This original four-item activity checks printed letter identity across uppercase and lowercase. It does not test spoken letter names, handwriting, letter sounds or word decoding.

Four stable pairs and four original items
Use the teacher reference pairs A–a, B–b, D–d and M–m. Keep each pair attached to its exact printed forms; b and d are different letters, not uppercase/lowercase versions of one another.
| Item ID | Lowercase stimulus | Uppercase choices | Separate teacher key |
|---|---|---|---|
| Q1 | a | A / B / M | A |
| Q2 | b | B / D / M | B |
| Q3 | d | B / D / A | D |
| Q4 | m | M / A / D | M |
The question set and keys are original. Give the clean learner copy blank selections, and keep the teacher key separate from learner responses. All four items have written choices; no external font, sound recording or copied worksheet artwork is required.
Education.com's public letters resource index describes uppercase/lowercase matching alongside distinct letter-sound activities. Only that public description informs the task distinction here; paid activity content and answer keys were not used.
Make the printed comparison visible
Before teaching, check the actual chosen typeface and glyphs. For the proposed plain lowercase forms, the b hint refers to a stem on the left with the bowl on the right; the d hint refers to a stem on the right with the bowl on the left. Verify those details in the actual rendering before using them, rather than assume every decorative font shows them identically.
Display the stimulus large enough to inspect and place it near its choices. Retain text labels for the letters so the task does not depend on an unlabeled image or color-only cue. A teacher should confirm the accessible presentation appropriate to the learner; a description of the letter can supply a different amount of help than a purely visual task, so record support when interpreting a response.
In the companion, use labeled native choices with keyboard access and visible focus. Avoid a drag-only task whose success depends on moving a tiny letter accurately. The target is matching letter identity, not pointer precision.
Give a hint tied to the selected error
For Q2, choosing D, the original planned feedback is:
“D pairs with d. Look at b: in this typeface, its stem is on the left and its bowl is on the right. Choose the uppercase partner of b.”
For Q3, choosing B, the original planned feedback is:
“B pairs with b. Look at d: in this typeface, its stem is on the right and its bowl is on the left. Choose the uppercase partner of d.”
These hints require the font check above. They distinguish the wrong letter pair from the requested one, without assigning a diagnosis or saying the learner cannot read.
Check against the exact displayed key. Do not normalize every response to lowercase and discard the upper/lowercase target distinction. Stable choice IDs should remain bound to the intended displayed letter.
Count items rather than repeated clicks
For the companion’s local feedback count, give each item at most one point: four unique items, maximum four. Checking Q2 correctly three times still contributes one correct item, not three points.
A blank remains unanswered. An incorrect choice permits another attempt rather than locking the learner out. If a selection changes, clear its old feedback and remove its previous checked result from the count immediately. Recompute from the current checked item results when the new response is checked. Reset clears all four selections, feedback and the count; it does not erase an official school record.
The companion uses these fixed question and key bindings. Test the actual font, question/key bindings, retry, repeated check, changed answer and reset together with keyboard operation and narrow-screen readability before assigning the digital activity.
Keep spoken evidence separate
A teacher may additionally ask the learner to name a letter aloud and record the actual observation. Leave that field blank until observed. A click on A does not establish that the learner said its name, produced a sound or decoded a word.
Keep required grades and actual learner evidence in the school workflow. Local practice feedback can describe the selections made in that activity; it cannot certify alphabet mastery from four items or assess pronunciation without actual evidence and an appropriate process.
Copy an exact-letter activity brief
Create one complete, self-contained US-English HTML companion for “Find the uppercase partner”. Return the full HTML document, with inline CSS and any JavaScript needed for the local interactions. Use the original scenario, named records, numbers and expected cases below.
Design the page for this task: use clearly labeled input or source records, a readable result or worked example, and an adjacent explanation of the evidence. Use a restrained visual hierarchy, left-aligned text, readable tables or stacked records, and a responsive layout at 720px and 360px. Provide meaningful labeled controls for Q1 · a; Q2 · b; Q3 · d; Q4 · m; Check pair; Clear this item; Reset all four. Use keyboard-accessible native controls and visible focus. Keep the complete content readable without an external dependency.
The following brief supplies the substantive content and constraints. Native-format requests describe the material to represent or copy manually; this HTML must not pretend to create DOCX, XLSX, PDF, PPTX, H5P or another native file, run Python/Flask/Django/Snowflake/Power BI, connect a live service, send messages, or perform an authorized real-world action. Where the task requires a native source, actual observation or separate approval, retain that requirement and leave unsupplied evidence blank.
Prepare an original alphabet matching activity in US English.
Learner/access context and teacher-confirmed typeface: [enter]
Exact lowercase stimuli, uppercase choices and stable item/choice IDs: [paste]
Separate teacher identity keys and glyph-specific hints: [paste]
Required clean learner/teacher material format: [enter]
Optional actual spoken-name observation process: [enter or NOT INCLUDED]
Preserve exact displayed letter identity and case. Original fixtures:
Q1 a, choices A/B/M, key A; Q2 b, choices B/D/M, key B;
Q3 d, choices B/D/A, key D; Q4 m, choices M/A/D, key M.
b/d are different identities; B/b and D/d are pairs. Verify actual glyph
stem/bowl hints before use. Provide labeled native keyboard-accessible choices,
visible focus and textual feedback. Blank stays unanswered; retry allowed. Count each unique item once, maximum 4; repeated checks add no points. Changed
selection clears stale feedback and removes the previous checked count
immediately; reset empties all selections, feedback and count. Keep teacher keys and blank actual responses separate. Do not infer spoken
names, sounds, handwriting, decoding, diagnosis or mastery from clicked choices.
Return the task/material specification, separate keys and later test checklist. Any HTML practice controls need actual construction and testing. No external
audio/font, score collection, saved learner records or automatic assessment.
COMPLETE AUTHORED SCENARIO AND EXPECTED CASES
The following is the supplied reading/teaching/calculation record to represent in the companion. Preserve its particular content, examples, source references and unknowns. Wording about a future native implementation refers to that native task, not permission to omit this HTML companion.
# Alphabet Interactive Worksheets: Match the Letter Across Cases Without Mixing Up b and d
A learner chooses D for a printed b. “Try again” alone does not tell them which comparison to make. Show the lowercase stimulus beside labeled uppercase choices, then explain the relevant letter pair without claiming to know why the error occurred.
This original four-item activity checks **printed letter identity across uppercase and lowercase**. It does not test spoken letter names, handwriting, letter sounds or word decoding.
## Four stable pairs and four original items
Use the teacher reference pairs **A–a, B–b, D–d and M–m**. Keep each pair attached to its exact printed forms; b and d are different letters, not uppercase/lowercase versions of one another.
| Item ID | Lowercase stimulus | Uppercase choices | Separate teacher key |
| --- | --- | --- | --- |
| Q1 | a | A / B / M | A |
| Q2 | b | B / D / M | B |
| Q3 | d | B / D / A | D |
| Q4 | m | M / A / D | M |
The question set and keys are original. Give the clean learner copy blank selections, and keep the teacher key separate from learner responses. All four items have written choices; no external font, sound recording or copied worksheet artwork is required.
[Education.com's public letters resource index](https://www.education.com/resources/grade-k/interactive-worksheets/english-language-arts/alphabet/letters/) describes uppercase/lowercase matching alongside distinct letter-sound activities. Only that public description informs the task distinction here; paid activity content and answer keys were not used.
## Make the printed comparison visible
Before teaching, check the actual chosen typeface and glyphs. For the proposed plain lowercase forms, the b hint refers to **a stem on the left with the bowl on the right**; the d hint refers to **a stem on the right with the bowl on the left**. Verify those details in the actual rendering before using them, rather than assume every decorative font shows them identically.
Display the stimulus large enough to inspect and place it near its choices. Retain text labels for the letters so the task does not depend on an unlabeled image or color-only cue. A teacher should confirm the accessible presentation appropriate to the learner; a description of the letter can supply a different amount of help than a purely visual task, so record support when interpreting a response.
In the companion, use labeled native choices with keyboard access and visible focus. Avoid a drag-only task whose success depends on moving a tiny letter accurately. The target is matching letter identity, not pointer precision.
## Give a hint tied to the selected error
For **Q2, choosing D**, the original planned feedback is:
**“D pairs with d. Look at b: in this typeface, its stem is on the left and its bowl is on the right. Choose the uppercase partner of b.”**
For **Q3, choosing B**, the original planned feedback is:
**“B pairs with b. Look at d: in this typeface, its stem is on the right and its bowl is on the left. Choose the uppercase partner of d.”**
These hints require the font check above. They distinguish the wrong letter pair from the requested one, without assigning a diagnosis or saying the learner cannot read.
Check against the exact displayed key. Do not normalize every response to lowercase and discard the upper/lowercase target distinction. Stable choice IDs should remain bound to the intended displayed letter.
## Count items rather than repeated clicks
For the companion’s local feedback count, give each item at most one point: **four unique items, maximum four**. Checking Q2 correctly three times still contributes one correct item, not three points.
A blank remains unanswered. An incorrect choice permits another attempt rather than locking the learner out. If a selection changes, clear its old feedback and remove its previous checked result from the count immediately. Recompute from the current checked item results when the new response is checked. Reset clears all four selections, feedback and the count; it does not erase an official school record.
The companion uses these fixed question and key bindings. Test the actual font, question/key bindings, retry, repeated check, changed answer and reset together with keyboard operation and narrow-screen readability before assigning the digital activity.
## Keep spoken evidence separate
A teacher may additionally ask the learner to name a letter aloud and record the actual observation. Leave that field blank until observed. A click on A does not establish that the learner said its name, produced a sound or decoded a word.
Keep required grades and actual learner evidence in the school workflow. Local practice feedback can describe the selections made in that activity; it cannot certify alphabet mastery from four items or assess pronunciation without actual evidence and an appropriate process.
## Copy an exact-letter activity brief
Implement the local companion rather than returning a text-only plan. Preserve every numerical fixture and the distinction between illustrative expectations and actual evidence. Any native-runtime or classroom tests mentioned above remain tests to perform in the proper environment; do not mark them passed. Keep edits and practice responses in this open page only, without claiming persistent storage. Provide invalid/missing-input feedback and reset behavior that agree with this specific brief. Do not claim accessibility certification, learning gains, real approvals or test results that were not observed.
Compare Q2 and Q3 with the verified printed glyphs and teacher keys before offering the activity. Keep actual observations in the required school workflow, and describe what the learner matched separately from anything they were asked to say or read.