RPM lessons, built as teach-and-ask beats
How a Rapid Prompting Method lesson is put together, what each of the three question types is actually measuring, and a complete example you can read end to end.
An RPM lesson is not a worksheet. It is closer to a script: a short run of teaching, a question, more teaching, another question. The Rapid Prompting Method was developed by Soma Mukhopadhyay, and HALO, the organization she founded, is where the method is taught. What follows is the shape of a lesson, and how each part earns its place.
The unit is a beat rather than a page. The practitioner reads a segment of real academic content aloud, spelling and handwriting a few keywords while they go, and then asks a question with exactly two written options. The learner selects one. Then the next segment starts. The pacing is the whole design. Content arrives in pieces small enough that a question can sit on top of each piece while it is still fresh.
What a segment contains
Each segment is four things at once, and skipping any of them changes what the lesson does.
- Teaching text of roughly 90 to 110 words, about five to eight sentences, written so that one fact sits in each sentence. That constraint sounds fussy until you try to write a question on a sentence carrying two facts and find you cannot tell which one you asked about.
- Keywords, two to four per segment, that the practitioner spells aloud and handwrites in front of the learner while delivering the text. They are stage directions, not emphasis. Concrete nouns and verbs work; abstract words do not.
- Sensory beats, one or two per segment, that give the learner something to feel, draw, trace, or watch. They have to be specific and doable at the table with what is already there. A generic instruction to do a sensory activity is not one.
- Questions keyed to that segment, each offering exactly two written options in capitals with no punctuation, because the practitioner sheet marks the correct option at print time.
What a complete lesson looks like
Here is a short one. Read the teaching text first, then look at what each question is asking for and how the two options differ.
Today we are learning about country music. Country music is a style of music that began in the southern United States. It uses instruments like the guitar, banjo, and fiddle. A banjo is a stringed instrument with a round body and a twangy sound. The lyrics in country songs often tell stories about everyday life, love, or hard times. Many country songs are known for their catchy chorus. A chorus is a part of the song that repeats several times. Country singers usually perform with a band on stage.
- 1.AskWhat type of music are we learning about today?COUNTRY MUSICROCKET SCIENCEAnswer: COUNTRY MUSIC
- 2.ExpandWould a country song be more likely to use a banjo or a trumpet?TRUMPETBANJOAnswer: BANJO
- 3.ExpandIf a country song tells a story about hard times, would you expect the lyrics to feel happy or sad?SADHAPPYAnswer: SAD
- 4.SpellingHow do you spell banjo?B-N-A-OB-A-N-J-OAnswer: B-A-N-J-O
The three question types
RPM lessons use three question types and no others. All three are binary choices, and all three are measuring different things.
- Ask confirms the learner was listening and that the motor selection is working. The answer comes straight out of the sentence just read, with no inference needed.
- Expand pushes into reasoning. The answer is not stated anywhere in the teaching text, so the learner has to deduce it, compare two possibilities, or make a judgment.
- Spelling targets a keyword from the lesson, presented as two letter strings, one correct and one not. Each spelling question uses a different keyword, and never the topic word already spelled in the warm-up.
Why the wrong option in an Ask has to be obvious
This is the part people get backwards. An Ask is not a comprehension challenge. Its job is to tell the practitioner whether the learner was attending and whether the selection worked. If the wrong option is subtle, a miss could mean the learner was not listening, or that positioning was off, or that they simply did not know. Three possible causes and no way to tell them apart is a broken instrument. So the wrong option in an Ask should be far away: turtles against seahorses, geometry against alphabet. An attending learner should never hesitate.
Expand is the mirror image. There the wrong option should be a plausible line of reasoning, because a learner who has to choose between two believable answers is doing the thinking the beat exists for. One question type wants distance between the options, the other wants closeness, and writing them the same way collapses the lesson into a single kind of demand.
How RPM differs from paragraph-based lessons
Letterboard methodologies agree on presuming competence and differ on how a lesson is built. The paragraph-based approaches described on the letterboard lessons page put the content in one block and hang a mixed question set off it, with answers spelled out letter by letter. RPM breaks the content into beats and asks after each one, with the answer selected rather than spelled.
Communication 4 Everyone lessons sit somewhere between the two: substantive paragraphs, then a fixed run of four question types that includes a two-option reasoning question. If you are choosing a shape for a learner rather than following a methodology you already trained in, the AAC lesson plans page compares the options directly.
Writing them, or generating them
Everything above is writable by hand, and practitioners write RPM lessons by hand every week. The cost is time. Four segments of teaching text at the right reading level, keywords chosen so they are spellable and concrete, sensory beats that are specific enough to be useful, and a dozen questions where the Ask distractors are far and the Expand distractors are close, is an evening of work for one session.
SpellerLessons generates that structure from a topic and a learner profile: segments at the length the method wants, keywords per segment, sensory instructions tied to the actual content, and the question set across the three types. You keep the editing pass, and you should take it, because the distractor calibration is the part most worth a human eye. What you get back is a draft with the right shape in a couple of minutes.
Common questions
An RPM lesson is a script for a session rather than a page of exercises. The practitioner reads a short segment of academic content aloud, spelling and handwriting a few keywords while they go, then asks a question that offers exactly two written options. The learner selects one. Then the next segment starts and the pattern repeats. A lesson is a run of those teach-and-ask beats on a single topic, usually four to eight of them, ending with one open prompt the learner answers in their own words.
RPM was developed by Soma Mukhopadhyay, who founded HALO, the Helping Autism through Learning and Outreach organization based in Austin, Texas. HALO runs the training and publishes the source material for the method, and practitioners who want to learn RPM properly go there rather than to a lesson generator. SpellerLessons produces lesson content in the RPM shape. It does not train anyone in the method, and it is not affiliated with HALO. If you are new to the approach, start with the training and treat the generated material as something to run once you know how to deliver it.
Because the motor demand of the answer should not be the hard part of the question. Selecting one of two printed options is a small, repeatable movement, which leaves the learner free to spend their effort on the thinking. A question with six options, or one that requires spelling a full sentence, mixes two different difficulties together, so a wrong answer no longer tells you whether the learner misunderstood the content or lost the movement partway through. Two options keeps those two things separable, which is what makes the session readable to the practitioner.
An Ask checks that the learner was listening to the segment just delivered. The answer sits directly in what was read aloud, and the wrong option is obviously wrong, so an attending learner should get it right every time. An Expand asks for something the segment never stated: an inference, a comparison, a judgment. There the wrong option is genuinely plausible, because reasoning is the point. The two types look identical on the page, two words side by side, and they are measuring completely different things.
Long enough to teach something real, short enough to finish. Each segment carries roughly 90 to 110 words of teaching, about five to eight sentences, with one fact per sentence so that each sentence has exactly one thing a question can be keyed to. Four segments is about four hundred words of content and a dozen or so questions, which is a reasonable session for many learners. Six or eight segments suits a longer session or a topic that needs more building. Segment count and question count move independently.
The method is used across ages, and nothing about the structure implies a young learner. The two-choice format exists to lower motor demand, not to lower the content. An adult working through an RPM lesson should get adult subject matter written in short sentences, with the real academic vocabulary used and then glossed in the next sentence rather than swapped for an easier word. Content written for a much younger person is the most common failure in this material, and it is a content decision rather than a limitation of the format.