New
New
Year 8

Formalising a sequence

I can appreciate that a sequence is a succession of terms usually formed according to a rule.

New
New
Year 8

Formalising a sequence

I can appreciate that a sequence is a succession of terms usually formed according to a rule.

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Lesson details

Key learning points

  1. A pattern of objects can be made by following a rule.
  2. These rules can be described in words.
  3. The number of objects each time is the term.
  4. Missing terms in the sequence can be found using the rule.

Keywords

  • Term - Each value or pattern in a sequence is called a term.

Common misconception

Pupils can mix up describing how patterns grow or the relationships between objects in the pattern.

Pupils should verbalise their description, using the keyword 'term' , making it clear which way they are describing their pattern.

Pupils could draw the patterns on square paper to predict how they might develop. This is a chance to explore the different structures of sequences.
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).

Lesson video

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6 Questions

Q1.
Here are the first and second pattern in a pictorial sequence. Which is the third pattern if the sequence had a constant additive relationship?
An image in a quiz
An image in a quiz
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
Q2.
Which word best completes this description of a sequence: 'A sequence is a succession of diagrams, objects or __________, usually formed according to a rule.
calculations
coordinates
integers
operations
Correct answer: values
Q3.
What would be the next value in this sequence if it has a constant additive rule? 18, 6, ...
Correct Answer: -6
Q4.
What would be the next value in this sequence if it has a constant multiplicative rule? 18, 6, ...
Correct Answer: 2
Q5.
Calculate the perimeter of this rectangle
An image in a quiz
Correct Answer: 14 mm, 14, 14mm
Q6.
Calculate the perimeter of this L shape
An image in a quiz
Correct Answer: 16 cm, 16, 16cm

6 Questions

Q1.
What do we call each value or pattern in a sequence?
a constant
an element
an expression
an object
Correct answer: a term
Q2.
Here is the beginning of a pictorial sequence with a constant additive rule. Which picture is term 5?
An image in a quiz
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz
Q3.
Here is a sequence of connected 'N' shape patterns made out of dots. How many dots would there be in term 4 of this pattern?
An image in a quiz
Correct Answer: 28
Q4.
Here is a sequence of connected 'N' shape patterns made out of dots. Which of these could be a rule for the number of dots in each term?
An image in a quiz
The number of dots increase by 4 each time
Correct answer: The number of dots increases by 6 each time
There are 6 dots per N shape
Correct answer: There are 6 dots per N shape add 4
There are 10 dots per N shape
Q5.
Here is a sequence of connected 'N' shape patterns made out of dots. How many dots would be needed for the 10th term?
An image in a quiz
Correct Answer: 64
Q6.
For this pictorial sequence, match up the rule with the element of the pattern it is describing
An image in a quiz
Correct Answer:increase by 1 each time,vertical lines

vertical lines

Correct Answer:increase by 2 each time,height of the pattern in squares.

height of the pattern in squares.

Correct Answer:increase by 4 each time,diagonal lines

diagonal lines

Correct Answer:increase by 5 each time,total lines

total lines