You should be able to complete this step just by playing around with the cube. Make sure that the edges ... pieces from the top layer. Follow the patterns below to get these pieces in the right ...

Whereas cuboids, they're like a stretched cube and have 2 square faces and 4 rectangular faces. Oh yeah. Alright. Please make him stop. Right, what about triangles? Triangles become pyramids.

You should be able to complete this step just by playing around with the cube. Make sure that the edges ... pieces from the top layer. Follow the patterns below to get these pieces in the right ...