Research can be daunting. Sometimes people get frustrated or overwhelmed. A guiding question really helps because it focuses the research. That is, you look for the answer to your question. It also helps judge the usefulness of sources. If the source answers a part of the guiding question, it’s useful, so study it. If the source does not answer part of the question, skip it.
I’ve been playing with Jing screen capture and voice over software lately, so here’s a short video explaining more.