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Waldrip, Bruce; Prain, Vaughan – International Journal of Science and Mathematics Education, 2012
There is growing research interest in the challenges and opportunities learners face in representing scientific understandings, processes and reasoning. These challenges include integrating verbal, visual and mathematical modes in science discourse to make strong conceptual links between representations and classroom experiences. Our paper reports…
Descriptors: Chemistry, Competence, Secondary School Science, Science Instruction
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Chen, David Zhekai – Journal of Chemical Education, 2010
A new method for studying the periodic system is described based on the combination of a Kohonen neural network and a set of chemical and physical properties. The classification results are directly shown in a two-dimensional map and easy to interpret. This is one of the major advantages of this approach over other methods reported in the…
Descriptors: Chemistry, Scientific Principles, Tables (Data), Classification
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Wahab, M. Farooq – Journal of Chemical Education, 2009
The history of the discovery of iodine is retold using brown-colored seaweed found commonly along the ocean shore. The seaweed is ashed at a low temperature and the iodides are extracted into boiling water. The iodides are oxidized in acidic medium. Solvent extraction of iodine by oxidation of iodides as well as simple aqueous extraction of iodide…
Descriptors: Chemistry, Laboratory Experiments, Scientific Concepts, Science Instruction
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Johnson, Mike – Hoosier Science Teacher, 1998
Presents an exercise in which an eighth-grade science teacher decorated the classroom with a periodic table of students. Student photographs were arranged according to similarities into vertical columns. Students were each assigned an atomic number according to their placement in the table. The table is then used to teach students about…
Descriptors: Charts, Chemistry, Classification, Cluster Analysis
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Rodrigue, Christine M. – Journal of Geoscience Education, 2011
This paper presents a laboratory exercise used to teach principal components analysis (PCA) as a means of surface zonation. The lab was built around abundance data for 16 oxides and elements collected by the Mars Exploration Rover Spirit in Gusev Crater between Sol 14 and Sol 470. Students used PCA to reduce 15 of these into 3 components, which,…
Descriptors: Earth Science, Chemistry, Data, Factor Analysis
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Trost, Paul B. – Journal of Geological Education, 1977
Discusses reviewing and applying chemical principles and relationships observable in the Periodic Table of chemical elements to geologic observation. (SL)
Descriptors: Chemical Reactions, Chemistry, College Science, Earth Science
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Banks, Alton J.; Holmes, Jon L. – Journal of Chemical Education, 1995
Describes the characteristics of the digitized version of The Periodic Table Videodisc. Provides details about the organization of information and access to the data via Macintosh and Windows computers. (DDR)
Descriptors: Chemistry, Computer Software, Higher Education, Instructional Materials
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Saturnelli, Annette – Science Teacher, 1985
Examines problems resulting from different forms of the periodic table, indicating that New York State schools use a form reflecting the International Union of Pure and Applied Chemistry's 1984 recommendations. Other formats used and reasons for standardization are discussed. (DH)
Descriptors: Chemistry, High Schools, Models, Science Education
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Stevens, Shawn Y.; Delgado, Cesar; Krajcik, Joseph S. – Journal of Research in Science Teaching, 2010
We describe efforts toward the development of a hypothetical learning progression (HLP) for the growth of grade 7-14 students' models of the structure, behavior and properties of matter, as it relates to nanoscale science and engineering (NSE). This multi-dimensional HLP, based on empirical research and standards documents, describes how students…
Descriptors: Educational Strategies, Nuclear Physics, Grade 7, Science Education
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Izquierdo-Aymerich, Merce; Aduriz-Bravo, Agustin – Science & Education, 2009
In this paper we present an analysis of chemistry texts (mainly textbooks) published during the first half of the 20th century. We show the evolution of the explanations therein in terms of atoms and of atomic structure, when scientists were interpreting phenomena as evidence of the discontinuous, corpuscular structure of matter. In this process…
Descriptors: Textbooks, Nuclear Physics, Quantum Mechanics, Chemistry
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Lehman, Jeffrey R.; And Others – Journal of Research in Science Teaching, 1984
Explored the effects of learning on structural modifications to the periodic table; the location of a periodic table within instructional materials; and the presence of a two-page schema showing relationships between the topics explained in the written materials and the periodic table. Results obtained from 160 students are reported and discussed.…
Descriptors: Academic Achievement, Aptitude Treatment Interaction, Chemistry, High Schools
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Coe, Benjamin J. – Journal of Chemical Education, 2004
An experiment for third-year undergraduate a student is designed which provides synthetic experience and qualitative interpretation of the spectroscopic properties of the ruthenium complexes. It involves the syntheses and characterization of several coordination complexes of ruthenium, the element found directly beneath iron in the middle of the…
Descriptors: Chemistry, Undergraduate Students, Laboratory Experiments, Higher Education
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O'Brien, Nick – Education in Science, 2010
This article describes LabSkills, a revolutionary teaching tool to improve practical science in schools. LabSkills offers the chance to help improve the exposure that the average Key Stage 5 (age 16-19) student has to practical work. This is a huge area for development being highlighted by universities who are seeing a worryingly growing trend in…
Descriptors: Teaching Methods, Science Laboratories, Science Process Skills, Secondary School Science
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Waldron, Kimberley A.; Fehringer, Erin M.; Streeb, Amy E.; Trosky, Jennifer E.; Pearson, Joshua J. – Journal of Chemical Education, 2001
Slater's Z values are a limited pedagogical tool for understanding shielding trends throughout the periodic table. Uses screening percentages as a method to predict effective nuclear charge. (ASK)
Descriptors: Atomic Structure, Chemistry, College Science, Higher Education
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Seaborg, Glenn T. – Chemical and Engineering News, 1979
A discussion of the periodic table of the elements and the role it has played in the synthesis of man-made elements. (BB)
Descriptors: Atomic Structure, Chemistry, Physics, Radioisotopes
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