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Unit 2 - Lesson 3: Simple Addition and Using the Plus Sign (+)

Interactive lesson with 5 learning stations and smart audio player - Unit 2 - Lesson 3: Simple Addition and Using the Plus Sign (+)

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

Putting Groups Together with the Magic Plus Sign (+) ➕🎈

Click any sentence to listen 👆

Hello young mathematicians! Addition means putting two or more groups of things together to find out how many we have in total! If you have 3 red balloons and your friend gives you 2 blue balloons, how many balloons do you have altogether? Let us count them: 1, 2, 3, 4, 5! We use the plus sign (+) to show joining, and the equal sign (=) to show the final answer.

➕ What is Addition?

• Addition: Combining sets to find the total sum.
• Plus Sign (+): Reads 'plus' or 'and'.
• Equal Sign (=): Reads 'is equal to' or 'makes'.
• Example: 4 apples 🍎🍎🍎🍎 + 2 apples 🍎🍎 = 6 apples 🍎🍎🍎🍎🍎🍎!

🚀 Counting On Strategy

To solve 6 + 3: put the larger number (6) in your head, hold up 3 fingers, and count on: 7, 8, 9! The answer is 9! This strategy makes adding fast and fun!

🧩 Fast Addition Challenge
2 + 3 = 5
Stars ⭐
5 + 5 = 10
Two Hands 🖐️🖐️
10 + 4 = 14
Ten and Four 🍎

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

Addition (+)
Tap to reveal definition 👆
The mathematical operation of combining sets
📖 Def: Joining together
Plus Sign (+)
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The symbol used to show addition
📖 Def: Addition symbol
Equal Sign (=)
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The symbol showing that values on both sides match
📖 Def: Equivalence symbol
Sum / Total
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The result obtained by adding numbers together
📖 Def: Final count
Counting On
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Starting at the larger number and counting upwards
📖 Def: Mental math strategy
Partners of 10
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Pairs of numbers that add up to 10
📖 Def: 5+5, 6+4, 7+3...
Addend
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A number that is added to another number
📖 Def: Parts of an addition
Adding Zero
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Adding zero leaves the number unchanged
📖 Def: 5 + 0 = 5
Doubles
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Adding a number to itself
📖 Def: 2+2=4, 3+3=6, 4+4=8
Visual Modeling
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Using pictures or counters to demonstrate addition
📖 Def: Visual aids
Vertical Addition
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Writing numbers one above another to add
📖 Def: Column format
Horizontal Addition
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Writing the equation across a line
📖 Def: 4 + 3 = 7

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

1 What is 4 + 3?
2 Sara has 6 pencils and buys 2 more. How many pencils does she have now?
3 What is 5 + 0?
4 Which pair of numbers adds up to make 10?
5 What is 10 + 6?
6 Which math symbol represents addition?
7 What is the double of 3 (3 + 3)?
8 There are 5 birds on a fence, and 4 more join them. How many birds are there now?
🎉 Congratulations! You have completed all lesson stations successfully!

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