Integer War Teacher Guide
Integer War
Teacher Battle Plan
6TH GRADE MATH
Lesson: Multiplication of Integers
Learning Objective
Students will apply integer multiplication rules (Same Signs = Positive; Different Signs = Negative) to fact fluency challenges in a high-speed game environment.
Pacing
- Warm-up 5 min
- Video/Direct 10 min
- Integer War 30 min
- Closure 5 min
Instructional Sequence
1
Warm-up: Rapid Fire (5 min)
Conduct a choral response or white-board flash for positive-only multiplication facts (0-12). Goal: High energy, 100% accuracy before adding negatives.
2
Direct Instruction & Video (10 min)
Use the "Multiplication of Integers" video (URL provided in slides).
- [3:50] The Flip: Pause here. Ask: "The narrator says a negative multiplier means we need the 'opposite.' What will happen to these red counters?"
- [5:40] Pattern Spotting: After seeing -4 x -1, ask students to predict the "Same Sign" rule before the video states it.
- [10:39] Summary: Display the final summary screen for 2 minutes for note-taking.
3
Integer War (30 min)
Students play in pairs using standard decks or the "Clash Cards."
Key Misconception: Students often try to "add" integers during War. Remind them: "Red is Negative, Black is Positive. We are MULTIPLYING."
4
Closure & Exit (5 min)
Review the "Hardest Combinations" (usually Negative x Negative). Ask: "Why is a negative times a negative positive?" (Answer: The 'opposite' of a negative is positive).
Tournament Extension
Once students are confident, create a class bracket. Winners of 3-minute "speed rounds" advance. Finalists face off on the smartboard for the title of "Integer Master."
Differentiation & Support
For Struggling Learners
- The Rule Card: Provide the small reference cards (from the Instructions handout) on their desks.
- Color Coding: Have them use a green highlighter for positive cards and red for negative during the first few rounds.
For Advanced Learners
- Triple War: Flip 3 cards at once. Multiply the first two, then multiply the product by the third.
- The Inverse Challenge: If a student wins a pair, they must name a division fact using those same numbers before they can take the cards.
Common Misconceptions
Error 1: Negative + Negative = Positive?
Students often confuse addition rules with multiplication rules. Remedy: Always reference the "opposite" flip from the video. "If you have negative counters and multiply by a negative, they MUST flip to positive."
Error 2: Forgetting Zero
Students may get stuck on cards like J, Q, K if assigned 0. Remedy: Define face cards clearly (Ace=1, J=11, Q=12, K=13) or explicitly include Joker=0 for a challenge.
Quick Check Questions
Use these during the walk-around:
- "I see a red and a black card. Should the answer be positive or negative?"
- "Your product was positive. What does that tell you about the signs of the two cards?"
Integer War Presentation Slides
−
×
×
Integer War
Multiplication Fact Fluency Challenge
6th Grade Math
Warm-up: Rapid Fire
Shout out the answer as soon as the fact appears!
(Positive numbers only... for now!)
3 × 4
6 × 7
8 × 5
9 × 12
Ready to add the negative signs?
The Master Plan
Watch for the "Flip"
Embedded media
Key Moments
"A negative multiplier means get the OPPOSITE of our counters."
The Laws of Integers
Keep these in your head to win the war!
−
−
SAME SIGNS
POSITIVE
−
−
DIFFERENT SIGNS
NEGATIVE
Integer War Rules
1
Split the deck. Each player gets half.
2
Flip 1 card at the same time.
Black = (+)
Red = (–)
3
First to shout the correct product wins the pair!
Face Card Values
Ace 1
Jack 11
Queen 12
King 13
Final Boss Challenge
These are the facts that trip up even the pros.
Can you solve them instantly?
Red × Red
−7 × −8
Red × Black
−9 × 12
Reflect: Why is a negative times a negative a positive?
Integer War Instructions Handout
Integer War
Student Battle Manual
SOLDIER NAME:
DATE:
Same Signs
(+)
×
(+)
= POSITIVE
(–)
×
(–)
= POSITIVE
Different Signs
(+)
×
(–)
= NEGATIVE
(–)
×
(+)
= NEGATIVE
Your Mission: Integer War
How to Play:
- Split the deck evenly with your partner.
- Flip the top card of your pile at the same time.
- The Color Code:
BLACK = POSITIVE
RED = NEGATIVE
- The first person to shout the correct product wins both cards.
- The player with the most cards at the end of 20 minutes wins the war!
Ranks (Values)
Ace: 1
2-10: Face Value
Jack: 11
Queen: 12
King: 13
Joker: 0
The Battle Log
Record the three trickiest facts you encountered today. Show the product!
Fact 1
Fact 2
Fact 3
Post-Battle Reflection
What was your strategy for multiplying negative × negative instantly? Did you focus on the numbers first or the sign first?
