Lex Editor Guide
The teacher-facing route into the canonical Lex Editor documentation.
Who this is for
Teachers who need to build or edit lesson content, but do not want to browse the full editor reference first.
What this page answers
- What is the shortest teacher workflow in the editor?
- Which editor pages should I read first?
- Where does detailed editor behavior live?
Prerequisites
- a course lesson you can open in edit mode
The shortest teacher workflow
When you open a lesson in the Lex Editor, most teachers only need to do four things:
- create the lesson structure with headings and sections
- add practice with inline answers or widgets
- add media or AI-generated content where needed
- save, review, and publish the lesson
Review widgets before publishing
AI-generated and hand-built widgets should be checked before a lesson is assigned.
Use Enter widget edit mode in the toolbar to switch all widgets in the lesson into edit mode. Review the answers, options, instructions, and generated content. Click the same button again when you are finished so the lesson returns to normal mode.
Some widgets appear in edit mode immediately after AI generation, especially images and audio dialogue widgets. Review their prompt or script, then click Generate inside the widget to create the final asset. If you do not generate it, the widget remains an editable placeholder.
For pronunciation and other AI-audio activities, open the activity and generate or cache the required audio before assignment when the student should receive ready content.
Clear answers during review
Use Clear answers when you need to reset exercise state before publishing, testing, recording a demo, or assigning a lesson.
- With no selection, the toolbar action clears answers and activity state across the document after confirmation.
- With selected content, the floating toolbar Clear answers action clears only the selected widgets or answer fields.
This is different from editing the correct answer. Clear answers removes submitted/test responses so the lesson can be checked or shown from a clean state.
Always clear teacher test answers before assigning a material to students. If the lesson document still contains teacher-entered answers, students can see those answers in their assigned copy.
Image tools during lessons
Image blocks are not only static illustrations. In the editor and live lesson context, image hover tools can support explanation and feedback:
- Draw to mark directly on the image
- Laser pointer to point temporarily without saving a mark
- Comment pin to attach a note to a specific spot
- Undo and Clear to manage saved drawing strokes
Use these tools for picture descriptions, map tasks, visual grammar prompts, handwriting-style correction, and live explanations where students need to focus on one part of an image. See Media: Drawing on an Image for the full reference.
Use the editor docs by task
Start Here
Interface basics, slash commands, saving, and your first lesson.
Interactive Widgets
Overview of exercise widgets, game widgets, and brain breaks.
Media
Images, audio, video, and embeds.
AI Features
Lesson Builder, Ask AI, and related assistant tools.
What stays in the School Guide
The School Guide owns the teaching workflow around the editor:
- how lessons fit into courses
- how lesson content gets assigned
- how teachers use lessons in live sessions
- how lesson restrictions affect students
The editor itself is documented canonically in Lex Editor & AI.