Learn how to solve for density when you need to calculate the volume of a cube. [2:49]

A session of scientific notation practice problems in action. [13:31]

Learn how to convert units using conversion factors and canceling units in dimensional analysis. [12:46]

Learn how to use the density number like a conversion factor, to solve for mass or volume. Watch this video after the density introduction or before the more complicated video on density exercises that has unit conversion. [8:55]

In this tutorial, find out how to do conversion with numbers that are fractions. [12:30]

Learn how to multiply and divide numbers that are written in scientific notation. [5:30]

Scientific notation is a way to express very large and small numbers with exponents as a power of ten. In this tutorial, learn to convert numbers into and out of scientific notation. [13:56]

Take a look at how conversion factors work and what the math means. Understand the unit conversions in a problem to make judgements about the results. [10:14]

Learn how to combine multiple conversion factors into a row so that you can convert units in more than one step using the factor label method or dimensional analysis. [10:04]