Seesaw a "teeter-totter". According to linguist Peter Trudgill, the term originates from the Nordic language word "tittermatorter". A "teeter-totter" may also refer to a two-person swing on a swing seat, on which two children sit facing each other and the teeter-totter swings back and forth in a pendulum motion. Both "teeter-totter" (from "teeter", as in "to teeter on the edge") and "seesaw" (from the verb "saw") demonstrate the linguistic process called reduplication, where a word or syllable is doubled, often with a different vowel. Reduplication is typical of words that indicate repeated activity, such as riding up and down on a
Possibility Playground volunteers began constructing the playground. Volunteers worked for four-hour shifts. The workers consisted of 30 members of the United States Navy from Milwaukee, children from Mukwonago and college students from the Milwaukee School of Engineering, as well as church groups. Save for three "build captains" from Leathers & Associates, the design firm, none of the workers were paid. The playground was completed on September 21, 2008, after six days of volunteer work by thousands of local citizens. Possibility Playground was officially opened on October 11, 2008. Possibility Playground has a "poured-rubber surface", while the equipment is formed from structural plastic.