A Logical Order of Topics for Honors Chemistry and AP Chemistry

In this post, a veteran AP Chemistry teacher explains his rationale for the course's topic order. By using an empirically driven sequence, students build deep conceptual understanding and rely less on memorization of facts. It’s a must-read for any educator aiming to make chemistry more meaningful—and more memorable—for students.

Egg-lectrons and McLewis Structures

Egg cartons and beverage holders can be used as models of atoms, with their dimples representing orbitals. Each dimple can hold up to two objects such as milk jug caps, plastic eggs, and cup pieces to represent electrons in the orbitals. Partially overlapping the trays by stacking the dimples represents chemical bonding and produces molecular models resembling Lewis structures. The models can be easily made from materials that can be readily found grocery stores and fast-food restaurants.

Chemistry Topics

acids/bases applications of chemistry aqueous solution chemistry Atomic Properties / Structure conductivity consumer chemistry Demonstrations density electrochemistry electrolysis equilibrium Food Science gases General Chemistry Intermolecular Forces kinetics Laboratory Instruction liquids metals noncovalent interactions Outreach oxidation/reduction Oxidation / Reduction Phases / Phase Transitions / Diagrams Physical Chemistry physical properties Polymer Chemistry Public Understanding reactions solids stoichiometry thermodynamics