Evan Silberstein

 (70)
United States - New York - Nanuet
Evan Silberstein
3.9
174 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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By Evan Silberstein
There is more to an acid than a sour taste and a low pH. There are three models of acids and bases: The Arrhenius Theory; the Brönsted-Lowry Model; and the Lewis Model. This PowerPoint presentation explains what these models are and how they are
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
4 ratings
4.0
Digital Download PPSX (0.55 MB)
By Evan Silberstein
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
Subjects:
Chemistry
Grades:
10th, 11th
Types:
Lesson Plans (Individual), Lectures, PowerPoint Presentations
$2.00
3 ratings
4.0
Digital Download PPSX (0.33 MB)
By Evan Silberstein
Many chemical reactions occur in an aqueous environment. Premixed solutions of known concentration provide chemists a convenient way to accurately measure out reactants. A solution of known molarity always provides a specific amount of solute for a
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$3.00
3 ratings
4.0
Digital Download PPSX (0.43 MB)
By Evan Silberstein
It is possible to predict what will happen to a chemical reaction at equilibrium as conditions change based on collision theory. It is easier to predict using Le Chatelier's Principle. Le Chatelier's Principle says when stress is applied to a system
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
2 ratings
4.0
Digital Download PPSX (0.48 MB)
By Evan Silberstein
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
Subjects:
Chemistry
Grades:
10th, 11th, 12th
Types:
Lectures, PowerPoint Presentations
$2.00
4 ratings
4.0
Digital Download PPSX (0.47 MB)
By Evan Silberstein
During chemical reactions, mass is conserved. This is because no atoms are created or destroyed, rather they are rearranged. A chemical equation needs to show conservation of mass. The number of each type of atom needs to be the same on both sides
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
3 ratings
4.0
Digital Download PPSX (0.56 MB)
By Evan Silberstein
Hydrocarbon names use prefixes, suffixes, and numbers to designate the length of the main chain, the type of bonds in the main chain, and the number, type, and location of side chains. This PowerPoint presentation leads the student through the
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
4 ratings
4.0
Digital Download PPSX (0.36 MB)
By Evan Silberstein
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
Subjects:
Chemistry
Grades:
10th, 11th
Types:
Lesson Plans (Individual), Lectures, PowerPoint Presentations
$2.00
2 ratings
4.0
Digital Download PPSX (0.61 MB)
By Evan Silberstein
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
Subjects:
Chemistry
Grades:
10th, 11th
Types:
Lesson Plans (Individual), Lectures, PowerPoint Presentations
$2.00
1 rating
4.0
Digital Download PPSX (0.64 MB)
By Evan Silberstein
Atoms are attracted to each other because they are made of charged particles. An atom's protons not only hold onto its own electrons, they also tug on the electrons of other atoms. This Powerpoint presentation explores the tug of war over valence
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
1 rating
4.0
Digital Download PPSX (0.58 MB)
By Evan Silberstein
Most high school students have seen chemical equations, but it is still necessary to review the format and symbolism of chemical equations before students can begin more advanced work with them. This Powerpoint presentation examines, the format and
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$1.00
2 ratings
4.0
Digital Download PPSX (0.60 MB)
By Evan Silberstein
Polar molecules have an unequal charge distribution. The only way that can happen is for a molecule to have polar bonds AND an asymmetrical shape. Bond type is determined by electronegativity difference. Charge distribution is a function of shape.
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
2 ratings
4.0
Digital Download PPSX (0.81 MB)
By Evan Silberstein
Before writing chemical formulas, students need to know how to interpret them. What do all the various symbols and numbers mean. This Powerpoint presentation explores concepts such as subscripts, coefficients, polyatomic ions, parentheses, and the
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
2 ratings
4.0
Digital Download PPSX (0.14 MB)
By Evan Silberstein
A chemical change is any change that results in the formation of new substances. Chemical changes are accompanied by physical changes. This makes it difficult, at times, to tell when a chemical change has occurred. This Powerpoint presentation
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
3 ratings
4.0
Digital Download PPSX (40.03 MB)
By Evan Silberstein
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
Subjects:
Chemistry
Grades:
10th, 11th
Types:
Lectures, PowerPoint Presentations
$2.00
4 ratings
4.0
Digital Download PPSX (0.32 MB)
By Evan Silberstein
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
Subjects:
Chemistry
Grades:
10th, 11th, 12th
Types:
Lectures, PowerPoint Presentations
$2.00
4 ratings
4.0
Digital Download PPSX (1.04 MB)
By Evan Silberstein
How did the Periodic Table become organized the way it is with the elements arranged in groups or families with similar valence shells and periods with the same number of principal energy levels? This Powerpoint presentation explores the historical
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
2 ratings
4.0
Digital Download PPSX (0.80 MB)
By Evan Silberstein
Empirical formulas are chemical formulas in lowest terms. Many ionic substances have only empirical formulas. Empirical formulas are needed for combustion problems as well. When a substance is analyzed by combustion, only the lowest ratio of the
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
4 ratings
3.8
Digital Download PPSX (0.88 MB)
By Evan Silberstein
Solutions consist of two separate substances dispersed through each other. Relative amounts of the two substances can vary. Think weak coffee versus strong coffee. The amount solute compared to solvent or solution is concentration. The common
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
2 ratings
4.0
Digital Download PPSX (0.63 MB)
By Evan Silberstein
The nucleus of an atom is a bit of a paradox. Positively charged protons are packed together in a small dense region of the atom. All these positive particles repel each other. This confers a degree of instability to the nucleus. Not surprisingly,
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
not yet rated
Digital Download PPSX (1.01 MB)
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174 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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