MyLab / Pearson homework
Drives a Pearson MyLab (MathXL) assignment end to end with the Claude in Chrome
tools. The full runbook — every trap, with the fix — is
tooling/MYLAB_PEARSON.md. Read it before the first interaction; what follows
is the shape of the job.
The page helper is tooling/mylab-pearson.js.
Which skill
myopenmath.com → the myopenmath skill. Different machinery (MathQuill,
hash routing, per-question submits).mylabmastering.pearson.com / mylab.pearson.com → this skill.
Ask first
Reading and computing is ordinary help. Opening an attempt, typing into boxes,
and clicking Check answer each need Max's go-ahead. One ask covers a homework
set with unlimited attempts. A timed or limited-attempt quiz is different: the
irreversible step is opening it, so quote the attempt count, time limit and due
date and ask before you start. Never enter credentials.
Steps
Get the tab into the MCP group. Clicking the assignment fires a popup that
lands outside the group — ask Max to drag it in. Never let the group reach
zero tabs, it dissolves (§1).
Promote the player to top-level before clicking Get started:
location.href = document.getElementById('ctl00_ctl00_InsideForm_MasterContent_PlayerHtml5').src
You land on tdx.acs.pearson.com with a real DOM instead of being
screenshot-only. This is the move that makes the whole run fast (§2).
Paste tooling/mylab-pearson.js, then __ML.hookPopups().
Scope it: question count, points, due date, and whether tries are limited.
Per part: __ML.q() to read → __ML.openFig() + __ML.fig() for any
figure → compute → click the left edge of the box and type → verify with
__ML.fields() → __ML.hit(/^Check answer/).
Confirm with __ML.score(), then __ML.hit(/^Next/).
Write the study note into output/study-notes/<course>-<set>.md, same
format as the myopenmath skill's step 6: a topics: line, then Formulas,
Strategies, Traps, Question index. Write it right after the last question,
while the work is still in context.
The five that actually cost something
- Read graphs from the alt text, not the SVG.
__ML.fig() returns a
screen-reader description listing every plotted coordinate exactly. Parsing the
layered SVGs is a last resort.
- Click the left ~22% of an answer box. The right side is a math-palette
button; hit it and your keystrokes vanish into a focused button while the box
stays empty.
- Clear a box with
cmd+a then Delete. Backspace corrupts it silently
(10 → typing 9 produced 90).
- Parts are revealed one at a time and later parts depend on earlier ones.
Keep the figure data and your previous answers to hand; re-query field
coordinates and scroll before clicking, because new parts appear below the fold.
- Tries are per part (3 for free response, often 2 for multiple choice), and a
wrong answer disables Check answer until you change something. "Unlimited per
question" on the overview does not mean unlimited per part.
Stats content traps
- Class limits are
(lower, lower+width−1), not (lower, lower+width) —
midpoint 5 with width 10 means the class 0–9.
- A frequency polygon's first and last points are zero anchors, not classes.
- On an ogive, "p% below" reads x at y = p/100; "p% above" reads x at y = 1−p/100.
- Ties are real — when two candidates tie, MyLab wanted the later one.
1---2name: mylab-pearson3description: Work a Pearson MyLab / MyLab Statistics / MathXL homework set or quiz — launch it through the popup, read each question, compute, fill the answer boxes, and submit. Use whenever Max points at a MyLab, MyLab Stats, Mastering, MathXL or Pearson assignment, says a stats homework is "in MyLab", asks to do/finish/check a numbered set like "2.3" or a chapter review quiz, or when an assignment turns out to be hosted at mylabmastering.pearson.com / mylab.pearson.com / tdx.acs.pearson.com. Covers the popup launch, promoting the player out of its iframe, the custom math answer boxes, and reading graphs from their alt text. Not for MyOpenMath (myopenmath.com) — that is the `myopenmath` skill.4---56# MyLab / Pearson homework78Drives a Pearson MyLab (MathXL) assignment end to end with the **Claude in Chrome**9tools. The full runbook — every trap, with the fix — is10**`tooling/MYLAB_PEARSON.md`**. Read it before the first interaction; what follows11is the shape of the job.1213The page helper is **`tooling/mylab-pearson.js`**.1415## Which skill1617- `myopenmath.com` → the **`myopenmath`** skill. Different machinery (MathQuill,18 hash routing, per-question submits).19- `mylabmastering.pearson.com` / `mylab.pearson.com` → **this skill**.2021## Ask first2223Reading and computing is ordinary help. **Opening an attempt, typing into boxes,24and clicking Check answer each need Max's go-ahead.** One ask covers a homework25set with unlimited attempts. A **timed or limited-attempt quiz is different: the26irreversible step is opening it**, so quote the attempt count, time limit and due27date and ask before you start. Never enter credentials.2829## Steps30311. **Get the tab into the MCP group.** Clicking the assignment fires a popup that32 lands outside the group — ask Max to drag it in. **Never let the group reach33 zero tabs**, it dissolves (§1).34352. **Promote the player to top-level** before clicking *Get started*:36 `location.href = document.getElementById('ctl00_ctl00_InsideForm_MasterContent_PlayerHtml5').src`37 You land on `tdx.acs.pearson.com` with a real DOM instead of being38 screenshot-only. This is the move that makes the whole run fast (§2).39403. **Paste `tooling/mylab-pearson.js`**, then `__ML.hookPopups()`.41424. **Scope it**: question count, points, due date, and whether tries are limited.43445. **Per part**: `__ML.q()` to read → `__ML.openFig()` + `__ML.fig()` for any45 figure → compute → click the **left edge** of the box and type → verify with46 `__ML.fields()` → `__ML.hit(/^Check answer/)`.47486. **Confirm** with `__ML.score()`, then `__ML.hit(/^Next/)`.49507. **Write the study note** into `output/study-notes/<course>-<set>.md`, same51 format as the `myopenmath` skill's step 6: a `topics:` line, then Formulas,52 Strategies, Traps, Question index. Write it right after the last question,53 while the work is still in context.5455## The five that actually cost something5657- **Read graphs from the alt text, not the SVG.** `__ML.fig()` returns a58 screen-reader description listing every plotted coordinate exactly. Parsing the59 layered SVGs is a last resort.60- **Click the left ~22% of an answer box.** The right side is a math-palette61 button; hit it and your keystrokes vanish into a focused button while the box62 stays empty.63- **Clear a box with `cmd+a` then `Delete`.** Backspace corrupts it silently64 (`10` → typing `9` produced `90`).65- **Parts are revealed one at a time and later parts depend on earlier ones.**66 Keep the figure data and your previous answers to hand; re-query field67 coordinates and scroll before clicking, because new parts appear below the fold.68- **Tries are per part** (3 for free response, often 2 for multiple choice), and a69 wrong answer disables Check answer until you change something. "Unlimited per70 question" on the overview does not mean unlimited per part.7172## Stats content traps7374- Class **limits** are `(lower, lower+width−1)`, not `(lower, lower+width)` —75 midpoint 5 with width 10 means the class **0–9**.76- A frequency polygon's first and last points are **zero anchors**, not classes.77- On an ogive, "p% below" reads x at y = p/100; "p% above" reads x at y = 1−p/100.78- Ties are real — when two candidates tie, MyLab wanted the **later** one.
98ping