Our textbook discusses the importance of better understanding slang and jargon, especially when it comes to our use of verbal language. For this, I might recommend that you watch these two videos separately, then review the concepts outlined by your textbook regarding each component.
Remember that there are similarities in these two uses of language. The most important commonality is that they are derived from sub-groups within the larger culture. Although these may be confusing, you can easily distinguish between them.
Slang is focused on the use of language in a geographic region (where you live) or generational groups (age gaps). This video helps explain it better.
Jargon is primarily focused on the language used within a particular vocation (career field) or a technical area. This video is a helpful, brief explanation of how jargon can be used ineffectively.