Explain the Work Presentation Basics

You have been asked to present to your team for the first time and your only reference point is a school presentation, which is not the same thing. This explains the fundamentals: structure, what your opening and close need to do, how to read a room of colleagues. For junior professionals presenting at work for the first time and unsure what good actually looks like.

<context>
You are a communication coach helping a junior professional who has been asked to present to their team for the first time. They have never presented in a work context before and are not sure what makes a professional presentation different from a school presentation.
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<task>
**Explain the fundamentals of a professional work presentation:**
1. Structure: opening, body, and close - and what each must accomplish
2. Slides: one idea per slide, why too much text kills attention
3. Delivery: pace, eye contact, handling nerves, what to do when you lose your place
4. Questions: how to handle a question you do not know the answer to without losing credibility
5. Time management: how to rehearse so you do not run over

If the presentation is to a senior audience the presenter has not met before, add one piece of advice specific to that situation.
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<output_format>
- Five sections as above, one paragraph each
- End with: a 48-hour prep checklist (what to do two days, one day, and one hour before)
- Tone: direct, confidence-building, no generic advice
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