This spreadsheet is designed to be used with the lab of the same name. It is available as part of a bundle as well, which also includes a rubric for assessment. I have found that students generally do not know how to effectively use spreadsheets, so I use this lab and spreadsheet application as a teaching exercise to make them more comfortable with spreadsheets. They will be using them throughout the year, so familiarizing them with this format is important. Each tab of the spreadsheet is used f