This self checking worksheet takes the student through the task of counting sig figs. A number is presented to the student. The student must choose the number of sig figs by circling the correct solution in a multiple choice type format. That solution will help solve a puzzle at the bottom of the page.
The chemistry teacher at my school used this worksheet in his chemistry class and the students loved it. "Worksheets are WAY better than book work," said one student. If a worksheet gets them to do homework, then why should teachers deny the students homework? Ha!