Graphing
Learning to communicate scientific results in graphical form is one of the major desired learning outcomes of this course.
Use lined graph paper to make your graphs. (You won't need a whole pack of graph paper yourself for this class, so share a pack with a bunch of your classmates and share the cost too.) Make your graphs large so they will be easy to read.
In physics we always say "vertical axis" vs. "horizontal axis"; so if you are instructed to make a graph of velocity vs. time then velocity goes on the vertical axis and time on the horizontal.
Always put the units in parentheses on each axis.
The slope of straight-line graphs is often physically significant. For example, the circle constant τ is the slope of a graph of circumference vs. radius for circles. You should show the calculation of the slope of the line; show which two points you picked to determine the rise and the run (pick two points on the line, not data points).