Dear Paul,

I'm glad you're exploring ancient Chinese scientists! Here are some tips for your oral report. First, choose a scientist like Sun Simiao or Zhang Heng, and gather detailed information about their contributions and significance. Use reliable sources such as academic journals or books. Next, outline your report with an introduction, main points, and conclusion to ensure a clear structure. Practice your presentation multiple times to gain confidence and manage your time effectively. Lastly, engage your audience by including interesting anecdotes or visuals. Good luck with your report!

Best regards, Li Ming