Evan Silberstein

 (77)
United States - New York - Nanuet
Evan Silberstein
4.9
191 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
The localized electron model uses Lewis structures to predict molecular shapes. Lewis structures show the bonds and lone pair electrons of a molecule. A line is used to represent each bond and dots are used to represent the electrons. This
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
9
Digital Download PPSX (1.15 MB)
By Evan Silberstein
It's winter. The sidewalks are icy. Salting the walkways makes the ice melt. Antifreeze keeps the coolant in the car radiator from freezing. How does this work? Antifreeze is very different from salt, but the chemical properties of these materials
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
4
Digital Download PPSX (2.51 MB)
By Evan Silberstein
Moles seem mysterious to many secondary students. Avogadro's number is one of the culprits. Although it is possible to do a slew of factor label problems with Avogadro's number, it is not the primary value of the mole concept in chemistry. This
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
7
Digital Download PPSX (0.61 MB)
By Evan Silberstein
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
Subjects:
Chemistry
Grades:
10th, 11th
Types:
Lesson Plans (Individual), Lectures, PowerPoint Presentations
$2.00
4
Digital Download PPSX (1.04 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
Digital Download PPSX (0.43 MB)
By Evan Silberstein
Hybrid orbitals are the localized electron model's approximation of molecular orbitals. As a result, hybridization theory is essentially VSEPR in new clothes. As with VSEPR, predicting molecular shape and the type of hybridization is a matter of
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
6
Digital Download PPSX (1.02 MB)
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
Digital Download PPSX (0.55 MB)
By Evan Silberstein
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
Subjects:
Chemistry
Grades:
10th, 11th, 12th
Types:
Lectures, PowerPoint Presentations
$2.00
6
Digital Download PPSX (0.84 MB)
By Evan Silberstein
The Stock system names for bases and the base names are identical, but the Stock system names for acids and the acid names are not. For example, an aqueous solution of sodium hydroxide is called sodium hydroxide, while an aqueous solution of
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
3
Digital Download PPSX (0.49 MB)
By Evan Silberstein
The Bohr model may be flawed, but distilling atomic structure down to the principal energy levels, and ignoring the rest of the details regarding the electron distribution does a great job of explaining bonding and bonding ratios, especially for
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
3
Digital Download PPSX (0.45 MB)
By Evan Silberstein
VSEPR (Valence Shell Electron Pair Repulsion) sounds complicated, but actually it's as simple as counting from 2 to 6. Truthfully, there are a few considerations to correctly count the number of electron pairs surrounding the central atom, but once
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
4
Digital Download PPSX (1.42 MB)
By Evan Silberstein
Energy tends to dissipate through the universe. As a result the overall entropy of the universe is always increasing. For secondary students, entropy is best understood by its relationship to randomness or disorder. This PowerPoint presentation
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
3
Digital Download PPSX (1.13 MB)
By Evan Silberstein
This Powerpoint presentation explores the relationship between heat and temperature. It develops the equation q = m C ΔT, where q is heat, m is mass, C is specific heat capacity, and ΔT is the temperature change. The presentation explains the logic
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
5
Digital Download PPSX (1.00 MB)
By Evan Silberstein
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
Subjects:
Chemistry
Grades:
10th, 11th
Types:
Lesson Plans (Individual), Lectures, PowerPoint Presentations
$2.00
5
Digital Download PPSX (0.77 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
Digital Download PPSX (0.32 MB)
By Evan Silberstein
Most people think of acids and bases as opposites, but what is opposite about them? The key to understanding acids and bases is water. Water ionizes to produce a small but equal amount of hydronium and hydroxide ions. Addition of acid causes the
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
2
Digital Download PPSX (0.69 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
3
Digital Download PPSX (0.61 MB)
By Evan Silberstein
The first step to doing more complex stoichiometry problems is to learn to work with mole ratios. This Powerpoint presentation helps students to understand the relationship between the coefficients of a balanced equation and the mole ratios of the
Subjects:
Chemistry
Grades:
10th, 11th
Types:
PowerPoint Presentations
$2.00
3
Digital Download PPSX (0.20 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
Digital Download PPSX (0.33 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
Digital Download PPSX (0.48 MB)
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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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