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Achieve |
Solve straightforward problems involving sequences. |
Assessment will be based on problems which may require a selection from the following: |
· find general terms of an arithmetic sequence |
· find general terms of a geometric sequence |
· find partial sums of an arithmetic sequence |
· find partial sums of a geometric sequence |
· find sum to infinity of a geometric sequence |
· use S notation |
· use recursive formulae. |
Straightforward problems will involve recognising the type of sequence, selecting the method, and solving problems where ‘a’ and ‘d’ or ‘r’ are easily identified. |
Merit |
Solve problems involving sequences. |
Problems could require some manipulation to find ‘a’, ‘d’ or ‘r’. |
Applications may include: radio-active decay, |
Excellence |
Explore situations and interpret the results of problems involving sequences. |
Situations and interpretations could include: discussing long-term effects, comparing sequences. |