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Combinations & Permutations. Permutation => Order is important. Examples: Your Locker “Combination” The lunch line (might run out of your choice) Sports (1 st 2 nd 3 rd place) Spelling a word ( bat is different than tab). Combination => Order doesn’t matter. Examples:
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Combinations & Permutations Permutation => Order is important Examples: Your Locker “Combination” The lunch line (might run out of your choice) Sports (1st 2nd 3rd place) Spelling a word ( bat is different than tab) Combination => Order doesn’t matter Examples: Ice cream scoops in a bowl 3 people on the same team
How many different ways can 2 coins land? Make a list
1 Notice 2 x 2 = 4 2 3 4
How many different ways can 2 dice land? Make a list
Possiblilities • How many different ways can you arrange the letters ABC using all 3 letters at the same time? Make a list ABC ACB BAC BCA CAB CBA
Interactive Website http://www.usca.edu/Free/mmp_counting/principles.html
HS Kid techy http://www.youtube.com/watch?v=H9Sm9uV-xto&feature=related Ski Lock http://www.youtube.com/watch?v=UryifA0ULfo&feature=related TI-84 http://www.youtube.com/watch?v=eEC1f97XYGY&feature=related