STEM is a huge buzzword in the world of education these days. STEM stands for science, technology, engineering and math and is a heavy focus as schools work to prepare our kids for the jobs of tomorrow.

Just one day of volunteering can make a difference in how local students learn these important STEM skills, which makes ASSET's "Materials Support Center" today's choice for our ongoing "25 Days of Volunteering" list.

ASSET (since we're going with acronyms here) stands for Achieving Student Success through Excellence in Teaching. The organization trains teachers to teach STEM skills more effectively.

They also provide hands-on science exploration materials to classrooms and educational programs. Volunteers help keep these learning materials affordable by refurbishing them for future use, by cleaning, sorting, counting and packing these materials at their warehouse on Pittsburgh's South Side.

Each year, volunteers spend nearly 6,000 hours doing this work. Do the math (that's a little joke) and you'll see that ASSET's volunteers really make a difference. If you'd like to be one of them, click here to find out more.