Case 13: Teaching Materials to Narrated Video

Scenario

Marcus teaches at a professional certification prep center. He has a structured question bank in JSON with questions, answers, and explanations. Turning that into video courseware used to mean: manually building PPT, then recording slide-by-slide. A 30-question set took at least two days.

He wanted to see if QoderWork could automate the whole pipeline.

File Prep

Desktop/Course-Production/
├── Structured-Question-Bank-Vol1.json
├── Answer-Framework-Template.pptx (optional, for PPT style)
└── Intro-Outro-Assets/ (optional)

1. Select your folder

   Select the Course-Production folder.

2. Generate PPT

   Read "Structured-Question-Bank-Vol1.json" and create one PPT slide per question:
   - Top half: question text
   - Bottom half: key answer points (bulleted)
   - Last slide: answer framework summary
   Match the style of "Answer-Framework-Template.pptx"
   
3. Generate narrated video

   Turn the PPT into a video:
   - Add voiceover per slide (based on answers, conversational tone)
   - Adjust slide duration by content length
   - Output as MP4
   

What QoderWork Did

QoderWork read the JSON, generated a 30-slide PPT, turned each slide into spoken narration, and produced a narrated video. What used to take two days was done in one morning.

Ongoing Use

Marcus adds new question sets weekly: drop a new JSON file in the folder and say “New Vol 2 questions added. Generate PPT and video in the same format.” He also packaged the flow as a Skill so teaching assistants can run it.

Key Metrics

Metric	Result
End-to-end	Materials → PPT → video in one flow
Scope	Training, teaching, knowledge sharing

Pro Tips

Use stepwise prompts + Skill packaging for long, multi-step tasks.

Marcus split the work: first PPT (data + template style), then video (narration + timing). Each step has clear inputs and outputs. If something’s off, you fix one step instead of redoing everything.

He then used create-skill to turn the flow into a Skill for the team. Break complex tasks into steps, then package as a Skill for reuse.