ブーハー・アドベンチャー
& 3つのカリキュラム

Booha Adventure is a weekly English system app with three full curricula built in. Students log in with their name and PIN and access the English they need for that week.

There are no ads, suggested videos, recommendation feed, or generative AI. The app records only the information needed to save learning progress and reports. We do not sell personal data, show ads, or build advertising profiles.

Progress can sync to the devices a student uses. The two profiles belong to the same account and show different parts of one journey: Adventure Log in the Study Deck area is the learning record for Daily Check-ins, weekly study and game progress, and approved English Juku reports; My Adventure in Karasuki is the adventure record for stars, completed adventures, curriculum progress, achievements, and the wider Booha Adventure journey.

Daily Check-ins are a short preparation routine for all students. They take about 3–4 minutes and review vocabulary, sentences, and questions from the current curriculum. Students can retake a check-in to practise; their profile records the first attempt and best result.

Three weekly checkpoints are open at the same time. Each weekly checkpoint opens two decks:

• Study Deck — vocabulary, sentences, speaking questions, and a hands-free listen-and-repeat stream, all with audio
• Game Deck — practice games that use the weekly English

In the Output Class, the games help connect home preparation to the lesson. English Juku uses the same weekly content for independent practice and demonstration, but games never affect a Juku result.

Pre-Boo

For students just starting or rebuilding their foundation. Students build basic vocabulary, short sentences, and the ability to answer familiar questions. Approximately EIKEN Grades 5–4.

Boo-riculum

The main intermediate curriculum. Students read longer, connected passages and learn to express their own opinions and reasons in English. Approximately EIKEN Grade 3 through Grade 2, including Pre-2 and Pre-2 Plus.

Boo-Continuum

For advanced communication. Students work with longer texts and abstract topics, and express opinions, reasons, and nuance more precisely. Approximately EIKEN Pre-1 through Grade 1.

How all three work

All curricula share the same structure: 12 themes per year, 4 weeks per month. The content changes, the structure stays the same. That consistency builds real habits.

Output Class

Preparation at home is required. Class time is for speaking, not copying vocabulary.

• Bring a device
• Bring an English notebook
• Write the weekly vocabulary at home before class
• Review the audio before arriving

Prepared students use class time for speaking, listening, and using English. Unprepared students struggle.

English Juku

• Bring a device
• Pre-Boo meets Saturday at 17:00; Boo-riculum meets Saturday at 19:00
• Review the week's Booha Adventure content before class
• No additional written notebook homework
• No trial or makeup lessons

Booha's three curricula are not EIKEN preparation courses. The EIKEN grades below are reference points that help families understand the approximate difficulty of the English.

Pre-Boo — Foundation

Approximately EIKEN Grades 5–4
Students build basic vocabulary, short sentences, and the ability to answer familiar questions.

Boo-riculum — Intermediate

Approximately EIKEN Grade 3 through Grade 2, including Pre-2 and Pre-2 Plus
Students read longer, connected passages and learn to express their own opinions and reasons in English.

Boo-Continuum — Advanced Communication

Approximately EIKEN Pre-1 through Grade 1
Students work with longer texts and abstract topics, and express opinions, reasons, and nuance more precisely.

EIKEN Grades and Japanese School Levels

EIKEN's published level descriptions relate the grades to Japanese school levels as follows:

• Grade 5 — around first-year junior high (junior-high beginner level)
• Grade 4 — around second-year junior high (junior-high intermediate level)
• Grade 3 — junior-high graduation level; EIKEN lists it as MEXT's benchmark for junior high school graduates
• Grade 2 — high-school graduation level; EIKEN lists it as MEXT's benchmark for high school graduates

Goals

• Write first and last name
• Write uppercase and lowercase ABC
• Answer basic questions clearly

Home practice — under 5 minutes

• Practice writing their name
• Practice writing the alphabet
• Listen to the question audio

Goals

• Learn the weekly vocabulary
• Use simple sentences in class
• Answer weekly questions
• Build confidence speaking
• Write a short diary entry

Homework — 5 to 10 minutes

• Write the weekly vocabulary (English + Japanese)
• Listen to the Study Deck audio
• Review the sentence cards
• Practice the questions out loud

Goals

• Understand and use weekly vocabulary
• Build longer answers
• Answer questions confidently
• Express opinions
• Maintain a diary

Homework — 10 to 12 minutes

• Write the weekly vocabulary (English + Japanese)
• Review sentence and question decks
• Practice answers out loud
• Keep a short diary (3 to 4 sentences)

Goals

• Build strong patterns they can actually use
• Develop a weekly speaking habit
• Support school English

Homework — 10 to 15 minutes

• Write the weekly vocabulary (English + Japanese)
• Review the Study Deck
• Say the weekly answers out loud
• Keep an English diary (4 to 5 sentences)

Goals

• Build stronger speaking patterns and opinion phrases
• Develop longer sentence control

Homework — 12 to 20 minutes

• Write weekly vocabulary (English + Japanese)
• Review sentences and questions out loud
• Keep an English diary (5 to 8 sentences including opinions)
• Use the Game Deck when possible

Common adult problems

• Not enough output. Students come unprepared and wait to be asked questions.
• Depending too much on Japanese logic.
• Vague answers. "So-so." "Nothing special."
• Almost no English outside of class.

Come anyway

Adults don't need talent. They need consistent weekly effort, curiosity, and a willingness to use English. Come prepared to talk. That one change makes the whole class different.