Year 8

Generalising arithmetic sequences through tracking calculations

Year 8

Generalising arithmetic sequences through tracking calculations

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Lesson details

Key learning points

  1. In this lesson, we will learn to use tracking calculations to generalise arithmetic sequences.

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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4 Questions

Q1.
In a six column grid, the columns give us sequences that contain the multiples of ___.
1
4
5
Correct answer: 6
Q2.
What are the first 5 terms in column a?
An image in a quiz
Correct answer: 5, 10, 15, 20, 25
5, 6, 7, 8, 9
5, 9, 13, 17, 21
Q3.
What are the first 5 terms in the number sequence in column b?
An image in a quiz
Correct answer: 8, 13, 18, 23, 28
8, 16, 24, 32, 40
8, 9, 10, 11, 12
Q4.
What are the tracking calculations for the five terms in column b?
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Correct answer: 5 x 1 + 3, 5 x 2 + 3, 5 x 3 + 3, 5 x 4 + 3, 5 x 5 + 3
5 x 1, 5 x 2, 5 x 3, 5 x 4, 5 x 5
8 x 1, 8 x 2, 8 x 3, 8 x 4, 8 x 5

3 Questions

Q1.
Look at the number grid shown on the right. Write down the column and row that match the tracking calculation 5 x 3 - 1
An image in a quiz
Row 1 Column C
Row 3 Column B
Correct answer: Row 3 Column C
Row 3 Column E
Q2.
Look at the same number grid. Pick the tracking calculation that matches column E row 25.
An image in a quiz
5 x 24 + 1
5 x 25
5 x 25 - 1
Correct answer: 5 x 25 + 1
Q3.
Look at the same number grid. Which column and row would 38 fall into?
Correct answer: Row 8 Column B
Row 8 Column C
Row 9 Column B
Row 9 Column C