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Vietnamese Numbers 20–100

Eighth graders count by tens in Vietnamese (số) — hai mươi (20), ba mươi (30), bốn mươi (40), năm mươi (50), sáu mươi (60)… up to một trăm (100). The tens are just “digit + mươi” — a tidy pattern!

Grade 8Numbers 20-10050 minutes1 class periodACTFL / World LanguagesExplicit teaching4 StandardsACTFL
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Lesson at a Glance

Everything you need before the bell rings

Learning Objectives

Students will be able to…

  • ✓Count by tens.
  • ✓Order the numbers.
  • ✓Say prices & ages.
  • ✓Count to 100.
Essential Question

hai mươi, ba mươi, bốn mươi… how do you count by tens in Vietnamese?

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Lesson Phases
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Vocabulary Terms
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Standards Aligned
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Interactive Task
Put in Order · Interactive

Order the Tens (20–60)

Project this and have students put the Vietnamese tens in order from hai mươi to sáu mươi.

🔢 Put the tens in order — 20 to 60!Try it
Tap “hai mươi” (20) first!
The Lesson · Language Flow (Warm-Up · Present · Practice · Speak · Reflect)

50 minutes, five moves

Tap any phase to open the teacher moves and student actions.

1

Warm-Up — Counting Higher

6 min

How do you count by tens in Vietnamese?

👩‍🏫 Teacher Moves

  • Count 1–20 quickly.
  • Ask what comes after hai mươi.
  • Set the goal.

🎒 Student Actions

  • Count.
  • Guess.
  • Get ready.
2

Present — Numbers 20–100

12 min

Students learn.

👩‍🏫 Teacher Moves

  • Model hai mươi to một trăm.
  • Note digit + mươi.
  • Send students to Order the Tens.

🎒 Student Actions

  • Watch.
  • Note it.
  • Order.
3

Practice — Practice

13 min

Students practice.

👩‍🏫 Teacher Moves

  • Count by tens.
  • Say a price.
  • Say your age.

🎒 Student Actions

  • Count.
  • Say.
  • Say it.
4

Speak — Speak

13 min

Students speak.

👩‍🏫 Teacher Moves

  • Say “tôi mười ba tuổi” (I’m 13).
  • Say a big number.
  • Ask a partner.

🎒 Student Actions

  • Say it.
  • Say.
  • Ask.
5

Reflect — Reflect

6 min

Students close.

👩‍🏫 Teacher Moves

  • Say a ten.
  • Count to 100.
  • Complete the exit ticket.

🎒 Student Actions

  • Say one.
  • Count.
  • Complete the exit ticket.
Standards Alignment

Built to the standards you report on

Aligned to the ACTFL World-Readiness Standards for Learning Languages (Novice-High).

ACTFL
Communication 1.2

Interpretive: understand numbers.

ACTFL
Communication 1.3

Presentational: count aloud.

ACTFL
Connections 3.1

Connect to math / prices.

ACTFL
Communication 1.1

Interpersonal: say ages & prices.

Differentiation

One lesson, every learner

Multilingual Learners

ELL / EMERGING READERS
  • Number cards by tens.
  • Use a number chart.
  • Repeat aloud.

Support & Access

IEP / 504
  • Start with 20–40.
  • Order two at a time.
  • Use a chart.

Stretch & Extend

GIFTED / EARLY FINISHERS
  • Say numbers like 25, 42.
  • Say prices in đồng.
  • Add & subtract tens.
Materials

What to gather

  • 📽️Screen / board
  • 🔢Number cards (tens)
  • 💻Order the Tens
  • 📊Hundreds chart
  • 📓Notebooks
  • 🎫Exit-ticket slips
Vocabulary

Key terms — hover for a quick definition

số (soh)numbershai mươitwentyba mươithirtybốn mươifortynăm mươififtysáu mươisixtybảy mươiseventymột trămone hundred
Evaluate

Exit Ticket

Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.

QUESTION 1
How do you say “thirty” in Vietnamese?
ba mươi.
QUESTION 2
What number is năm mươi?
Fifty.
QUESTION 3
What comes after bốn mươi?
năm mươi (fifty).

Reflect: numbers 20–100.

Have students count by tens to 100 in Vietnamese. A printable Vietnamese numbers sheet is in the World Languages library.

Study · Flashcards

Study the key terms

Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.

🃏 Vietnamese Numbers 20-100Flip
Card 1
Term
Tap to flip →
Meaning
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Nice work!

Practice · Quiz

Check your understanding

A quick self-check with instant feedback, drawn from this lesson’s key terms.

📝 Vietnamese Numbers 20-100Quiz
Score: 0
1 / 6
Question 1
0%

Nice work!

Practice · Worksheet

Printable worksheet

A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.

🖨️ Vietnamese Numbers 20-100Print
Name: ________________________
Date: ____________

Part A · Write the word that matches each meaning

Word bank: ba mươi, bảy mươi, bốn mươi, hai mươi, một trăm, năm mươi, sáu mươi, số (soh)
  1. forty
  2. sixty
  3. seventy
  4. fifty
  5. one hundred
  6. thirty
  7. twenty
  8. numbers

Part B · Show what you learned

  1. How do you say “thirty” in Vietnamese?
  2. What number is năm mươi?
  3. What comes after bốn mươi?
Answer key — Part A: 1) bốn mươi · 2) sáu mươi · 3) bảy mươi · 4) năm mươi · 5) một trăm · 6) ba mươi · 7) hai mươi · 8) số (soh)
Part B: 1) ba mươi. 2) Fifty. 3) năm mươi (fifty).