Cool Math
Coolmath: Finding the Opposite of a Number
This prealgebra lesson gives you practice on finding opposite numbers.
Better Lesson
Better Lesson: Adding and Subtracting Integers on a Number Line
Sixth graders work with a number line and football to model adding and subtracting integers.
Concord Consortium
Concord Consortium: Direction and Strength of Force in Electric Fields
Explore the strength of force between charged objects.
Concord Consortium
Concord Consortium: Electric Potential Energy and Charge Intensity
Compare the potential energy of particles with varying amounts of charge.
Khan Academy
Khan Academy: Understanding the Wet Collodion Process
The wet collodion process was a photographic process used to produce a negative.
Khan Academy
Khan Academy: The Wet Collodion Process Quiz
Test your knowledge of the wet collodion process.
Other
South Western Learning: Econ News: Externalities, Market Failure, Public Choice
This study guide distinguishes between positive and negative externalities and how to correct negative externalities. Some learning exercises and an online quiz are also provided.
Other
Esl Verbs: Present Simple Negative
Examples of some troublesome verb forms using the present simple negative.
English Zone
English zone.com: Contractions Practice #2
Students type eight contractions that are formed by combining a helping verb with the adverb "not." When finished, students can check their work to see how many answers are correct.
Sophia Learning
Sophia: Polar and Non Polar Molecules: Lesson 2
This lesson will introduce polar and non-polar molecules, explaining their location, charge, and mass. It is 2 of 3 in the series titled "Polar and Non polar Molecules."
Sophia Learning
Sophia: Polar and Non Polar Molecules: Lesson 3
This lesson will introduce polar and non-polar molecules, explaining their location, charge, and mass. It is 3 of 3 in the series titled "Polar and Non polar Molecules."
Sophia Learning
Sophia: Euphemisms: Lesson 1
This lessons introduces euphemisms and discusses their use. It is 1 of 3 in the series titled "Euphemisms."
ClassFlow
Class Flow: Negative Numbers
[Free Registration/Login Required] In this flipchart students apply their knowledge of integers to combine positive and negative integers and locate their position on a number line.
ClassFlow
Class Flow: Order Negative
[Free Registration/Login Required] The teacher will use this lesson plan flipchart to review positive and negative numbers.
ClassFlow
Class Flow: Positive and Negative Numbers
[Free Registration/Login Required] This lesson is an early introduction to positive and negative numbers.
ClassFlow
Class Flow: Slope
[Free Registration/Login Required] Slope (positive, negative, no, and undefined) in the real world.
Wyzant
Wyzant: Simplifying Multiple Signs Worksheet
Dealing with multiple positive and negative signs in an algebra equation can be a challenge for some students. This inter-active quiz from WyzAnt provides 20 multiple-sign equations and their answers for students to test their knowledge.
ClassFlow
Class Flow: Multiplication of Integers
[Free Registration/Login Required] This flipchart explores the rules of multiplying integers that have a positive and negative value.
ClassFlow
Class Flow: Always, Sometimes, Never
[Free Registration/Login Required] In this lesson, students will be given ten statements. Using the Activotes, they are to choose whether each statement is always true, sometimes true, or never true.
ClassFlow
Class Flow: Fraction Decimal Equivalent
[Free Registration/Login Required] The teacher will use this lesson plan to identify and represent on a number line decimals, fractions, mixed numbers, positive and negative integers.
Kenyon College
Kenyon College: Negative Externalities Bonneville and Glen Canyon Dams
This article examines the impact of the Bonneville Dam and the Glen Canyon Dam, both in the American West, and examines how there has been a negative impact on the surrounding wildlife, peoples, and even Mexico. The article also...
Purple Math
Purplemath: Polynomial Graphs: End Behavior
Explains how to recognize the end behavior of polynomials and their graphs. Points out the differences between even-degree and odd-degree polynomials, and between polynomials with negative versus positive leading terms.
Math Open Reference
Math Open Reference: Imaginary Number
Learn about imaginary numbers with this handy reference guide. Provides a detailed definition and examples that enhance further explanation. Includes links to related topics.
Other
Grammar Monster: What Does Connotation Mean?
Learn the difference between positive and negative connotation, and then practice determining connotation in context examples. Please be aware that this is an ad-heavy resource.