Lesson 2. How Hangul Works: Consonants Draw Your Mouth, Vowels Draw the Universe

Chapter 1. Hangul Mastery · Week 1 · Prerequisites: Lesson 1 · Est. time: ~30 min (review included)

Learning Objectives

• Understand the founding principle that Hangul letters are drawings of sounds
• Know that consonants depict the speech organs
• Know that vowels combine sky, earth, and human
• Understand syllable-block writing (moa-sseugi)

Warm-up Review

• From the Lesson 1 learning contract: which phrase do we memorize as a chunk first? (→ 주세요)
• 안녕하세요 = ? / 감사합니다 = ? (Just the meanings! Hello / Thank you)

Main Lesson

1. Hangul was invented — on purpose

In 1443, King Sejong scientifically designed this alphabet for ordinary people. That's why the rules are remarkably simple.

Two key concepts:

Concept	Meaning	English
음소 문자	one letter = one sound	Phonemic alphabet: one letter = one sound
모아쓰기	letters gather into syllable-sized blocks	Syllable blocks: letters stack into square blocks

2. Consonants are pictures of your mouth

Each basic consonant is a drawing of your tongue, lips, or throat as you make that sound.

Consonant	Sound	What it draws
ㄱ	g/k	the root of the tongue blocking the throat
ㄴ	n	the tip of the tongue touching the upper gums
ㅁ	m	closed lips (it literally looks like a mouth!)
ㅅ	s	the shape of a tooth
ㅇ	(silent)/ng	the round throat

The other consonants are made by adding strokes to these five basic shapes — stronger sound = more strokes: ㄱ→ㅋ, ㄴ→ㄷ→ㅌ, ㅁ→ㅂ→ㅍ. You'll learn all 14 in Lesson 4.

3. Vowels combine sky, earth, human

Vowels are built from just 3 parts:

Part	Symbolism	English
ㆍ (dot → short stroke)	sky (천)	Sky — a dot, now written as a short stroke
ㅡ	earth (지)	Earth — the flat horizon
ㅣ	human (인)	Human — a standing person

Combination examples:

• ㅣ + ㆍ(on the right) = ㅏ (a)
• ㆍ(on top) + ㅡ = ㅗ (o)
• One dot makes a plain vowel; two dots make a y-vowel: ㅏ(a) → ㅑ(ya), ㅗ(o) → ㅛ(yo). One stroke = plain vowel; two strokes = y-vowel.

4. Syllable blocks: stacking

Korean letters don't just line up left to right like the Latin alphabet — they stack into one square block per syllable.

ㄱ + ㅏ = 가 (g + a = "ga") ㅁ + ㅏ = 마 (m + a = "ma") ㅁ + ㅏ + ㄴ = 만 (m + a + n = "man")

Compare with English: "han-gul" takes six letters strung side by side in English, but in Hangul it's just two neat blocks: 한·글.

Common Misconception

"Hangul is like Chinese characters — each symbol carries a meaning." No! Hangul is a pure alphabet that records only sounds. It merely looks like Chinese characters because of the block shape.

Principle Demo

Combination	Result	Pronunciation
ㄱ + ㅏ	가	ga
ㅁ + ㅏ	마	ma
ㄴ + ㅏ	나	na
ㅅ + ㅏ	사	sa

Practice

1. What does the consonant ㅁ depict?
2. Name the three vowel building blocks (sky, earth, human).
3. ㄴ + ㅏ = ? (What block do they form?)
4. Which of the following describes syllable-block writing?
   • (a) Letters are only lined up side by side
   • (b) Each syllable is gathered into a single block

Mission

Guess your name in Hangul — You haven't formally learned this yet, but using today's principle (consonant + vowel blocks), guess how your name might be written in Hangul and write it down. You'll be able to check your answer yourself after Lesson 5!

Coming Up Next

Lesson 3: We'll pronounce all 12 basic vowels — from ㅏㅑㅓㅕ through the essential ㅐ/ㅔ.

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Show Answer Key

1. The shape of closed lips (a mouth).
2. ㆍ sky, ㅡ earth, ㅣ human.
3. 나 (na)
4. (b) — each syllable is gathered into a single block.