Lesson Plan
Rounding Spooktacular Lesson Plan
Students will learn to round whole numbers to the nearest ten and hundred through festive, Halloween-themed examples and a hands-on rounding game.
Rounding is a foundational skill for estimation and real-world math. This lesson’s engaging theme boosts student confidence and fluency, making practice memorable.
Audience
5th Grade
Time
30 minutes
Approach
Teach rules, practice with worksheet, then play a rounding game.
Prep
Teacher Preparation
10 minutes
- Print enough copies of Spooky Rounding Worksheet for each student.
- Print and cut out Monster Rounding Cards.
- Set up Haunted House Rounding Game Board on a table.
- Preview the Rounding Review Slide Deck and queue projector.
- Keep the Answer Key for Spooky Rounding Worksheet handy for reference.
Step 1
Introduction to Rounding
5 minutes
- Project the Rounding Review Slide Deck.
- Explain rounding rules: digits 0–4 round down, 5–9 round up.
- Show Halloween examples (e.g., rounding spooky candy counts) to nearest ten and hundred.
Step 2
Guided Practice
10 minutes
- Distribute Spooky Rounding Worksheet.
- Complete the first 2–3 problems together, modeling think-aloud.
- Students work with a partner on remaining problems; teacher circulates to support.
Step 3
Rounding Spooktacular Game
10 minutes
- Form groups of 3–4; give each group a Haunted House Rounding Game Board and Monster Rounding Cards.
- On their turn, a student draws a card, rounds its number to the nearest ten or hundred, and states their answer.
- Correct answers let players move their token closer to the haunted house; first group to reach it wins.
Step 4
Wrap-Up and Assessment
5 minutes
- Ask 2–3 volunteers to explain how they decided to round a number.
- Distribute a quick exit ticket: one number to round to the nearest ten and one to the nearest hundred.
- Collect exit tickets. Use the Answer Key for Spooky Rounding Worksheet to review any common errors next session.
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Slide Deck
Welcome to Rounding Spooktacular!
• Get your broomsticks ready – we’re rounding numbers tonight!
• Today’s goals:
– Round to the nearest ten
– Round to the nearest hundred
Welcome students! Play some light spooky music as you display this slide. Introduce today’s Halloween rounding adventure.
Rounding to the Nearest Ten
Rule: Look at the ones digit:
• If it’s 0–4 → round down
• If it’s 5–9 → round up
Example:
• 43 spooky bats → ones digit 3 → round down → 40 bats
Explain the rule for rounding to the nearest ten. Point to the ones digit in each example and use the pumpkin graphic on the slide.
Practice: Nearest Ten
Round each Halloween count to the nearest ten:
- 57 candy corns
- 62 ghost stickers
- 74 haunted house visits
Call on volunteers to answer each problem. Encourage students to think “down or up?”
Rounding to the Nearest Hundred
Rule: Look at the tens digit:
• If it’s 0–4 → round down
• If it’s 5–9 → round up
Example:
• 147 trick‐or‐treaters → tens digit 4 → round down → 100
Now transition to rounding to the hundred. Highlight the tens digit in your example graphic.
Practice: Nearest Hundred
Round each spooky number to the nearest hundred:
- 238 jack‐o’‐lanterns
- 375 spider webs
- 449 bats
Have students work with a partner to solve, then share answers as a class.
Let’s Get Spooky and Round!
Grab your Monster Rounding Cards and Haunted House Game Board –
it’s time for the Rounding Spooktacular Game!
Use this slide to transition into the group game. Remind students of materials: game board, cards, and tokens.
Worksheet
Spooky Rounding Worksheet
Get your pumpkins and broomsticks ready! Practice rounding spooky numbers below. Show all your work and round carefully.
Part 1: Rounding to the Nearest Ten
Round each number to the nearest ten. Write your answer and show any quick notes if needed.
- 57 candy corns → ________
- 63 ghost stickers → ________
- 28 haunted bats → ________
- 94 witch hats → ________
- 15 black cats → ________
- 79 jack-o’-lanterns → ________
Part 2: Rounding to the Nearest Hundred
Round each spooky number to the nearest hundred. Write your answer and any notes below.
- 142 trick-or-treaters → ________
- 367 spider webs → ________
- 219 haunted house visits → ________
- 480 costume prizes → ________
- 555 scary stories told → ________
- 702 pumpkin pies served → ________
Part 3: Mix-It-Up Rounding Challenge
For each number, round to the place value shown in parentheses.
- 88 zombie zombies (nearest ten) → ________
- 315 mummy masks (nearest hundred) → ________
- 49 bubbling cauldrons (nearest ten) → ________
- 624 broomsticks (nearest hundred) → ________
Part 4: Explain Your Thinking
In your own words, describe the rule for rounding a number to the nearest ten. Use a Halloween-themed example in your explanation.
Good luck, and may your rounding be delightfully spooky! 👻🎃👻
Answer Key
Answer Key for Spooky Rounding Worksheet
Part 1: Rounding to the Nearest Ten
-
57 candy corns → 60
- Ones digit is 7 (5–9 → round up)
- Tens digit 5 → 5 + 1 = 6 → 60
-
63 ghost stickers → 60
- Ones digit is 3 (0–4 → round down)
- Tens digit remains 6 → 60
-
28 haunted bats → 30
- Ones digit is 8 (5–9 → round up)
- Tens digit 2 → 2 + 1 = 3 → 30
-
94 witch hats → 90
- Ones digit is 4 (0–4 → round down)
- Tens digit remains 9 → 90
-
15 black cats → 20
- Ones digit is 5 (5–9 → round up)
- Tens digit 1 → 1 + 1 = 2 → 20
-
79 jack-o’-lanterns → 80
- Ones digit is 9 (5–9 → round up)
- Tens digit 7 → 7 + 1 = 8 → 80
Part 2: Rounding to the Nearest Hundred
-
142 trick-or-treaters → 100
- Tens digit is 4 (0–4 → round down)
- Hundreds digit remains 1 → 100
-
367 spider webs → 400
- Tens digit is 6 (5–9 → round up)
- Hundreds digit 3 → 3 + 1 = 4 → 400
-
219 haunted house visits → 200
- Tens digit is 1 (0–4 → round down)
- Hundreds digit remains 2 → 200
-
480 costume prizes → 500
- Tens digit is 8 (5–9 → round up)
- Hundreds digit 4 → 4 + 1 = 5 → 500
-
555 scary stories told → 600
- Tens digit is 5 (5–9 → round up)
- Hundreds digit 5 → 5 + 1 = 6 → 600
-
702 pumpkin pies served → 700
- Tens digit is 0 (0–4 → round down)
- Hundreds digit remains 7 → 700
Part 3: Mix-It-Up Rounding Challenge
-
88 zombie zombies (nearest ten) → 90
- Ones digit 8 → round up → tens 8 + 1 = 9 → 90
-
315 mummy masks (nearest hundred) → 300
- Tens digit 1 → round down → hundreds remain 3 → 300
-
49 bubbling cauldrons (nearest ten) → 50
- Ones digit 9 → round up → tens 4 + 1 = 5 → 50
-
624 broomsticks (nearest hundred) → 600
- Tens digit 2 → round down → hundreds remain 6 → 600
Part 4: Explain Your Thinking
A sample explanation for rounding to the nearest ten:
"To round a number to the nearest ten, look at the ones digit:
- If it’s 0–4, round down (keep the tens digit the same and change the ones digit to 0).
- If it’s 5–9, round up (add 1 to the tens digit and change the ones digit to 0).
For example, if I have 47 witch hats, the ones digit is 7, so I round up:
47 → 50."
Game
Haunted House Rounding Game Board and Monster Cards
Get ready to guide your tokens from the foggy graveyard to the spooky haunted house by rounding numbers correctly! This one-board, one-deck game sharpens rounding skills while building excitement.
Game Board Layout
Haunted House Rounding Game Board is a linear track of 12 spaces:
Start → 1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 → 9 → 10 → 🎃 Haunted House 🎃
Each space features a little monster graphic. The first group to move their token onto the 🎃 Haunted House 🎃 space wins!
Monster Rounding Cards
There are 16 Monster Cards. On your turn, draw one at random and round the number to the indicated place value:
• 57 candy corns (nearest ten)
• 63 ghost stickers (nearest ten)
• 28 haunted bats (nearest ten)
• 94 witch hats (nearest ten)
• 15 black cats (nearest ten)
• 79 jack-o’-lanterns (nearest ten)
• 142 trick-or-treaters (nearest hundred)
• 367 spider webs (nearest hundred)
• 219 haunted house visits (nearest hundred)
• 480 costume prizes (nearest hundred)
• 555 scary stories told (nearest hundred)
• 702 pumpkin pies served (nearest hundred)
• 88 zombie zombies (nearest ten)
• 315 mummy masks (nearest hundred)
• 49 bubbling cauldrons (nearest ten)
• 624 broomsticks (nearest hundred)
How to Play
- Split into groups of 3–4. Place one token at Start per group.
- Shuffle the Monster Cards and place face down.
- On your turn:
- Draw a card and read the spooky number.
- Round it aloud to the specified place value.
- If correct, move your token forward one space.
- If incorrect, keep your token where it is and return the card to the bottom of the deck.
- Pass the deck to the next player. Continue until a group reaches the 🎃 Haunted House 🎃.
Have fun, and may your rounding be spooktacular!