To determine the correct number of significant figures in a measured number, and to express the correct number of significant figures when performing arithmetic operations.
The screencast, along with the attached practice and assignment worksheets, should provide the student with a solid understanding of determining the number of significant figures in measured values, as well as calculated values.
This pdf document is comprised of the same examples seen within the screencast. Students can record the answers from the screencast, or work ahead. Either way, they will then possess a sheet of worked examples which can be referred to if necessary.
This pdf document has exercises which could be used to assess the student's comprehension of determining the number of significant figures in a measured value, as well as those in a calculated value.