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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. 

UNO OUT…..Demystifying Stoichiometry

Nina Hike | Tue, 02/25/2025 - 14:57

This article describes a game aimed at helping students become comfortable using dimensional analysis. Designed to mimic the popular card game UNO, MOLE-O encourages students to think about how to set up a stoichiometry problem utilizing a deck of UNO-like playing cards. 

LEGO Stoichiometry Activity

Josh Kenney | Wed, 05/01/2024 - 10:37

Josh Kenney explains an innovative POGIL-like approach to teaching stoichiometry, integrating LEGO pieces. Addressing student difficulties with stoichiometry's abstract nature, he designed a custom LEGO activity inspired by existing resources, promoting collaboration and enhancing conceptual grasp. This engaging approach primes students for complex stoichiometry challenges.

Stoichiometry with Beads

Nora Walsh | Tue, 01/24/2023 - 20:04

Teaching and learning the concept of limiting reactants can be challenging. In this activity students manipulate beads to learn about stoichiometry. A virtual drag & drop version is also available. 

Fun with Formula Stoichiometry: “Who poisoned Veronica Merriweather?”

Chris Vyhnal | Fri, 09/16/2022 - 09:47

"Who Poisoned Veronica Merriweather?" is a fun application of formula stoichiometry for students who are placed in the role of a CSI lab sleuth helping to interpret chemical data to identify a murderer. Topics covered include formula stoichiometry, percentage composition, empirical and molecular formulas and gas chromatography–mass spectrometry.