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Olaya, Maria del Mar; Ibarra, Isabel; Reyes-Labarta, Juan A.; Serrano, Maria Dolores; Marcilla, Antonio – Chemical Engineering Education, 2007
An exercise to compute LLE data is presented to illustrate the problems that can arise when the isoactivity equilibrium condition is used in the LLE calculations. A much more efficient condition is obtained when isoactivity is combined with the common tangent line criterion, avoiding false solutions that correspond with very low values of the…
Descriptors: Chemistry, Computation, Chemical Engineering, College Students
1995
Montessori(TM) Learning Software programs are purportedly built upon the core concept of the Montessori philosophy, that a major path to intellectual development is through a child's hands and senses. Math by Colors, recommended for ages 4 to 8, encourages hands-on discovery by allowing the child to choose the right color from the assembled paint…
Descriptors: Arithmetic, Computer Uses in Education, Context Clues, Courseware