You can subtract tuition and mandatory fees paid to a qualified institution regardless of the type of course taken. For example, tuition you paid for craft or recreational courses at a technical college qualifies for the subtraction. However, you can't claim fees paid to other establishments. For example, fees paid to a retail craft store to attend a session on flower arranging don't qualify for the subtraction.
You can also subtract tuition and fees paid for correspondence courses or online courses, as long as the courses are taken in Wisconsin and are presented by a school (located inside or outside Wisconsin) that qualifies as a university, college, or technical college, or a school approved through the Educational Approval Program.