Break Apart Arrays Packet
Math Helpers • Grade 4 Support
Break Apart Arrays! 🧩
Name:
Date:
➡️
Row
Goes across like a line
⬇️
Column
Goes up and down
↔️
Break Apart
Split into 2 friendly parts
★
The Big Math Secret: Split Big Groups!
When a big group is hard to count, we can SPLIT IT ✏️ with a divider line into two friendly parts. The total stays the exact same!
One Big Array (2 rows of 5)
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Total = 10 dots
✏️ Split! ➡️
2 Friendly Smaller Parts
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Part 1: 6
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Part 2: 4
6 + 4 = 10 dots!
Warm-Up Step: Count & Touch the Dots With Teacher
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2
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5
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7
8
How many rows?
How many in each row?
Total counted:
Page 1 • Visual Guided Notes Keep One Side Length the Same! 📏
Part 1 • Hands-On Practice
Draw a Divider Line ✏️
Trace the line and count the parts!
1
This array has 2 rows of 6. Draw a divider line down the middle to make two equal parts!
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2
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4
5
6
✏️
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2
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4
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6
Blue part has:
Yellow part has:
Whole group together:
2
Look at the split array below. Fill in the numbers in the friendly addition sentence!
Part A
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Part B
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Number Sentence:
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Hint: Count each colored box!
3
Which picture shows breaking 5 into 3 and 2?
A
(3 + 2)
B
(4 + 3)
Page 2 • Hands-On Practice Color Coding Helps Us See the Parts! 🎨
Part 2 • Friendly Number Strategies
The Cookie Tray Challenge 🍪
Grade 4 Story • 1st Grade Friendly!
🍪
Baker Amir's Cookie Tray
Amir baked a tray with 2 rows of 7 cookies. 7 is tricky to count! So Amir split the tray into 5 cookies and 2 cookies.
Friendly 5s Tray
🍪 🍪 🍪 🍪 🍪 🍪 🍪 🍪 🍪 🍪
5 + 5 = 10 cookies
➕
Remaining 2s Tray
🍪 🍪 🍪 🍪
2 + 2 = 4 cookies
A How many cookies are in the first blue tray?
B How many cookies are in the second yellow tray?
C Add the two trays together to find all the cookies!
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★ You Be The Baker!
Draw a divider line to split this 2 × 4 array in half!
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Left part has:
Right part has:
Total:
Page 3 • Friendly Number Strategies Breaking Into 5s and 2s Makes Math Friendly! ⭐
Exit Ticket • Show What You Know
My Array Check-In ⭐
Name:
1
These two smaller arrays are put together to make one big array. Count each part!
Part 1
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Part 2
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Fill in the blanks:
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Both parts share 2 rows!
2
Look at this big array divided by the dark line. Which parts does it show?
A
9 dots + 6 dots = 15 dots
B
2 dots + 2 dots = 4 dots
How do you feel about breaking apart arrays today?
😃 I got this! I can split arrays.
🙂 Getting there! Need some helper tiles.
🤔 Need help! Let's practice again.
Page 4 • Exit Ticket & Self-Reflection Awesome Math Work Today! 🌟
