(Note: I have kept this resource for posterity, but please use the 'GCSE Counting Strategies' resource instead)
(a) Appreciate that if different selections are independent, each with a number of choices, then the total number of combinations is the product of these.
(b) Understand and use factorial function.
(c) Understand and use 'choose' function.
(d) Solve a variety of arrangement problems.
Counting by (a) systematic listing and (b) by multiplying. Part of the new GCSE specification.
GCSE question compilation which aims to cover all types of questions that might be seen on the topic of counting strategies. Students can complete this set of questions interactively on the DFM Homework Platform. Also contains answers.
Activity in which students have to count the total number of possible paths for a robot given certain restrictions on its movements, in order to work out probabilities.
will not interrupt what you are doing.