Lecture 1, Jan. 10: Atoms, Molecules.

• Page 2: some more explanation added to the Bohr-Sommerfeld quantization rule. — Sam, 9:59PM, Jan 11, 2012

Lecture 2, Jan. 12: Basis and Bravais Lattice.

• Classroom activity sheets (with answers)

Lecture 3, Jan 17: Cell and Reciprocal Lattice.

• Classroom activity sheets: submit your answers to me! (optional)