What Are Input/Output Tables?
Input/output tables are like magic number machines!
Each input number goes in, the machine follows a special rule, and a different output number comes out.
Your job is to figure out what the secret rule is!
How to Find the Rule
1️⃣ Look at the input numbers and their matching outputs
2️⃣ Think about what math operation connects them
3️⃣ Test your rule to see if it works for all the numbers
Let's Practice!
Example 1: The Adding Machine
| Input | Output |
|---|---|
| 3 | 7 |
| 5 | 9 |
| 8 | 12 |
What's the rule? Try to figure it out before checking!
The rule is: Output = Input +
Example 2: The Doubling Machine
| Input | Output |
|---|---|
| 2 | 4 |
| 5 | 10 |
| 7 | 14 |
Can you discover the pattern this time?
The rule is: Output = Input ×
Parent Tips 🌟
- Make it real: Create input/output tables with household items (like counting forks and spoons) to show practical applications.
- Start simple: Begin with addition rules before moving to subtraction or multiplication.
- Play detective: Frame it as solving a mystery to make finding the rule more exciting!