Lambda Chi Alpha, Alpha Sigma Alpha, and Gamma Phi Beta will raise money for the Vanderburgh County Special Olympics at the annual Teeter Totter-A-Thon.

The event starts at 4 p.m. each day April 15-17 at the Family Christian Bookstore on Green River Road. Participants will ride the 30-ft teeter totter for 48 hours to raise funds for the Special Olympics.