Claude skills for teachers: quizzes and class games students open with a link

Every Friday you ask Claude for a review quiz, and every Friday it comes out in a different shape: a new layout, a missing score screen, or React code that won't run once you copy it out of Claude. A skill fixes that. You write the rules once, and Claude follows them for every quiz.

This page covers what a skill is and who can use one, the teaching skills Anthropic actually ships, a quiz-maker skill you can copy, and how the quiz reaches students who have no Claude account. Anthropic's pages quoted were read on November 6, 2026.

What a Claude skill is, and who can use one

Anthropic's help article What are skills? defines them as “folders of instructions, scripts, and resources that Claude loads dynamically to improve performance on specialized tasks.” It also states, “Skills teach Claude how to complete specific tasks in a repeatable way.” The core of a skill is one Markdown file, SKILL.md, which starts with a name and a description. Claude reads the description to decide when to use the skill.

The same article says: “Skills are available for users on Free, Pro, Max, Ultra, Team, and Enterprise plans. This feature requires code execution to be enabled.” Where you turn it on depends on your account, as Use skills in Claude describes:

Claude for Teachers is free for verified US K-12 educators, and Anthropic's help states that it “includes free access to Claude Pro features, teaching skills built for lesson planning and differentiation.” In a district's organization, “Your district's admins decide which features, models, and connectors you can use.”

Skills that exist for teachers today

There is no official list of "best Claude skills for teachers". These are the skills Anthropic itself publishes that a teacher can use:

• Claude for Teachers' 4 teaching skills. They live in Anthropic's k12-teacher-skills repository, co-developed with Learning Commons and licensed Apache-2.0. Its README describes them:

  • k12-lesson-plan-creation: “Builds classroom-ready, standards-aligned lesson plans, optionally aligned to a teacher's curriculum.”
  • k12-lesson-differentiation: “Adapts an existing lesson into tiered versions (below / at / above proficiency-level) and for specific student needs.”
  • k12-lesson-prep: “A prep partner for a lesson the teacher already has.”
  • k12-check-for-understanding: “Builds a 1–3 item formative check for a math standard, with distractors drawn from documented misconceptions.”

  On a Claude for Teachers account they're already installed. Elsewhere, the README gives commands to install them as a plugin in Claude Code. They're written to use the Learning Commons connector that comes with Claude for Teachers, and the README says to “adapt the skills if your environment does not have access to these tools.”

• Anthropic's document skills. According to Anthropic's help, they cover Word documents, PowerPoint presentations, PDFs, and Excel spreadsheets, and are “available to all users.” A worksheet to print or a slide deck for the projector comes out through these, with no setup beyond code execution.

• skill-creator. It's in Anthropic's skills repository, and its description reads “Create new skills, modify and improve existing skills, and measure skill performance.” That repository says its example skills, skill-creator among them, “are all already available to paid plans in Claude.ai.”

None of them makes a quiz or a game that students open in a browser. The lesson-plan skill's own description says “Do NOT load for grading, a rubric, assessment feedback, a quiz,” and the check-for-understanding skill covers math only. For a class quiz, write your own skill. The one below is a starting point.

A quiz-maker skill you can copy

Save this as a file named SKILL.md. Change the lines under Our class to match your class.

---
name: class-quiz-maker
description: Makes a class quiz or review game as one HTML file students open in a browser on a Chromebook or iPad, with no sign-in. Use when the user asks for a quiz, review game, or practice set.
---

# Class quiz maker

## Our class
- Grade and subject: grade 7 science
- Questions: 10 multiple choice, 4 choices each, unless I say otherwise
- Title line: the unit name, then "Practice quiz"

## The file
- Make one .html file that works on its own in a web browser. Put all the CSS and JavaScript inside it. Use plain JavaScript, not React.
- Load nothing from other websites. Don't fetch or send data anywhere, and don't use eval or new Function.
- Ask for no sign-in, no names, and no email addresses.
- Use big buttons that work with a tap on an iPad and a click on a Chromebook, and text at least 18px.
- Give me the file to download, named after the topic, such as water-cycle-quiz.html.

## The quiz
- Shuffle the questions and the choices each time the quiz starts.
- After each answer, show whether it was right and explain why in one sentence.
- At the end, show the score, list the questions missed, and add a Play again button. Keep the best score in localStorage.

## Before you finish
- Check every answer and explanation. Tell me about any question you're unsure of.

Each rule is there for a reason. One file with everything inside is something you can upload or publish as it is. The rule against calls to other websites matters twice. Anthropic's sharing guide says “Artifacts that connect to other websites” can't be shared with Anyone with the link. And a script's fetch and XHR requests on a Convika page reach only the page's own address, plus, on Pro, the analytics tools Convika supports and the hosts you list for your own ad network. A best score kept in localStorage stays on each student's own device, so the quiz itself sends nothing about them.

In a test on November 6, 2026, Claude Opus 5.5 in Claude Code wrote a 10-question water cycle quiz from these rules. It then ran under the security headers a Free Convika page sends, in the engines behind Chrome, Safari, and Firefox, with taps at an iPad's size and clicks at a Chromebook's. Every answer scored, the questions were reshuffled on each load, and the best score was still there after a reload. The skill itself wasn't tested inside claude.ai.

Anthropic's custom skills guide caps the description at 200 characters (this one is under), and says that “Claude uses this to determine when to invoke your skill.” Keep the folder name the same as the name line.

Add the skill in Claude in 4 steps

These are the steps for Free, Pro, Max, and Ultra plans, from Anthropic's help. On Team, Enterprise, and Claude for Teachers, skip step 1 and start at step 2. If the menu isn't there, your organization's owner controls it.

1. Turn on code execution

Go to Settings > Capabilities and turn on Code execution and file creation (Create and edit files in the updated layout). Without it, the help says, the Skills section doesn't show.

2. Put SKILL.md in a folder and zip it

Make a folder named class-quiz-maker, put SKILL.md in it, and compress the folder into a ZIP file. Anthropic's guide says “The ZIP should contain the skill folder as its root (not a subfolder),” so zip the folder itself, not the file on its own.

3. Upload it

Go to Customize > Skills, click the + button, then + Create skill, and select Upload a skill. Upload the ZIP file. The skill appears in your list.

4. Turn it on

Check that the toggle next to class-quiz-maker is on. Skills you upload stay private: the help says they “aren't visible to colleagues until you share them.”

If skill-creator is in your Customize > Skills list, you can also ask Claude in a chat: “Use the skill-creator skill to turn these rules into a skill,” and paste the file above. It drafts the skill, tests it on a few requests, and revises it with you.

Make a quiz with the skill

Ask for the quiz in a chat, and name the topic: “Make a quiz on the water cycle.” Claude reviews the skills you have turned on and uses the one that matches. If it doesn't, the help suggests being explicit: “Use my class-quiz-maker skill to make a quiz on the water cycle.”

Download the .html file Claude gives you and open it in your own browser, or paste its code into the HTML viewer. Play one round, and check every answer: Claude can get a fact wrong, and the skill asks it to tell you which questions it is unsure of. To change something for every future quiz, edit the skill rather than the chat.

Get the quiz to your students

Students under 18 can't have Claude accounts. Claude for Teachers' help states, “Claude for Teachers is not for students,” and Anthropic's consumer terms say “You must be at least 18 years old or the minimum age required to consent to use the Services in your location, whichever is higher.” So the quiz has to open without an account.

Claude's own Share link comes first, if your plan has it. Anthropic's sharing guide, updated November 5, 2026, says: “Most artifacts shared with ‘Anyone with the link’ open without a Claude account or sign-in.” On Pro, Max, or Ultra, open the artifact on the web or in Claude Desktop, click Share, choose Anyone with the link under Who has access, and copy the link. (The guide says “You can't change sharing settings in Claude for iOS or Claude for Android.”) Then open the link in a private window, signed out, to see what students see. Anthropic doesn't say whether opening a link without an account counts as using Claude under its terms, which set a minimum age of 18. The same guide lists the limits:

• The Free plan doesn't have it. In the guide's plan table, “Share with anyone who has the link” is ticked for Pro, Max, Ultra, Team, and Enterprise, not Free.
• On Team and Enterprise plans, an owner decides. Artifacts “stay inside your organization by default,” and “‘Anyone with the link’ is available only when an Owner has turned on External sharing or has allowed that artifact individually.” Claude for Teachers is a Claude for Teams plan, and Anthropic doesn't say whether External sharing is on for it. If the option is grayed out, the help says to “ask an Owner or Primary Owner.”
• Some artifacts can't use it. That includes “Artifacts that connect to other websites.”
• Visitors who aren't signed in see less. “The parts that use connected apps or Claude don't work for them,” and “People who aren't signed in can't see that information, so an artifact that keeps most of its content there shows them little or nothing until they sign in.” A leaderboard in Claude's saved storage stays empty for students.

For the details by plan, read how to share an artifact with students.

A published page. Publish the quiz file as a web page when your plan has no such link, when Claude gave you a file rather than an artifact, or when you need what a hosted page adds:

• Scores everyone can see. An artifact that keeps a scoreboard in Claude's shared storage keeps one list for the page on Convika, and students see it without signing in: how artifact storage works on a published link.
• A form that keeps answers. Entries arrive in your dashboard, not inside Claude.
• Visitor counts. Convika shows the page's visitors and page views by day and device.
• A link that doesn't depend on your Claude settings. Anthropic's admin guide notes that “Turning External sharing off also stops existing public links from working.”

The page opens in any browser with no account. On Convika:

1. Drop the file into the free publish-HTML tool, or switch to Paste code and paste the code, then click Get my preview link. When you see “Your preview is ready,” check the layout. This preview works for 3 minutes with the page's scripts and forms off, so the quiz won't respond yet. Don't post it.
2. Click Keep this page — free, no card and sign up. The page moves into your account, and its scripts run.
3. Click Publish page. Under Who can open this page?, choose Public and click Next. The first time, click Publish free. The page goes live at once, with the Convika bar at the bottom.
4. On the page's screen, click Copy next to the address under Live URL.

Or let Claude publish it. In Claude on the web or the desktop app, go to Customize > Connectors, click + Add, choose Add custom connector, and enter https://mcp.convika.com. Anthropic's connector guide notes that “Free users are limited to one custom connector.” Then ask Claude to put the quiz on Convika. It saves the page, returns a private preview link, and publishes only when you ask. In a district's organization, the admins decide which connectors you can add.

Then post the link. In Google Classroom, post the address as a link in a material or an assignment: the steps are in this Classroom guide. For the projector, click Show QR code next to the address under Live URL. Before class, open the link on one student Chromebook or iPad, because a school web filter can block a site it doesn't know yet. To check the page on an iPad first, see how to make an HTML quiz work on students' iPads.

Fix a question without a new link. On the page's screen, go to Update from an HTML file, click Upload a new version, drop the corrected file, and select Upload as a new version. When the card says “Preview v2 is ready,” click Open preview, then Publish v2 at the same link, and click Publish in the dialog. The link in Classroom opens the fixed quiz.

Next week's quiz. Free publishes 1 page at a time. One page can hold the week's quizzes, picked from a menu: ask Claude to add each new quiz to the same file, then upload it as a new version, and the Classroom link stays the same. A second quiz page is a second publish. If Convika takes it for a new version of the live quiz, click Publish it as another page. For a Public page, the choice is then Light ($3 a month on top of Free, for up to 5 live pages; the Convika bar stays), through Publish this page too, with Light, or Swap it in for the live page (free), which puts last week's quiz back to a draft and stops its link in Classroom. This is the rule for workspaces created on or after October 23, 2026 (Japan time); earlier workspaces keep the plan they signed up for. Pricing lists each plan.

Collect answers

A quiz made with this skill shows each student their own score and sends you nothing. To collect scores:

• For practice records, add a Google Forms link to the quiz's results screen that fills in the score. Students check it and click Submit in Google Forms. Follow the steps in how to collect HTML quiz scores with Google Forms, then add a line to the skill so every quiz gets the link.
• For a small group or homework, add a form to the page. A Convika form accepts up to 5 entries a minute and 20 an hour from one network, so a class on school Wi-Fi can't all send at once. On Free, Convika shows the first 50 entries a month across all your forms. Entries past that are saved, and Pro shows them.
• For a marked quiz, use a Google Forms quiz with an answer key.

Convika counts the page's visitors and page views by day and device, and doesn't record which students opened it. Keep students' names and grades off the page itself.

Give the skill to colleagues

The skill is one small file, so it's easy to pass on. How you share it depends on your plan:

• Team and Enterprise plans. Go to Customize > Skills, open the menu (...) next to the skill, and select Share. Anthropic's help says “Shared skills are view-only,” and “If you update the skill later, recipients automatically get the updated version at next use.” The Share button shows only if an owner has turned sharing on.
• Free, Pro, Max, and Ultra plans. “On all other plans, each person uploads skills to their own account.” Send the ZIP, and each colleague uploads it with steps 1 to 4.

Copies passed around on Free, Pro, Max, and Ultra plans drift apart once someone edits theirs. AI Skill Pod shares your team's skills with everyone at once: send one invite link, and each teacher uses the same version in their own Claude, ChatGPT or Gemini, on any plan. It's free to start. AI Skill Pod is made by the team behind Convika.

Frequently asked questions

Do students need Claude accounts to open a quiz?

No, not for most artifacts on a plan that can share by link. Anthropic's sharing guide, updated November 5, 2026, says “Most artifacts shared with ‘Anyone with the link’ open without a Claude account or sign-in.” The option isn't on the Free plan, and on Team and Enterprise plans, Claude for Teachers included, it needs an owner to turn on External sharing. Anthropic doesn't say whether opening a link without an account counts as using Claude under its terms, which set a minimum age of 18. Saved scores don't show for visitors who aren't signed in. A quiz published as a web page opens for students with no account on any plan.

Can I use Claude skills on the free plan?

Yes, you can use skills on Claude's Free plan. Anthropic's help says “Skills are available for users on Free, Pro, Max, Ultra, Team, and Enterprise plans,” and that code execution must be on. Turn it on in Settings > Capabilities, then add skills in Customize > Skills. Sharing an artifact with Anyone with the link isn't part of Free, so publish the quiz file as a page instead.

What are the best Claude skills for teachers?

The skills Anthropic publishes for teachers are Claude for Teachers' 4: lesson plan creation, lesson differentiation, lesson prep, and a check for understanding in math. They're already installed for Claude for Teachers accounts and open source in Anthropic's k12-teacher-skills repository. Anthropic's document skills make Word, PowerPoint, PDF, and Excel files. For a quiz or game students open in a browser, add your own skill, such as the one on this page.

Does a quiz made with the skill work on Chromebooks and iPads?

Yes, if the school's web filter lets the address through. The skill asks for one HTML file with big tap targets and no sign-in, which opens in Chrome on a Chromebook or Safari on an iPad. Open the link on one student device before class, because some filters block sites they haven't categorized yet.

Can students' answers come back to me?

Not from the quiz on its own. A quiz made with this skill shows each student their own score and sends nothing. Add a prefilled Google Forms link to the results screen for practice records, or use a Google Forms quiz with an answer key for a marked one. A Convika form on the page works for homework or a small group.

Sources

• Claude Help Center: What are skills? (definition, plans, code execution; updated October 30, 2026; read November 6, 2026)
• Claude Help Center: Use skills in Claude (Settings and Customize paths, uploading, sharing; updated October 30, 2026; read November 6, 2026)
• Claude Help Center: How to create custom skills (SKILL.md, the 200-character description, the ZIP; updated October 30, 2026; read November 6, 2026)
• Claude Help Center: Share artifacts (who can open a shared artifact; updated November 5, 2026; read November 6, 2026)
• Claude Help Center: Claude for Teachers, your data and our terms (read November 6, 2026)
• Claude Help Center: Get started with custom connectors (read November 6, 2026)
• anthropics/k12-teacher-skills and anthropics/skills on GitHub (read November 6, 2026)
• Anthropic: Consumer Terms of Service (minimum age; read November 6, 2026)