Points Lines AndPlanes Worksheet With Answer Key. A worksheet, in the word’s original meaning, is a sheet of paper where one performs work. It’s a printed page that a child finishes using a writing tool. No other materials are necessary. It’s”a sheet of paper on which work schedules, working time, special instructions, etc. are recorded. A bit or scrap of paper about which problems, thoughts, or the like, are put down in tentative form.” In schooling, a worksheet may have concerns for pupils and areas to document responses. In accounting, a worksheet is, or was, a sheet of paper with rows and columns on which an accountant could record information or perform calculations.