Students study two graphs on some rocks and lake features of Saharan North Africa and answer a mix of questions to show this ability to interpret these graphs.
Students draw in the next two shapes in a spatial pattern, complete a table and rules about the pattern, then calculate the number of triangles in the 8th shape.
Students use substitution to calculate the cost and length of time taken to repair washing machines, and formulate and solve a related linear equation.
Students answer two questions about exercise times for an incrementing fitness programme. They identify an expression relating time exercised to the number of weeks on the programme, and explain why this pattern couldn't continue indefinitely.