Proper scientific measurement is essential in both science and mathematics. This Tutor will guide you through all facets of recording, interpreting and estimating measurements using the metric system. You select your measuring device from a list of instruments commonly found in school laboratories, measure any object you wish and enter your measurement into the Tutor exactly as you would write it on paper. The Tutor will assess your measurement for scientific validity, answer questions for you or supply information so you can assess for accuracy. At every step, the Tutor explains how the measurement could be improved or confirms that you have recorded it correctly. Regardless of which measuring instrument you use, you will come away with a clear understanding of precision and how it is determined.