This is similar to a resource already on TES that I really like (https://www.tes.com/teaching-resource/gcse-maths-sequences-search-worksheet-6158880) but I wanted an activity that required more substitution into nth terms rather than pattern-spotting, so this is what I came up with.
Students have to find the 1st, 2nd, 5th, 10th, 50th and 100th terms of sequences using the given nth terms. They cross off all of their answers in the grid above. For ease of marking, there will be 10 numbers left over in the grid after the activity is completed. Students should add these together, and if they’ve made no mistakes, they’ll get a total of 1000. Full solutions are still provided however!
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How does this work when there are 170 possible numbers in the above grid and only 120 number sequence answers required? Surely it would be 50 numbers left in the grid (minus a few repeats), not 10? Any assistance would be appreciated, thanks.
Good engaging exercise - as a summary or second lesson starter.
Thank you for sharing this activity - it helps pupils self-check whilst going through, and also has a lot of repetitive practice. Great!
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