The D.I. Delta Mysteries are a brand new series of exciting and thought-provoking maths crime stories, developed to raise the aspirations and attainment of your class.
Each of the six mysteries helps extend problem-solving, thinking and logical reasoning skills and can be used with one child or a group for class or home learning, or in whole-class sessions with the whiteboard.
To read more about the series, or to order click here.
To download and trial a sample mystery with your class please click here.