A place to prepare the explanation.

Start from a worked example

Use the lesson library to explore binary search, a loaded voltage divider, or the effect of an outlier. Every lesson includes assumptions, a student task and reasoning for its exit question.

Make the plan your own

Adapt an example or start with a blank plan. Your changes save on this device. Export Markdown for editing elsewhere, or use your browser’s print dialog to save a PDF.

Use the demonstration in class

Open a lesson and choose “Present demonstration” to make room for the visual. The controls remain available. Exit the view with the same button or the Escape key.