When speaking on a less formal level, the why/how/what strategy is a quick and easy way to create a presentation worthy of praise. It is quite simple, as shown:
Tell your audience why this question is important without really getting into what you are actually doing.
Then, get into how you tackled this problem, using data mining, data cleaning, hypothesis testing, and so on.
Finally, tell them what your outcomes mean for the audience.
This model is borrowed from famous advertisements. The kind where they would not even tell you what the product was until 3 seconds left. They want to catch your attention and then, finally, reveal what it was that was so exciting. Consider the following example:
"Hello everyone, I am here to tell you about why we seem to have a hard time focusing on our job when the Olympics are being aired. After mining survey results and merging this data with company-standard work performance data, I was able to find a correlation between...