Lesson details

Key learning points

  1. In this lesson, we will investigate the algebraic representations of odd and even numbers.

Licence

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5 Questions

Q1.
What is the final answer if I start with 4?
An image in a quiz
16
Correct answer: 25
36
49
Q2.
What is the final answer if I start with 6?
An image in a quiz
Correct answer: 25
36
49
64
Q3.
Will the answers to the puzzle above always be odd, even, or does it depend on the starting number?
Always even
Always odd
Correct answer: Depends on the starting number
Q4.
Start with 6. What is the final answer?
An image in a quiz
12
Correct answer: 5
7
8
Q5.
Will the answers to the puzzle above always be odd, even, or does it depend on the starting number?
Always even
Correct answer: Always odd
Depends on the starting number

5 Questions

Q1.
Is the value of 2n always odd, always even, or either?
Correct answer: Always Even
Always Odd
Could be either
Q2.
Is the value of 4n - 2 always odd, always even, or either?
Correct answer: Always Even
Always Odd
Could be either
Q3.
Is the value of 3n + 1 always odd, always even, or either?
Always Even
Always Odd
Correct answer: Could be either
Q4.
What operation could I perform to 4n + 1 to make it always even?
Correct answer: Add 1
Add 5
Divide it by 2
Multiply it by 3
Nothing - it already is even.
Q5.
What operation could I perform to n + 4 to make it always even?
Add 1
Divide it by 2
Multiply it by 3
Correct answer: Multiply it by 4
Nothing - it already is even.

Lesson appears in

UnitMaths / Algebra and problem solving