القائمة الرئيسية

Unit 2 - Lesson 1: Numbers 11 to 15 and the Group of Ten

Interactive lesson with 5 learning stations and smart audio player - Unit 2 - Lesson 1: Numbers 11 to 15 and the Group of Ten

27 مشاهدة آخر تحديث: 18 أكتوبر 2026
Station 1 of 5 Spark & Prepare: Goals & Discovery
KG2 - Math Unit 2: Numbers to 20, Simple Addition & Measurement

Discovering Teen Numbers: 11 to 15 with Ten-Frames! 🔟✨

Click any sentence to listen 👆

Welcome back, brilliant young mathematicians! Today, we explore a wonderful new number family: the teen numbers! When we have a full ten-frame with 10 stars and add 1 more star, we make eleven (11)! With two more stars, we make twelve (12)! Let us count, build, and discover numbers up to 15 together with fun visual games!

🌟 Building Numbers 11 to 15

Every teen number is made of one full group of 10 plus extra ones:

  • ⭐ 11 (Eleven): 10 + 1 (one ten and one one)
  • ⭐ 12 (Twelve): 10 + 2 (one ten and two ones)
  • ⭐ 13 (Thirteen): 10 + 3 (one ten and three ones)
  • ⭐ 14 (Fourteen): 10 + 4 (one ten and four ones)
  • ⭐ 15 (Fifteen): 10 + 5 (one ten and five ones)

🎯 Using the Ten-Frame

A ten-frame is a grid of 10 boxes. When it is completely full, we know it is 10 instantly! To show 14, we fill one full ten-frame and place 4 counters in a second frame. This gives us visual fluency!

🧩 Interactive Ten-Frame Practice
🔟 + 🟢
10 + 1
11 (Eleven)
🔟 + 🟢🟢🟢
10 + 3
13 (Thirteen)
🔟 + 🖐️
10 + 5
15 (Fifteen)

Tap any card to reveal its meaning, or tap the audio icon to listen:

Eleven (11)
Tap to reveal definition 👆
The number after 10; one ten and one
📖 Def: 10 + 1
Twelve (12)
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The number after 11; one ten and two
📖 Def: 10 + 2
Thirteen (13)
Tap to reveal definition 👆
The number after 12; one ten and three
📖 Def: 10 + 3
Fourteen (14)
Tap to reveal definition 👆
The number after 13; one ten and four
📖 Def: 10 + 4
Fifteen (15)
Tap to reveal definition 👆
The number after 14; one ten and five
📖 Def: 10 + 5
Ten (10)
Tap to reveal definition 👆
A complete base group of ten units
📖 Def: Base unit
Ones
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Single units from 0 to 9
📖 Def: Rightmost place value
Tens
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Groups of ten units
📖 Def: Second place value
Ten-Frame
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A rectangular grid with 10 squares
📖 Def: Visual math tool
Counting Forward
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Counting upwards in order: 10, 11, 12...
📖 Def: Increasing order
Next Number
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The number immediately following another
📖 Def: Number + 1
Previous Number
Tap to reveal definition 👆
The number immediately before another
📖 Def: Number - 1

Click on an option to check your answer and view the detailed explanation:

1 What number do we get when we add 1 to 10?
2 How many ones are there in the number 14?
3 Which number comes directly after 12?
4 If you have one full ten-frame and 5 extra dots, what is the total?
5 Which number comes right before 15?
6 Which number lies between 11 and 13?
7 What is the sum of 10 + 3?
8 How do we write the number word 'fourteen' in numerals?
🎉 Congratulations! You have completed all lesson stations successfully!

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