The ChemCollective—Virtual Labs for Introductory Chemistry Courses

摘要: taught out contexts utility draw connections to core ideas they can appear as a disconnected bag ( 1). The ChemCollective (www.chemcollect ive. org) is library of online activities for general chemistry instruction that engages students problem-solving than those found textbooks. Our goal allow stu- abstract concepts experiments panel pro- vides multiple representations the contents selected including perature and pH, cies amounts shown grams, or molar concentrations. These quantities are in computational so this provides explicit link between paper-and-pencil calculations course chemical performs on workbench. virtual lab supports new forms problem-solving. Consider limiting reagents reaction usually taught. A student’ s practice with concept typically centers standard predicting fi nal reagents, initial amounts. “unknown reaction”