom supplies, from animal storybooks to coding tools for their school-issued iPads.

Principal Stacey Kadrmas said that when students get some say in their classroom materials, “school is more fun and you learn more.”

The 160 projects, which needed about $75,000 for full funding, brings 3M’s total giving to U.S. classrooms through DonorsChoose.org to around $1.2 million, the company said.

Jacqueline Berry, manager of education initiatives for 3Mgives, told students at Frost Lake Elementary her team was amazed at the classroom projects on the site.

“We couldn’t figure out which one to choose,” she said, so they decided to flash-fund each one.

Other funded projects at Frost Lake include tools for learning engineering, and cash to take black students on college tours.

Fifth-grade special-education teacher Martin Odima Jr. was awarded $2,000 for bean bag chairs and other furniture so his students can sit comfortably. They’ll take the place of decades-old chairs and tables.

“There’s nothing in the (school) budget for that,” he said.

The school district encourages its teachers to use DonorsChoose.org because it’s easy and reaches donors from all over. A Central High School physical education and health teacher has had 33 projects worth over $15,000 funded since August 2016.

DonorsChoose.org often features donor matching by corporations or nonprofits and encourages flash-funding. In 2015, TV host Stephen Colbert gave $800,000 to fund every project in South Carolina.