This original weather activity compares four fictional feature cards. It uses three broad cloud-form categories and an insufficient-evidence option. It does not provide a complete cloud taxonomy, live observations or a weather forecast.
Match form rather than color alone
NOAA's JetStream explanation describes hair-like wispy cirro-form clouds, detached fluffy cumulo-form clouds and broad layer-like strato-form clouds. This packet adopts those three broad forms for a limited feature comparison, without copying NOAA's cloud photos or claiming these are all cloud types. The Four Core Types of Clouds
Keep a blank learner sheet with card ID, supplied feature clues, chosen form or insufficient evidence, reason and additional feature needed. Reveal the teacher key separately.
The feature descriptions below are invented teaching cards, not observations from a real day:
| Card | Supplied description | Separate key | Key evidence |
|---|---|---|---|
| C1 | High, thin, wispy and hair-like | Cirro-form | Wispy hair-like form, with supplied high position |
| C2 | Detached, fluffy, sharply outlined, with a flat base | Cumulo-form | Separate puffy forms, sharp outlines and flat base |
| C3 | Broad blanket-like layer with diffuse edges | Strato-form | Wide layer and diffuse edge description |
| C4 | “Gray in the sky” | Insufficient features | Color alone does not supply the needed shape, extent or edge clues |
Ask learners to point to the words supporting the match. A category selected without an explanation can hide a guess based on color or a memorized picture.
Make the unknown card useful
For C4, ask: “Is it wispy, detached and fluffy, or a broad layer? How far does it extend, and what are its edges like?” The purpose is to request more descriptive evidence, not assume an answer from the word gray.
Do not invent those missing observations. C4 remains insufficient until a supplied revision adds relevant features. If the teacher later revises the card, retain its version and clear old feedback so a new description is not evaluated against an earlier answer.
“Insufficient features” is the keyed outcome for C4, not a wrong response. A learner who has not responded is in a different state: unanswered. Keep those states distinct in the native packet and any later view.
Design illustrations that agree with the text
The local teaching schematics show thin wisps for C1, separate puffy shapes and flat bases for C2, and an extended layer with diffuse edges for C3. Mark these as teaching schematics, not weather photos or actual observations. These original schematics illustrate the supplied feature descriptions.
For C4, preserve the limited statement rather than drawing a detailed cloud that silently supplies the missing answer. The textual feature description must remain available without a picture and should not require a color-only distinction.
This activity deliberately uses only three selected broad forms. It does not declare nimbus invalid or claim that all species and mixed cloud types fit this small key. Keep the limited classification contract visible.
Keep cloud matching separate from forecasting
The cards provide no observation time, location, temperature, pressure or forecast evidence. They cannot support a claim that rain will occur at a particular time or that a learner has made a real weather assessment.
Use four unique rounds, C1–C4. A proposed local check/reveal/reset view should bind each answer to its current description, clear feedback after feature edits and return learner entries to blank on reset. It includes no image upload, automated photo classifier, location access or live weather API. Actual learning results are not supplied; check the local controls in the intended host.
Copy this prompt for the cloud-feature packet
Prepare an original US-English cloud-feature matching packet with blank learner clue/classification/reason fields and a separate teacher key. Do not build a game, forecast weather or claim actual observations, agency approval, automated image classification or learner results.
Four original fixed cards: C1 high/thin/wispy/hair-like -> cirro-form. C2 detached/fluffy/sharp outline/flat base -> cumulo-form. C3 broad blanket-like layer/diffuse edges -> strato-form. C4 only Gray in the sky -> insufficient features. Ask shape/extent/edge questions; do not invent observations, forecast storm or use color alone. Insufficient is valid C4 key; unanswered distinct.
Scope three adopted broad forms plus unknown, not complete cloud taxonomy or claim nimbus invalid. Original schematic designs must match text and be marked teaching, not photos: C1 wisps, C2 detached puffy shapes/flat bases, C3 broad diffuse layer. Do not add detailed C4 imagery that supplies its missing answer. Text alternatives required; actual graphic creation pending.
Native fields card ID/features/choice/reason/additional feature needed; actual learner records blank. Four unique rounds; repeats not extra items or mastery. Specify later check/reveal/reset states with description version retained, feature edits clearing stale feedback and reset blank. Native packet authoritative, actual controls/keyboard/360px/width checks pending. No weather time/temperature/rain certainty/safety advice, image upload/GPS/live API, student data or persistence. No NOAA photos/cards copied.
Put the feature evidence beside the category
The local HTML activity places each feature description, category key and uncertainty question together. NOS supports saving and rendering prepared HTML. Retain the maintained native feature packet and key.
Explore NOS to present the prepared matching activity. A learner should leave able to name the features supporting a category and ask for the evidence missing from an uncertain card.