444 Monday 11/15

• Fundamental Theorem 1 for Isometries.
  • An isometry is determined by its value on 3 noncollinear points.
• Start of the list of all isometries..

Link to Class #21 Page

444 Wednesday 11/17

• Intro. Definition of translation
• Discussion: whither class?
• Fundamental Theorem 2 for Isometries.
  • Every isometry is the composition of 1, 2 or 3 line reflections.
• Continue trying to understand all about plane isometries.

Link to Class #22 Page

487 Wednesday 11/17 Lab 8

• Glide Reflections
• Fundamental Theorems of Isometries

444 Friday 11/19

Introduction to 3D polyhedra

• Terminology
• Nets and model building with Polydrons
• Platonic solids
• Antiprisms

Link to Class #23 Page