Evan Silberstein

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United States - New York - Nanuet
Evan Silberstein
3.9
143 votes
Visit www.evanschemistrycorner.com for free resources to go with my Power Points. And now, flip the classroom with video lessons. More videos will be coming soon.
 
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Electron configurations come in several varieties: Bohr notation; sublevel notation; and orbital notation. This PowerPoint show explains the energy considerations for electron placement and develops a model to determine the order of filling. This
$2.00
6 ratings
3.9
Digital Download PPSX (0.84 MB)
Are the electrons really moving in circles? Bohr was unable to explain why his proposed orbits were stable. Even worse, Bohr could only explain the line spectrum of hydrogen. This PowerPoint starts with Bohr's flaws, and explores DeBroglie,
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2 ratings
4.0
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This presentation uses a novel approach to help students easily figure out how to convert to and from scientific notation. It also helps the students develop rules for calculating with scientific notation. Don't forget to go to my website for the
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5 ratings
4.0
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This Power Point presentation answers the question, "How many decimal places do we need to carry this out to?" It explains the need for significant figures by pointing out the ridiculousness of digits in calculations that go way beyond the precision
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2 ratings
4.0
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The factor label method is a powerful tool for solving mathematical problems in the physical sciences. It is sometimes called unit analysis. It is used in unit conversions, but it is also used in stoichiometry, concentration problems, and more.This
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3 ratings
4.0
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Errors of measurement are unavoidable. Not all errors are created equal. This Power Point presentation explains how to evaluate an error by calculating the percentage error. As always, free work sheets for the presentation are available on my web
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2 ratings
4.0
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The distinction between a compound and a mixture is that in a compound, the components are chemically combined, while in a mixture they are not. But what does that mean. This Power Point presentation compares and contrasts mixtures and compounds so
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4 ratings
4.0
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Quantum numbers are often covered in the context of an honors chemistry course. This PowerPoint show examines the meanings of the quantum numbers, and their implications with respect to electron configurations. There is no need to plug these numbers
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2 ratings
4.0
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In this presentation, students compare items that are and are not matter to determine the essential difference. The definition and properties of matter are discussed. Elements, compounds, and mixtures are defined. Then chemical symbols from the days
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1 rating
4.0
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Where are the electrons? Rutherford said they must be revolving around the nucleus. Bohr analyzed and interpreted bright line spectra as evidence that there were stable circular orbits that described electron energies. This PowerPoint explores the
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3 ratings
4.0
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With Thomson's discovery of neon atoms with differing masses, Dalton's postulate that all atoms of an element are identical and have the same mass faded away. This PowerPoint show, examines the history from Dalton to Chadwick regarding atomic mass,
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1 rating
4.0
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This Power Point presentation clarifies the difference between solutions and mechanical mixtures, and describes the types of mechanical mixtures. Support materials including worksheets are available free of charge on my web site at
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2 ratings
4.0
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The ancient Greeks debated the existence of atoms, but Dalton provided the quantitative data that made the case for their existence. This PowerPoint presentation explores the historical development of atomic theory with an emphasis on understanding
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1 rating
4.0
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Discovery of the Atomic Nucleus is a PowerPoint presentation that explores the alpha scattering experiment. Students are encouraged to anticipate the results of alpha scattering with either the Dalton or Thomson model of the atom. Then they analyze
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1 rating
4.0
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Dalton said atoms were indivisible. Perhaps he was wrong. This PowerPoint explores Thomson's discovery of electrons using a modified Crookes tube. The evidence is discussed and a model is developed that accounts for the evidence. Support materials
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$2.00
1 rating
4.0
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Students often perceive the scientific method as a mystical approach limited to the realm of science. This presentation breaks that stereotype by using Columbus's attempted voyage around the world as a jumping off point to discuss observations,
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1 rating
4.0
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The numbers we use in science come from measurements. Shocking, though it may sound, measurements are always accompanied by error. This power point examines the nature of error, accuracy, and precision as it relates to measurement. Accuracy and
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1 rating
3.9
Digital Download PPSX (1.47 MB)
Flip the classroom or enable students to learn independently with video. In this video lesson, unit conversion by the factor label method is explained step by step in a narrated PowerPoint presentation. The video is 12 minutes and 47 seconds long.
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Flip the classroom. Help your students learn independently. This 10 minute and 13 second video describes the purpose and format of numbers in scientific notation. It explains how to convert numbers from standard format to scientific notation and
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$5.00
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This 7 minute video describes the importance of measurement to observation. It explains why estimation is necessary and errors are unavoidable. Finally it distinguishes between precision and accuracy.
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143 total vote(s)
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TEACHING EXPERIENCE

Taught biology, chemistry, and general science in the East Ramapo Central school District, Spring Valley, NY from 1970 to 2003. Teach chemistry at the Frisch school, Paramus, NJ since 2003

MY TEACHING STYLE

I teach using the smart board and power point presentations. My lessons depend heavily on questioning and student responses. Lessons generally include activities and/or demonstrations with work sheets for follow up. All of my work sheets correlated to my power point presentations, and are available free of charge on my web site: http://www.evanschemistrycorner.com .

HONORS/AWARDS/SHINING TEACHER MOMENT

Yet to be added

MY OWN EDUCATIONAL HISTORY

B.S.: 1970 SUNY at Stony Brook M.S.: 1973 SUNY at New Paltz Post Graduate: Hebrew University, Jerusalem NYU, New York, NY Iona College, Rockland Campus, Orangeburg, NY

ADDITIONAL BIOGRAPHICAL INFORMATION

Writer and contributing writer for D.C. Heath and Prentice Hall science texts and ancillaries. I also now have a video course, "The Mathematics of Chemistry," at http://www.lernsys.com/en/the-mathematics-of-chemistry .

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