Pick one prompt. You are the guide, so pick a trip you can actually lead.
Step 2 · Plan it
Plan first. Fill in the four parts of the Tour in short notes. A good route on paper is a trip the reader can take.
Step 3 · Pick one goal
One goal, chosen before you write, beats ten wishes after. Pick exactly one.
After you write, look for the proof in your own sentences.
Step 4 · Write your explanation
Keep your stops in an order that builds understanding, and pour it on where the reader needs the why. A good guide never skips a stop, never doubles back, and always explains the reasons.
Linking words you can borrow:becausethereforeas a resultin contrastwhich meansso that
Step 5 · Sum it up
One more thing, once you have written. One sentence: what will your reader be able to understand now that they could not before? If your explanation and your sentence disagree, believe the sentence.
Step 6 · Before you turn it in
Read your explanation once, out loud if you can. Then check.
Filed, and a route a reader could follow all the way to understanding. You named where you were going, you kept your stops in order, and you explained the why at every one. That is an explanation.