Function Machine and Rules

In this math lesson, Tanya B introduces the concept of a function machine, where an input number is transformed into an output number based on an unknown rule. The lesson involves identifying this rule by examining a set of number pairs. The rule is hypothesized to be 'plus three' and is tested with multiple examples to confirm its validity. The lesson concludes with a summary of the findings.

What is the main objective of today's math lesson?

• To understand geometric shapes

• To learn about multiplication tables

• To solve complex algebraic equations

• To find an unknown rule that generates related number pairs

What does the function machine do with the input number?

• It transforms the input number to a different output number

• It divides the number by 3

• It subtracts 5 from the number

• It multiplies the number by 2

What is the purpose of the function machine in this lesson?

• To teach addition

• To create random numbers

• To solve equations

• To demonstrate how input numbers are transformed to output numbers

What is the first step in using the function machine?

• Guess the output

• Place a number in the input section

• Multiply the number by 2

• Write down the rule

What was the output when the number 2 was placed in the function machine?

• 6

• 4

• 7

• 5

What rule was initially suggested when the input was 2 and the output was 5?

• Divide by 2

• Multiply by 2

• Subtract 1

• Add 3

What is the significance of the number pairs in the lesson?

• They are used to test the function machine

• They are random numbers

• They are used to confuse students

• They are part of a different lesson

Why is it important to test the rule with at least three tries?

• To practice more math problems

• To confuse the students

• To ensure the rule is consistent and valid

• To make the lesson longer

What was the output when the input was 5 using the rule?

• 7

• 8

• 9

• 10

What was the output when the input was 7 using the rule?

• 9

• 10

• 11

• 12