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What is a matrix selector and how does it work?

A matrix selector is an advanced interaction format. It helps a user connect two ideas together. The format uses an interaction state object to track user choices.

By Pawan Nayar · from the LLOS AI Learning record

The rule

A matrix selector is an advanced interaction format.

It helps a user connect two ideas together. The format uses an interaction state object to track user choices.

A matrix selector asks a user to choose one cell in a grid. The grid has columns and rows. Each column and row has a label. The user must find the cell where the column label and row label meet. This format is good for showing how two ideas combine.

A student is learning grammar. The teacher uses a matrix selector. One column is 'Past' and one row is 'Perfect'. The student must click the cell where 'Past' and 'Perfect' meet. This shows the student understands how these two concepts combine.

Words you'll need

Resolved from this lesson's own record — real definitions, not invented for this page.

Human-Computer Interaction

How people and computers communicate and work together

Information Architecture

How information is organized and labeled so people find it

Knowledge Representation

How AI stores and uses information it knows

Design Patterns

Reusable solutions to common problems in design

Questions people ask

More from the same record, pulled by shared topic — not written new for this page.

How can an AI model help a user sort many items into two groups?

An AI model can use a binary toggle grid. This tool shows a user many items.

How can an AI model help a user put sentences or paragraphs in the correct order?

The sequence_sorter format is an advanced tool. It uses an interaction_state object to manage user input.

What features does the interactive piano keyboard have?

The interactive piano keyboard uses the Web Audio API. It has 25 keys, from C3 to C5.

How does an AI model create a crossword puzzle?

An AI model uses the `crossword` format ID. This format is a native quiz type.

What to remember

A matrix selector is an advanced interaction format. It helps a user connect two ideas together. The format uses an interaction state object to track user choices.