In the proposed new SI, the kilogram will be redefined in terms of the Planck constant and
the mole will be redefined in terms of the Avogadro constant. These redefinitions will have …

This book establishes a new theoretical and practical framework for multimodal disciplinary
literacy (MDL) fused with the subject-specific science pedagogies of senior high school …

Students with and without learning disabilities in high school chemistry classes, either co-
taught or self-contained, received instruction on calculating molar conversions using …

In upper-secondary chemistry education, the concept of 'Amount of Substance'occupies a
central position within the computation framework. However, comprehending this concept …

This article presents and discusses the results of a study that investigates university
students' comprehension of the concept of molar concentration, following teaching and …

The unit factor method, a generic strategy for solving any proportion-related problem, is
known to be effective at reducing cognitive load through unit-cancellation providing step-by …

The quantity amount of substance (symbol “n”) and its SI unit, the mole (symbol “mol”), are
unfamiliar to novice chemistry students. Developing a good understanding of this quantity …

Stoichiometry calculation competence tends to be particularly poor in the developing world,
even among teachers. Various methods, including the unit factor method, have the potential …

High school students find reaction stoichiometry and the concept of the mole hard to
comprehend. Teachers are well aware of the importance of teaching the mole concept and …

The definition of the mole in the current SI and the draft definition for the “new SI” are
reviewed. Current textbook treatments of the mole are compared to these official definitions …