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AP Teach Easing your way into CED Unit 4

Shifra Yonis | Tue, 12/16/2025 - 10:38

This APTeach session focuses on low-prep, high-engagement strategies for AP Chemistry Unit 4 (Chemical Reactions), with an emphasis on helping students build conceptual understanding while preparing for AP-level rigor. The session highlights classroom-tested activities for net ionic equations, reaction stoichiometry, and solution stoichiometry, including labs, simulations, particle-level representations, and discussion prompts grounded in Johnstone’s Triangle. Designed to support both new and experienced AP teachers, these resources prioritize student sense-making while easing instructional planning for a traditionally challenging unit. 

Will a Watched Pot Ever Boil? A Simple, but Effective, Chemistry Lab: Constructing a Heating Curve of Water

GraceAnne Lourie | Fri, 10/28/2022 - 13:07

This lab guides students through taking data and constructing their own heating curve for water. It requires no special equipment, is low prep, is safe, and can even be done at home for homeschool or distance learning. Even though the lab activity itself is relatively simple and straightforward, the concepts still engage students in higher level thinking and gives them important practice with laboratory techniques and forming hypotheses.

Organic Chemistry and Tree Fruit: The Control of Ethylene-Induced Ripening of Fruit in Cold Storage Warehouses

T. Ross Kelly | Sat, 12/19/2020 - 11:35

Ethylene, C2H4, a volatile plant hormone stimulates fruit ripening and is also released during ripening. This post explains the role of ethylene in ripening and presents how the chemical identity of the ethylene scavenger used to suppress premature ripening during storage was determined.