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Starter
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Matchstick Sequences
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Nth Term WALT: To be able to generate the nth term from a linear sequence. WILF: Work confidently with differences and negative numbers. Keywords Sequence Nth term Linear Difference
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Sequences
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Mark your answers!
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Mark your answers! What is happening?
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Mark your answers! Complete the rest of the sheet by calculating the nth term from the sequence.
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Mark your answers!
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Learning Check Find the nth term : 5, 11, 17, 23, 29
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Learning Check Find the nth term : 4, 1, -2, -5, -8
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Questions Find the nth term: 1, 4, 7, 10, 13 10, 14, 18, 22, 26
2, 1, 0, -1, -2 12, 14, 16, 18, 20 -3, 2, 7, 12, 17 8, 14, 20, 26, 32 6, 2, -2, -6, -10 7, 1, -5, -11, -17 Find missing terms then the nth term: 3, 6, 9, 12, __, __, 21 6, 11, 16, 21, __, __, 36 51, 48, 45, 42, __, __, 33 40, 34, 28, 22, __, __, 4 9, 17, 25, 33, __, __,57 7, 18, 29, 40, __, __, 73 __, __, 41, 36, 31, 26, 21 25, 31, 37, 43, __, __, 61
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Which sequences include the number 24…
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Answers Mark in green pen! Find the nth term: 3n - 2 4n + 6 3 - n
Find missing terms then the nth term: 3, 6, 9, 12, 15, 18, n 6, 11, 16, 21, 26, 31, n+1 51, 48, 45, 42, 39, 36, n +54 40, 34, 28, 22, 16, 10, n +46 9, 17, 25, 33, 41, 49, n + 1 7, 18, 29, 40, 51, 62, n - 4 51, 46, 41, 36, 31, 26, n + 56 25, 31, 37, 43, 49, 55, n +19
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Nth term BINGO!!!
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Plenary Exam Question Practice
a) Write down the 10th term of the sequence which begins 3, 7, , , Write down an expression for the nth term of this sequence. c) Show that 1997 cannot be a term in this sequence.
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Plenary Exam Question Practice
a) Write down the 10th term of the sequence which begins 3, 7, , , 19 Write down an expression for the nth term of this sequence. n – c) Show that 1997 cannot be a term in this sequence. 4n – 1 = 1997 4n = and 1998 isn't divisible by 4
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