# Course Lecture

Use for tutorials, lectures, workshops, and teaching decks.

## Slide Shapes

- Objective: what learners can do after this section.
- Concept: definition plus one diagram or example.
- Worked example: input, transformation, output.
- Contrast: similar concepts side by side.
- Step-by-step: numbered process with one action per step.
- Exercise: task, constraints, expected outcome.
- Recap: key takeaways and next concept.

## pptz Patterns

- Use rich text bullets for teaching sequences; do not encode bullets inside a
  multiline plain `text` string.
- Use tables for syntax or concept comparisons.
- Use connectors for data flow or evaluation flow.
- Use components for repeated labeled chips/cards. Put each node's background
  shape and label in the same component or in matching bounds.
- Use images only when they clarify the concept being taught.

### Safe Diagram Nodes

For learning maps, pipelines, and contrast diagrams, avoid a row of empty shapes
plus one shared text box. Make each node independently labeled:

```toml
[components.lesson_chip]
bounds = [0, 0, 210, 78]

[[components.lesson_chip.elements]]
id = "bg"
type = "shape"
bounds = [0, 0, 210, 78]

[components.lesson_chip.elements.content]
shape = "round_rect"

[[components.lesson_chip.elements]]
id = "label"
type = "text"
bounds = [12, 16, 186, 42]

[components.lesson_chip.elements.content]
style = "$body"
align = ["center", "center"]
text = "$label"

[[components]]
id = "syntax_chip"
use = "$lesson_chip"
bounds = [115, 170, 210, 78]

[components.props]
label = "语言核心"
```

## Avoid

- Dense paragraphs that should be speaker notes or handout text.
- Too many new terms on one slide.
- Exercises without an explicit expected outcome.
- Text that uses repeated spaces to line up labels over cards or columns.
- Empty colored shapes that are meant to represent concepts, steps, or states.