Probability Year 7 Year 8 Year 9 record and describe the frequency of outcomes of record and describe the frequency of outcomes of record, describe and analyse the frequency of simple probability experiments; try to explain their simple probability experiments; in the light of outcomes of simple probability experiments findings using their own ideas about randomness experience begin to refine their own ideas about involving randomness, fairness, equally and and possible outcomes; make and explain their causal connections between aspects of unequally likely outcomes, using appropriate own judgments about the fairness of situations; experiments that involve randomness and equally language and the 0-1 probability scale; begin to understand that the probability of an impossible and unequally likely outcomes and the properties notice the same patterns in different situations event is 0, and of a certain event is 1, and begin of data distributions; make better informed to use the 0-1 probability scale judgments about the fairness of situations; begin to allocate probabilities to particular outcomes by considering all possible outcomes understand why, when there are only two understand that the probabilities of all possible possible outcomes, the probabilities of the two outcomes sum to 1 possible outcomes sum to 1 enumerate sets systematically, devising their enumerate sets systematically making use of enumerate sets and unions/intersections of sets own diagrams tables and grids systematically, using tables, grids and Venn diagrams generate theoretical sample spaces for single and combined events with equally likely, mutually exclusive outcomes and use these to calculate theoretical probabilities.
Probability Year 7 Year 8 Year 9 record and describe the frequency of outcomes of simple probability experiments; try to explain their findings using their own ideas about randomness and possible outcomes; make and explain their own judgments about the fairness of situations; understand that the probability of an impossible event is 0, and of a certain event is 1, and begin to use the 0-1 probability scale record and describe the frequency of outcomes of simple probability experiments; in the light of experience begin to refine their own ideas about causal connections between aspects of experiments that involve randomness and equally and unequally likely outcomes and the properties of data distributions; make better informed judgments about the fairness of situations; begin to allocate probabilities to particular outcomes by considering all possible outcomes record, describe and analyse the frequency of outcomes of simple probability experiments involving randomness, fairness, equally and unequally likely outcomes, using appropriate language and the 0-1 probability scale; begin to notice the same patterns in different situations understand why, when there are only two possible outcomes, the probabilities of the two possible outcomes sum to 1 understand that the probabilities of all possible outcomes sum to 1 enumerate sets systematically, devising their own diagrams enumerate sets systematically making use of tables and grids enumerate sets and unions/intersections of sets systematically, using tables, grids and Venn diagrams generate theoretical sample spaces for single and combined events with equally likely, mutually exclusive outcomes and use these to calculate theoretical probabilities.