This one-page discovery activity requires students to measure 5 objects, to the nearest inch, 1/2-inch, 1/4-inch, and 1/8 inch. They make an estimation before measuring. The five objects are a paperclip, a pencil, a sheet of loose leaf, a desk top, and a textbook.
After measuring and recording data in a table, students answer 4 thinking questions, designed to have students intuitively discover the meaning and importance of precision. One of the thinking questions asks students to re-measure