LO To start to describe sequences using algebra RAG Key Words; Term, Expression 25 Mar 2 022 Starter – Sequences bingo. Pick 9 numbers, no repeats
LO To start to describe sequences using algebra RAG Key Words; Term, Expression 3-Jul-15 Starter – Sequences bingo. Pick 9 numbers, no repeats.
Dec 22, 2015
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LO To start to describe sequences using algebra
RAG
Key Words; Term, Expression
19 Apr 2023
Starter – Sequences bingo. Pick 9 numbers, no repeatsStarter – Sequences bingo. Pick 9 numbers, no repeats
Sequence Bingo
Choose 9 Numbers and fill them into your 3x3 Grid.
+1 +2 +3 +4 +5
+6 +7 +8 +9 +10
-1 -2 -3 -4 -5
-6 -7 -8 -9 -10
What is the common difference?
3, 11, 19, 27
What is the common difference?
-3, -9, -15, -21
What is the common difference?
21, 18, 15, 12
What is the common difference?
5, 7, 9, 11
What is the common difference?
103, 93, 83, 73
What is the common difference?
23, 18, 13, 8
What is the common difference?
-2, 2, 6, 10
What is the Starting Number of the Sequence
? 9, 11, 13, 15
What is the common difference?
1, 7, 13, 19
What is the common difference?
65, 66, 67, 68
What is the common difference?
7, 10, 13, 16
What is the common difference?
-1, -2, -3, -4
What is the common difference?
12, 4, -4, -12
Finding the nth term of a linear sequence
The terms in this sequence
4, 7, 10, 13, 16, 19, 22, 25, …
+3 +3 +3 +3 +3 +3 +3
can be found by adding 3 each time.
Compare the terms in the sequence to the multiples of 3.
Position
Multiples of 3
1 2 3 4 5 n…
× 3 × 3 × 3 × 3 × 3 × 3
3n
Term 4 7 10 13 16 …
3 6 9 12 15
+ 1 + 1 + 1 + 1 + 1 + 13n + 1
Each term is one more than a multiple of 3.
What is the term to term rule?What is the nth term rule?
What would the 10th number in the sequence be?
For each sequence decide which of these tasks will challenge you:-
•Write down the next two numbers in the sequence
•Match the sequence to the term to term rule.
•Match the sequence to the 10th term.
•Match the sequence to the nth term rule.
•Use the nth term rule to find the 50th number in the sequence.
Plenary task
Choose one of these nth term rules and write down the first 5 terms of the sequence
on your mini whiteboard.
• 4n• 6n – 5• -2n + 6
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