The area quizzes were excellent; students saw them today.

We learned today about the volume of pyramids and cones through demonstration... Volume of a pyramid or cone is 1/3 the volume of the same base and same height prism or cylinder.

We also practiced naming solids by multiple names, learned what a regular polyhedron is and some things about them (platonic solids), and learned about irregular volume by displacement in a container of liquid. This also connected to a brief discussion of density and Archimedes dilemma with the king's crown.

Students were able to see if there homework answers needed work and get their questions answers. We started on a new assignment that also included surface area and well as volume.

New HW #9: p 450:7-8, p 457:30, p 511:41, p 518-9:8-9, 14-15, p 425:1-8.