There a a variety of good resources included in this link, the focus is mainly the volume of cuboids but some of the harder work extends to density and triangular prisms. The assessments are nice as they are differentiated into three levels and all have a clear mark scheme which gives you opportunity to do some peer or self marking. The activity sheets have some good ideas for practical applications including some work with cereal boxes. The overhead slides provide clear examples which would be nice to complete on the interactive board. Thank you for sharing.