Listening

# Which One?

Listener responding by function, feature, and class

The learner hears a question such as “Which one do you eat?”, “Which one has wheels?”, or “Which one is an animal?” and taps the answer from 3, 4, or 6 photos.

 [Open Which One?](https://aba-tools.com/tools/which-one)

## When

-   After the learner can find these pictures by name (for example in Find It).
-   Teaching what things are for, what they have, and what group they belong to.
-   Building toward intraverbal answers to the same questions.

## Why

-   Recorded voice asks each question the same way every trial.
-   Items that could also be a fair answer (a toilet for “sit on”, a picture of a grocery store for “eat”) never appear as wrong choices.
-   Questions with more than one answer (dog, cat, bird, and fish for “animal”) rotate through all of them.
-   A wrong tap highlights the right picture and asks again, as a prompt that isn’t scored as correct.

## How

1.  On the setup screen, pick a level: **Function · 3**, **Feature · 4**, **Class · 4**, or **Mixed · 6 messy** (all three kinds of question, with three photos of each item). Then tap **Play**.
2.  The first question plays right away. Tap the speaker button to repeat it. The question is also written below it for you.
3.  Let the learner respond. A correct tap earns stars and moves on. A wrong tap prompts the right answer.
4.  Use **Skip**, **Log**, **Hold to reset**, and **End** the same way as in Find It. Rounds are 10 trials.

**Saved to the dashboard:** The first tap on every trial, plus skips. Each question is its own target, and the most common errors show the picture chosen instead. Changing the level starts a new phase on the graph.

## More learner activities

- **[Flashcards](https://aba-tools.com/guide/flashcards)** (Naming & recognition): Naming pictures (tacts) in discrete trials
- **[We & They](https://aba-tools.com/guide/pronouns)** (Language): Pronoun discrimination: we, they, he, she
- **[Find It](https://aba-tools.com/guide/find-it)** (Listening): Listener responding: hear a word and tap the picture
- **[Match It](https://aba-tools.com/guide/match-it)** (Matching): Visual matching to sample
- **[Sort It](https://aba-tools.com/guide/sort-it)** (Matching): Sorting pictures by class, function, or feature
- **[Count & Compare](https://aba-tools.com/guide/count)** (Math): Early math: numerals 1–5, counting, matching numbers to amounts, more and less, and size
- **[Word Match](https://aba-tools.com/guide/word-match)** (Reading): Early reading: matching printed words to pictures, and letters
- **[My Way](https://aba-tools.com/guide/my-way)** (Communication): A functional request (mand), for example in FCT
- **[Toothbrushing](https://aba-tools.com/guide/toothbrushing)** (Daily routines): A 9-step toothbrushing chain (task analysis)

Every tool, learner profiles, and questions are in the guide. [Back to the guide](https://aba-tools.com/guide)

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From https://aba-tools.com/guide/which-one