Here are a couple of videos on plotting latitude / longitude coordinates. We will talk about lat/lon in class. But we will probably not get into plotting it on a map. These videos will walk you through the process.
I'll give you a ruler to use with 1:24,000 scale maps.
Here is a link to the practice map for this: LLPracticeMap.pdf
And here is a different approach, using ratios measured in millimeters, rather than a specialized ruler: LLbyRatio.pdf