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Tianli Han; Shanshan Yang; Liying Zhu; Xirong Lin; Jinyun Liu – Journal of Chemical Education, 2023
An experimental design by combining hydrogel and ethylenediaminetetraacetic acid disodium salt (EDTA) for visually displaying chemical complexation reactions is developed. The Na[superscript +] ions on the [alpha]-l-guluronic acid (G) unit of the sodium alginate molecule undergo an ion exchange with a divalent cation, so that the G units are…
Descriptors: Chemistry, Science Education, Teaching Methods, Science Experiments
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Rogers, George L. – Journal of Research in Music Education, 1996
Reports on an experiment where 64 elementary school students participated in reading, clapping, and vocalizing rhythms notated in color. Results after a 23-week treatment period revealed that the experimental group scored slightly higher reading both colored and uncolored notation than a control group. (MJP)
Descriptors: Color, Educational Research, Grade 1, Grade 2