New
New
Year 1

Tetrominoes and pentominoes

I can explore, discuss and compare tetrominoes and pentominoes.

New
New
Year 1

Tetrominoes and pentominoes

I can explore, discuss and compare tetrominoes and pentominoes.

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Lesson details

Key learning points

  1. Four connected squares make a tetromino, and five connected squares make a pentomino.
  2. The five possible tetrominoes can be explored, discussed and compared.
  3. The 12 possible pentominoes can be explored, discussed and compared.
  4. Tetrominoes and pentominoes can be rotated and flipped.
  5. A particular tetromino or pentomino can be transformed into another by moving some of the squares.

Common misconception

Might not recognise that the arrangement is still the same when it has been rotated or flipped.

Allow plenty of opportunity to explore practically and model rotating, flipping and comparing arrangements.

Keywords

  • Arrangement - The way something is organised.

  • Tetromino - An arrangement of four connected squares.

  • Pentomino - An arrangement of four connected squares.

  • Rotate - To spin around.

  • Flip - To reflect in a mirror line.

Provide opportunities for children to use different types of square-shapes (for example sticky notes, pattern blocks etc.) to explore tetromino and pentomino arrangements. Have cutouts of arrangements for children to explore rotating and flipping.
Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Video

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6 Questions

Q1.
How many cars are there altogether?
An image in a quiz
3
Correct answer: 4
5
Q2.
Which image represents 4?
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz
Q3.
True or false? This pattern block has been rotated.
An image in a quiz
True
Correct answer: False
Q4.
Which image shows that this pattern block has been flipped?
An image in a quiz
Correct answer: A
B
C
Q5.
Which images represent 5?
An image in a quiz
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
Q6.
Which pattern blocks are connected?
A
Correct answer: B
C

6 Questions

Q1.
Which image is a tetromino?
A
B
Correct answer: C
Q2.
How many different tetromino arrangements are there?
3
4
Correct answer: 5
Q3.
Which image is a pentomino?
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz
Q4.
How many different pentomino arrangements are there?
10
11
Correct answer: 12
Q5.
Which two images show the same tetromino arrangement?
A
Correct answer: B
C
Correct answer: D
Q6.
Which two images show the same pentomino arrangement?
Correct answer: A
B
C
Correct answer: D

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