🐰

Meet TuTu

Your TA & Language Tutor 🥕

Li-hsin's digital twin 🍓

University of Niigata Prefecture

新潟県立大学 国際経済学部

Spring 2026 · Li-hsin Tu

Contents

目次

  1. What is TuTu?
  2. Logging in and getting around
  3. Your class content in TuTu
  4. Submitting assignments
  5. How grading works
  6. Chatting with TuTu
  7. Study Tools & the Reading Library
  8. Privacy & your data
  9. Common questions

1.What is TuTu?

TuTu is your class platform and AI teaching assistant — built by Li-hsin specifically for her classes. It is where you find your course content, submit assignments, check your grades, read announcements, and get the kind of learning support that Li-hsin wants to give you but cannot provide personally 24 hours a day.

TuTuは、Li-hsinがこの授業のために作った授業プラットフォーム兼AIティーチングアシスタントです。授業コンテンツの確認、課題の提出、成績の確認、お知らせの閲覧、そしてLi-hsinが24時間は届けられない学習サポートをTuTuが届けます。

TuTu replaces the old Canvas system entirely. Everything for this class lives inside TuTu now.

TuTuは旧Canvasシステムを完全に置き換えています。この授業のすべてがTuTuの中にあります。

What TuTu can do

What TuTu is and is not

TuTu is...

  • Your class platform and learning companion
  • Where you submit all your work
  • Available 24/7 for practice and questions
  • Where you check grades and announcements

TuTu is not...

  • A replacement for coming to class
  • A shortcut to write your assignments for you
  • An automatic final grader — Li-hsin gives your final grade on major work

Use TuTu freely

P.S. — Li-hsin

Use TuTu often, but please also come to class and come talk to me in person. TuTu helps me help you; it doesn't replace our classroom conversations.

どんどん使ってください。でも、授業にも、直接話しにも来てください。TuTuは教室での会話の代わりではありません。

You are encouraged to use TuTu as much as you want for assignment and lesson support. That is exactly what it is built for.

TuTuは、課題や授業のサポートとして、好きなだけ使って構いません。そのためにここにいます。

Li-hsin has spent many hours teaching TuTu about boundaries — what counts as helping you grow, what crosses into doing the work for you, and what academic integrity looks like in this class. You do not need to figure those lines out on your own. TuTu is designed to ask the right questions, point out where you are stuck, and help you see your own draft more clearly. Used this way, TuTu will help you produce better quality assignments and support real growth in your English at the same time.

Li-hsinは何時間もかけてTuTuに「学びをサポートする」と「代わりにやってしまう」の境界線を丁寧に教え込んでいます。皆さんが自分でその線を判断する必要はありません。TuTuは適切な質問をしたり、つまずいているところを指摘したりして、自分の文章をもっとよく見られるようにサポートします。

🐰 Why is TuTu a rabbit?

🐰 The secret reason

Between us — Li-hsin is neurodivergent (ADHD). She struggles with some things and is naturally good at others. When creating her own digital twin, she felt a curious, bouncy rabbit best resembled her teaching brain.

ここだけの話、Li-hsinはneurodivergent(ADHD)です。自分のデジタル分身を作るとき、好奇心旺盛で跳ねるようなうさぎが自分の教える脳に一番似ていると感じました。

Li-hsin's family name is 杜 (Hanyu pinyin: ). Romanized in Taiwan's Wade-Giles system, it is spelled "Tu" — the way it appears on her passport. In Mandarin, 兔 () means rabbit. It's a cute pun.

Li-hsinの苗字は「杜」。台湾のウェード式ローマ字では「Tu」と綴られます。中国語で「兔(tù)」は「うさぎ」。ちょっとしたかわいい言葉遊びです。

Rabbits in Japanese culture carry meanings that fit a teaching assistant well. They only hop forward — a folk symbol of advancement, of moving forward one step at a time, which is exactly what English learning asks of you. The moon rabbit in folklore is diligent and tireless, pounding mochi all night while the world sleeps; in the same spirit, TuTu works through the night so that you and Li-hsin don't have to. Rabbits are also lucky in Japan, and clever — in 因幡の白兎, the hare outwits sharks to cross the sea.

日本のうさぎは前にしか跳ねない動物で「前進」の縁起物。月のうさぎは勤勉で疲れ知らず。そして賢く機転が利きます。『因幡の白兎』では知恵でサメをだまして海を渡ります。

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2.Logging in and getting around

Logging in for the first time

  1. Open TuTu in your browser. Li-hsin will give you the link in class.
  2. Enter your university email as your ID (the full address ending in @gks.unii.ac.jp).
  3. Use the initial password Li-hsin gave you. You can change it later in Settings.

Install TuTu on your phone

TuTu works as an installable app on your phone. After you log in, follow the prompt to add TuTu to your home screen. On iPhone, tap the share button and then "Add to Home Screen." On Android, the install banner appears automatically.

TuTuはスマホのアプリとしてインストールできます。ログイン後に表示される案内に従って、ホーム画面に追加してください。iPhoneでは共有ボタン→「ホーム画面に追加」、Androidでは自動的にインストールバナーが表示されます。

The TuTu sidebar

After you sign in, you will see a sidebar with these items:

ログインすると、サイドバーに以下の項目が表示されます:

The Report an app problem button is for app problems only. For class questions, assignment questions, or grade concerns, talk to TuTu in chat or contact Li-hsin directly.

「Report an app problem(不具合の報告)」はアプリの問題専用です。授業や課題の質問、成績のご相談はTuTuとのチャットかLi-hsinに直接ご連絡ください。

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3.Your class content in TuTu

TuTu is your learning management system. All the course content that used to live in Canvas now lives here.

TuTuがあなたの学習管理システムです。以前Canvasにあった授業コンテンツはすべてここにあります。

Modules

The Modules page shows the shape of your course — organized by unit or week. Each module contains lessons, readings, links, and assignments. Some modules may show as "Coming soon" with a 🔒 — that content will open as the course progresses.

モジュールページには授業の構成が表示されます。ユニットや週ごとに、レッスン、読み物、リンク、課題が含まれています。🔒の付いた「Coming soon」のモジュールは、授業の進行に合わせて公開されます。

Announcements

Li-hsin posts announcements here — schedule changes, reminders, class updates. TuTu sometimes posts its own announcements too (for example, when a new feature is added). Check announcements regularly.

Li-hsinがお知らせを投稿します。スケジュール変更、リマインダー、授業の更新など。TuTuも時々お知らせを投稿します。定期的に確認してください。

Carrots & Conversation — TuTu's blog

Carrots & Conversation is TuTu's own weekly blog. Each post is written in TuTu's voice, in English and Japanese, and is where new features, reminders, and encouragement land first — so if you want to know what just changed in the app, this is the place to look.

Carrots & ConversationはTuTuの週刊ブログです。毎回TuTuの声で、英語と日本語で書かれ、新機能やリマインダー、応援メッセージがまずここに届きます。アプリで何が変わったか知りたいときは、ここを見てください。

Every post also has an English Corner — a few useful words and expressions from that week's post, with Japanese meanings and example sentences. A small, regular way to grow your vocabulary.

各投稿にはEnglish Cornerもあります。その週の投稿から役立つ単語や表現を、日本語の意味と例文つきで紹介します。少しずつ語彙を増やせます。

Discussions

Class discussion boards for topics Li-hsin sets up. You can post, reply to classmates, and have conversations. Your project group may also have its own private discussion space.

Li-hsinが設定したトピックについてのクラスディスカッション掲示板です。投稿したり、クラスメートに返信したり、会話ができます。

Groups

When project groups are active, the Groups page is your team's private space. You will find your group members, shared announcements, and a group discussion area there.

プロジェクトグループが活動中のとき、グループページがチームのプライベートスペースになります。

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4.Submitting assignments

Three submission types

A. Blog posts

B. Photo upload

C. File upload

Accepted formats: .jpg, .jpeg, .png, .heic, .heif, .pdf, .docx · 10 MB per file

Some assignments work differently

A few kinds of work don't use the normal submit box. If the submit box is missing, that's on purpose — look for one of these instead:

いくつかの課題は通常の提出ボックスを使いません。提出ボックスが見当たらない場合は意図的なものです。代わりに以下を探してください。

After you submit

📝 Changing your mind

Nothing is final until you lock it in. You can review TuTu's preliminary feedback, close without locking, and try again as often as you need before the deadline. Once you lock in, that's your final submission. If you lock in by mistake, contact Li-hsin and she can reset it.

「確定(lock in)」するまでは、何も最終ではありません。TuTuの仮フィードバックを見て、確定せずに閉じ、締切前なら何度でもやり直せます。確定するとそれが最終提出になります。間違えて確定した場合はLi-hsinにご連絡ください。

Once you submit, TuTu reviews your work and gives you preliminary feedback and a score based on Li-hsin's rubric. Your assignment is not yet locked at this point.

提出後、TuTuがルーブリックに基づいて仮のフィードバックとスコアを返します。この時点ではまだ課題は確定していません。

On the feedback page, you have two choices:

Once you lock in, you cannot change it unless Li-hsin resets it for you.

確定後は、Li-hsinがリセットしない限り変更できません。

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5.How grading works

Your final grade has three components:

Blog Entries and Class Assignments

Blog posts are graded on completion, not writing quality. The base is simple: 10 points for posting your entry on time, 5 points for commenting on at least 2 classmates' posts. That is 15/15 every week, guaranteed.

ブログは書く内容の質ではなく提出したかどうかで評価。投稿で10点、2人以上のクラスメートにコメントで5点。毎週15/15が保証されます。

You can earn extra credit (up to +5 per week) by commenting on additional classmates beyond the required 2.

必要な2人以上にコメントすると、追加で最大+5点のエクストラクレジットがもらえます。

Here is the important part: the model that grades your blog submission (Haiku 4.5) is fast and good at counting, but it is not great with nuance. It may miss extra effort you put in, or not catch that you commented on more people than you listed. That is where the chat button on the assignment page comes in. The chat runs on a smarter model (Sonnet) that can understand context and has the authority to grant extra credit and handle resubmission requests (for example, if you submitted a wrong link). No ask, no receive — Li-hsin's words. If you feel the grader missed something, open the chat and just say it.

ここが大事なポイントです。ブログを採点するモデル(Haiku)は高速でカウント作業は得意ですが、ニュアンスは苦手です。あなたの追加の努力を見逃すことがあります。そんな時は、課題ページのチャットボタンを使ってください。チャットはより賢いモデル(Sonnet)で動いていて、文脈を理解し、エクストラクレジットの付与や再提出リクエスト(リンク間違いなど)に対応する権限を持っています。「言わなきゃもらえない」がルールです。

Late blog submissions automatically score zero. TuTu will still give you feedback so you can learn from the work. If you'd like Li-hsin to consider restoring the points, contact her directly with your reason.

締切後のブログ提出は自動的に0点です。点数を戻してもらいたい場合は理由を添えてLi-hsinに直接ご連絡ください。

Unit Projects (UPs)

When you submit a UP, TuTu gives you detailed feedback in three sections (what you did well, suggestions, three takeaways) and a band (A, B, C, D, or F) showing roughly where your draft lands. You will see the band immediately, but the exact numerical grade comes later — Li-hsin personally reviews every UP and decides the final number.

UPを提出すると、TuTuが3部構成の詳しいフィードバックとバンド(A〜F)を返します。正確な点数はLi-hsinが各UPを個別に確認した後に確定します。

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6.Chatting with TuTu

You do not need an assignment to talk to TuTu. The chat is always open for anything related to the class — or just to practice your English.

課題がなくてもTuTuと話せます。授業に関することは何でも聞けますし、英語の練習にも使えます。

TuTu goes where you are

You don't have to leave your work to ask TuTu something. Besides the main Chat page, a floating 🐰 button follows you through the app and opens a side panel right where you are — so whatever you're reading or working on stays on screen while you ask about it:

質問するために作業を離れる必要はありません。メインの「Chat」ページに加えて、浮かぶ🐰ボタンがアプリのどこにでも付いてきて、今いる場所でサイドパネルを開きます。読んでいるものや作業中のものを画面に表示したまま質問できます。

Good ways to use TuTu

Remember, you are always the writer. TuTu is here to help you think, not to think for you. TuTu will not write your assignments for you, and copying what TuTu writes and submitting it as your own work is not acceptable.

あなたが書き手です。TuTuはあなたが考えるためのサポートで、代わりに書くためではありません。

Two feedback styles

When you submit a Unit Project, TuTu gives you a structured assessment with sections and three takeaways. For all other work — blogs, in-class writing, day-to-day chatting about your drafts — TuTu responds conversationally with shorter, more flexible feedback.

Unit Projectでは構成的な評価を返します。それ以外の課題では、より短く柔軟な会話形式でフィードバックを返します。

The AI behind TuTu

TuTu is not one single AI model — it uses different models for different jobs, each chosen for what it does best.

TuTuは1つのAIモデルではなく、それぞれの仕事に最適なモデルを使い分けています。

💰 Why different models?

Li-hsin originally ran everything on Claude Sonnet — the model she felt was the most human. But when UP1 submissions started coming in, she discovered that grading a single class's UPs on Sonnet would cost over $150 in three days. That is not sustainable on a research budget. After a lot of testing, she found that Gemini 2.5 Pro gives equally strong analytical feedback at a fraction of the cost — which means TuTu can keep running for everyone through the rest of the semester.

Li-hsinは最初すべてをClaude Sonnetで動かしていました。しかしUP1の提出が始まると、1クラスのUP採点だけで3日間に150ドル以上かかることが判明。研究費では持続できません。テストの結果、Gemini 2.5 Proが同等に強い分析フィードバックをはるかに低コストで提供できることがわかり、TuTuを学期末まで運用し続けられるようになりました。

Li-hsin continues to monitor and evaluate the models. If a better option becomes available — or if costs change — she may adjust what runs under the hood. You will always be told about major changes through announcements.

Li-hsinはモデルの評価を続けています。より良い選択肢が出たり、コストが変わったりした場合は調整することがあります。大きな変更はお知らせで必ず伝えます。

Using the Internet with TuTu

👛 Why limited?

Each time TuTu goes online, it costs a small amount from Li-hsin's research fund. Not a problem — just a reason to be intentional. Come with a relevant question and a clear purpose. 🥕

TuTuがインターネットを使うたびにLi-hsinの研究費から少し費用がかかります。目的を持って使ってください。

TuTu can go online when you ask, but first it will ask you two quick questions: (1) Which assignment is this for? (2) What are you trying to learn or find out? Once your purpose is clear, TuTu helps you.

TuTuはインターネットを使えますが、まず2つの質問をします:(1) どの課題のためか (2) 何を知りたいか。目的が明確になればサポートします。

Internet use is available for Unit Projects in all classes and Blog Entries in Eecon. For smaller assignments not on this list, TuTu will help you in another way.

インターネット利用は全クラスのUnit ProjectとEeconのブログ記事で可能です。

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6b.Study Tools & the Reading Library

Open 🧰 Study Tools from the sidebar on any page. These aren't generic add-ons — each one was designed and customized by Li-hsin around what this course actually needs, and they're free, ad-free, and built right into TuTu. No account, no sign-up, no catch.

サイドバーの「🧰 Study Tools」はどのページからでも開けます。既製の付け足しではなく、この授業で本当に必要なものに合わせてLi-hsinが一つひとつ設計・カスタマイズしたツールです。すべて無料・広告なしで、TuTuに組み込まれています。アカウントも登録も不要です。

🧰 Study Tools

📚 The Reading Library

A growing collection of readings, where every book is personally chosen and prepared by Li-hsin. Each one comes with a short note from her, a reading time, and a level, and more are added as she builds the shelf. Tap a cover to open the reader, then use 💬 Chat about this book to have TuTu read alongside you as a reading companion, asking questions, explaining, and helping you understand. (TuTu is your companion here, never a grader.)

Li-hsinが一冊ずつ自ら選び、用意した読み物のコレクションです。少しずつ増えていきます。それぞれにLi-hsinのひとことメモ、読了時間、レベルがついています。表紙をタップして読み、「💬 Chat about this book」でTuTuが読書のお供として一緒に読み、質問に答え、理解を助けます。(ここではTuTuは採点者ではなく、あなたのお供です。)

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7.Privacy & your data

What Li-hsin can see

When Li-hsin asks to see your chats

Your conversations with TuTu are between you and TuTu. Li-hsin may ask you to show her your chats in two situations: (1) if a piece of your work sounds too artificial, she will ask you to show the relevant chat and give you a chance to rewrite in your own voice; (2) if you raise a grade concern in an assignment's comment thread and she needs more context. Outside of these, your chats stay private.

TuTuとの会話はあなたとTuTuだけのものです。Li-hsinがチャットを見せてほしいとお願いするのは、(1) 提出物がAIっぽく聞こえる場合、(2) 課題のコメント欄で成績について相談し、文脈確認が必要な場合のみです。

Your data belongs to you

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8.Common questions

Q.I can't log in.

A.Use your full university email as the ID (with @gks.unii.ac.jp) and the initial password from Li-hsin. If it still doesn't work, contact Li-hsin directly.

大学メールアドレス全体をIDとして、Li-hsinから配布された初期パスワードを使ってください。それでもだめならLi-hsinに直接連絡してください。

Q.Can I use TuTu in Japanese?

A.Yes. TuTu responds in whichever language you use. Mix them freely.

はい。あなたが使う言語でTuTuも応答します。混ぜても大丈夫です。

Q.What if I accidentally lock in the wrong submission?

A.Contact Li-hsin and she can reset it for you. That is the only way to undo a locked submission.

Li-hsinに連絡してください。Li-hsinがリセットできます。確定済みの提出を元に戻す唯一の方法です。

Q.Will TuTu give me the same grade Li-hsin would?

A.TuTu uses Li-hsin's rubric, so usually yes. But TuTu is not perfect. For Unit Projects, Li-hsin always personally reviews and finalizes the grade, and you can raise anything in the assignment's comment thread. For blogs and class assignments, if something looks off, open the chat button on that assignment's page (remember: no ask, no receive).

TuTuはLi-hsinのルーブリックを使うのでほとんど同じですが完璧ではありません。UPはLi-hsinが必ず個別に確認し、気になることは課題のコメント欄で相談できます。ブログや授業課題で気になる点があれば、その課題ページのチャットボタンから相談してください(「言わなきゃもらえない」です)。

Q.Is using TuTu the same as cheating with AI?

A.No. TuTu is designed for learning, not for replacing your work. Having TuTu explain a concept, ask you questions, or give you feedback is like working with a tutor. Having TuTu write your post for you is dishonest, and TuTu will not help you do that.

いいえ。TuTuは学習のためのものです。説明を聞いたり質問してもらうのはチューターと学ぶことと同じです。

Q.What if TuTu is wrong about something?

A.It can happen. If something TuTu says contradicts what Li-hsin said in class, trust Li-hsin and let her know. If TuTu is misbehaving technically, use the "Report an app problem" button.

起こり得ます。TuTuの答えがLi-hsinの授業と違う場合はLi-hsinを信じて知らせてください。技術的な問題はサイドバーの報告ボタンからお願いします。

Q.Why does TuTu sometimes sound different?

A.TuTu uses different AI models for different tasks. The chat model (Claude Sonnet) is chosen for being the most conversational and natural to talk to. The grading models are chosen for analytical strength — they need to process Li-hsin's detailed rubrics, your student context, and the specific expectations for each assignment. That takes a different kind of AI. So when TuTu's feedback on a UP sounds more structured and less chatty than your conversations, that is by design — not a bug.

TuTuはタスクごとに異なるAIモデルを使っています。チャットモデルは最も会話的なものを、採点モデルは分析力の高いものを選んでいます。UPのフィードバックがチャットより構造的に聞こえるのは意図的なものです。

Q.Can I talk to TuTu about things unrelated to class?

A.Yes! Feel free to practice your English on any topic. However, for personal, medical, or mental health concerns, please reach out to UNP's 健康支援センター (Health and Wellness Center, コモンズ3号館1F, 025-270-7160) or someone you trust. TuTu is a study companion, not a counselor.

はい、興味のある話題で英語の練習にぜひ使ってください。ただしデリケートな内容は大学の健康支援センターや信頼できる人に相談してください。

Q.The submit box is missing on my assignment. Why?

A.Some work doesn't use the normal submit box. Peer reviews and group assignments are done in your Groups space; quizzes open in their own page. See "Some assignments work differently" in section 4.

一部の課題は通常の提出ボックスを使いません。ピアレビューとグループ課題は「Groups」で、クイズは専用ページで行います。セクション4を参照してください。

Q.What is My Study Bank?

A.It's your personal collection of useful words and expressions. You can save them while reading, while chatting with TuTu (TuTu will offer), or by hand — then review them later or turn them into flashcards.

役立つ単語や表現を集める、あなた専用の場所です。読書中やTuTuとのチャット中(TuTuが提案します)、または手動で保存でき、後で復習したりフラッシュカードにできます。

Q.Where does TuTu announce new things?

A.Two places: Announcements in the sidebar, and Carrots & Conversation, TuTu's weekly blog, where new features get introduced first — with an English Corner in every post.

2か所です。サイドバーの「Announcements」と、TuTuの週刊ブログ「Carrots & Conversation」。新機能はまずブログで紹介され、毎回English Cornerもあります。

Q.Where did Canvas go?

A.Canvas was discontinued at UNP without warning. TuTu was built to replace it, and now does so completely. All your course content, assignments, grades, and communication live in TuTu. There is no need to check Canvas for anything.

CanvasはUNPで予告なくサービスが終了しました。TuTuはその代わりとして作られ、今では完全に置き換えています。授業コンテンツ、課題、成績、連絡のすべてがTuTuにあります。Canvasを確認する必要はありません。

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Before you go

TuTu is still growing. Li-hsin builds and improves it every week alongside her teaching. That means: expect TuTu to sometimes make mistakes, slow down, or hit bugs. Your feedback — what works, what doesn't, what feels off — is genuinely appreciated and will shape what TuTu becomes.

TuTuはまだ成長中です。Li-hsinは授業と並行して毎週改善しています。TuTuはたまに間違えたり、動きが遅くなったり、バグに遭遇したりします。皆さんの声でTuTuは育っていきます。

📬 Contact

連絡先

Li-hsin Tu · Faculty of International Economics 国際経済学部
Office: 5615 · Email: lihsintu@unii.ac.jp

For questions about TuTu, tell Li-hsin in class or by email. For app problems, use the Report an app problem button in TuTu.

TuTuに関する質問は授業中かメールで。アプリの不具合はTuTu内の「Report an app problem(不具合の報告)」ボタンから。