Do students need an account too?

No. Students just enter the join code their teacher created. There's no email or password to set up, so getting a class going takes under a minute.

Is there anything to install?

Nothing at all. Open the address in a browser and both teachers and students are ready to go. PC, tablet or phone — the same screen follows you.

Can I use last year's material with a new class?

Yes. One copy button in the module library brings it over to another class or the next term. The better the lesson, the easier it is to reuse.

Does the AI tutor just answer anything?

It answers from the module being studied rather than general internet knowledge, and shows which module the answer came from. That keeps it inside the boundaries you intended.

A modular class platform with nothing to install

From lesson prep to review,
it all happens in one place

Drag a block in and it becomes lesson material; one button opens a live class. The AI tutor fields the questions, and assignments file themselves.

Get started

Marketplace+ New classTTeacher▾

TEACHER DASHBOARD · LATE NIGHT

Still up late, Teacher

Grab a cold drink and take it slowly tonight.

2Classes

2Students

4Modules

My classes2

Search class names

ManualRecentNameStudents

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Nallijaku Startup Program

SVCQ9-51921Yesterday

STUDENTS

LECTURES

MODULES

Invite code SVCQ9-51921Valid for 7 days left

My own class

X2UC6-2RP3PYesterday

STUDENTS

LECTURES

MODULES

Invite code X2UC6-2RP3PValid for 2 days left

Students join with

Join code WFFM3-MX8XQ

Live class in progress

3/5 online · Timer 04:52

Why Flipsson

Teach. That's all. The prep is done.

“ I'd love to teach with AI… but it looks too hard and too expensive to even start. ”

“ It feels like a waste to leave my slides sitting in a PDF. Couldn't students ask them questions and get answers? ”

“ Attendance, progress, meeting notes… they live in five different places and I can't keep up. ”

Every moment of a class

Building, teaching and checking in all run on one thread.

STEP 1

Write lesson material like you write a document

Drag a block out of the toolbox and you're done. Put code beside your explanation and an assignment students can solve right there underneath. Character limits, required answers and accepted file types are all a click away.

Build lesson material

Heading & textCodeImage & YouTubeShort & long answers

THeading

☰Text

</>Code

▤Task

TheoryPython variables and types

✓What does this print?

1/4Scroll for the next step

Every moment of a class

Building, teaching and checking in all run on one thread.

1Build it

STEP 1

Write lesson material like you write a document

Build lesson material

Heading & textCodeImage & YouTubeShort & long answers

THeading

☰Text

</>Code

▤Task

TheoryPython variables and types

✓What does this print?

2Teach it

STEP 2

Hit "Start class" and everyone is on the same screen

Student screens follow wherever you are in the lesson. The moment an answer is submitted it becomes a coloured card on the board.

LIVE 03:12

Screen sync on/offLive answer cardsClass chat · 1:1 DM

PracticePython Basics

Live answer cards

Jimin

Solved it with a list

Seoyeon

range still confuses me

Doyun

Submitted!

Hajun

Used a for loop

9:41●●

Syncing with the teacher's screen…

Python Basics

3Think it through with the AI tutor

STEP 3

Stuck? An AI that knows the material answers

Not generic answers off the internet — it explains from the module being studied right now. Every answer comes with its source, so students can trust what they read.

Student view: module 3

Knows the session and moduleShows its sourcesFloating button anywhere

PracticeVariables and types

9:41●●

Ask the AI tutor

Why does range() start at 0?

Because Python counts from 0. range(5) gives you 0, 1, 2, 3, 4.

1 source · from module 3

4Check in together

STEP 4

Even in a quiet classroom, the board is loud

Everyone's thinking lands on one screen as coloured cards. React with likes and comments, or split into team boards to discuss. Cards sync automatically every 4 seconds.

Auto-sync every 4s

Colour cardsLikes & commentsFile attachmentsTeam spaces

Idea boardToday's question: which idea stuck with you most?

Jimin

Naming a variable felt like magic

♥12

Seoyeon

Loops made my code so much shorter

♥8

Doyun

Lists were the most useful part

♥15

Hajun

IF-ELSE is genuinely fun

♥6

Jimin

Now I get the indentation rules

♥9

Seoyeon

I finally understand how range works

♥11

9:41●●

Ask the AI tutor

Which idea stuck with you most?

Doyun

Lists were the most useful part

See it work

Open the AI tutor right from the class management screen.

One button slides the AI tutor in the moment you're stuck. It works from the class material on your screen — the real screen, thinking it through with you.

MarketplaceTTeacher▾

← Back to class management

Nallijaku Startup Program

Four modules walk you through turning an idea into a business.

Created June 27, 2026

AI tutor on

▷ Start classOnce you start, students can join the live class.

INVITE CODE

SVCQ9-51921 Join QR Students (2)Revoke now

Until July 6, 2026

Modules+ Add module

Recent announcementsNew announcementView all

No announcements yet.Open

Recent assignmentsCreate assignmentView all

No assignments created yet.

Module 1. Entrepreneurship basics✎ Rename3 / 30+ Add block

AI TUTOR

AI tutor · Nallijaku Startup Program

Ask a question

This is the AI tutor opened on the real class management screen

We got these too

The little chores of running a class, filed away for you.

You don't have to keep track — Flipsson handles the tidying up after class.

Module library

Build a lesson once, and it stacks up in your library

MODULE 1

Data types

Coding class / Variables and types

Copy

MODULE 1

Writing functions

Python Basics / Functions and modules

Copy

Moving it to another class or next term takes one copy button.

Announcements

Write an announcement once

Whole class or a single session — it lands exactly where it needs to.

Students & submissions

Who handed it in and who didn't, at a glance

You can see each student's submissions and activity without having to ask.

Python Basics · students

Search by student name

ID 5Z8A-HKF4Minjae Kim⋯

ID 93DJ-CD32Jihu Park⋯

ID 58FV-1ACZSeoyeon Lee⋯

Student session home

Students see today's to-do list too

Announcements, assignments and modules summarised on one page. "I didn't know about it" goes away.

</> Python Basics Assignment Announcement

How it works

Whoever you are, starting is simple.

Pick a side and we'll walk you through that side's day.

Teacher view

Marketplace+ New classTTeacher▾

TEACHER DASHBOARD · LATE NIGHT

Still up late, Teacher

Grab a cold drink and take it slowly tonight.

2Classes

2Students

4Modules

My classes2

Search class names

ManualRecentNameStudents

Edit

Nallijaku Startup Program

SVCQ9-51921Yesterday

STUDENTS

LECTURES

MODULES

Invite code SVCQ9-51921Valid for 7 days left

My own class

X2UC6-2RP3PYesterday

STUDENTS

LECTURES

MODULES

Invite code X2UC6-2RP3PValid for 2 days left

1Create a class and share the codeAn invite code and QR appear the moment you create it.

2Assemble material out of blocksGot last year's module? Start by copying it from the library.

3Hit "Start class"Student screens follow along and answers gather live.

4Check submissions, reuse next timeA module that worked goes straight to the next class.

Beta feedback

Beta teachers got there first.

We shaped it with teachers in real classrooms before launch. (Below is feedback from our beta teachers.)

Ms. Kim

Middle school, computer science

★★★★★

"Dragging blocks in gives me a worksheet, so prep time dropped sharply. Copying last year's module is the best part."

Mr. Lee

High school, coding club

★★★★★

"Once live is on, even the quiet students post answers as cards. I can see who's stuck right away, so nobody gets lost."

Ms. Park

Girls' middle school, computing

★★★★★

"When a student asks at night, the AI tutor answers from the class material — and shows where the answer came from, so I trust it."

Pricing

Right now, all of it is free.

Sessions, modules, assignments, live classes, boards, AI tutor — every core teaching feature is on the Free plan.

Zero installs

Straight from the browser

10 block types

Drag them in and the material is done

4-second sync

Boards and answers update live

Start at ₩0

Every core feature free

FREE PLAN

₩0/ month

✓Sessions, modules, assignments and practice — all of it
✓Live classes · idea and team boards · AI tutor
✓Class announcements, discussion board, email verification

Get started

classes / account

sessions / class

modules / class

students per join code

20MB

upload size

blocks / module

FAQ

Just this much before you start.

Build it today, teach it tomorrow.

Teachers open a class in five minutes; students join with one code.

✓In the browser, nothing to install✓Students join with a code✓Free, no card required

Get started Support

From lesson prep to review,it all happens in one place

Teach. That's all. The prep is done.

Building, teaching and checking in all run on one thread.

Write lesson material like you write a document

Building, teaching and checking in all run on one thread.

Write lesson material like you write a document

Hit "Start class" and everyone is on the same screen

Stuck? An AI that knows the material answers

Even in a quiet classroom, the board is loud

Open the AI tutor right from the class management screen.

The little chores of running a class, filed away for you.

Build a lesson once, and it stacks up in your library

Write an announcement once

Who handed it in and who didn't, at a glance

Students see today's to-do list too

Whoever you are, starting is simple.

Beta teachers got there first.

Right now, all of it is free.

Just this much before you start.

Build it today, teach it tomorrow.

From lesson prep to review,
it all happens in one place