Ions are electrically charged particles obtained from an atom or from a chemically bonded group of atoms by adding or removing electrons. Eight examples illustrate the number of protons, neutrons, and electrons in positive ions (cations) and in negative ions (anions).
Understanding The Interrelationship of Supply and Demand
In this learning object you'll examine the supply and demand curves and to demonstrate the effects on equilibrium price/quantity and on price ceilings and floors.
Students read about the different kinds of economic interest groups including business and trade associations, labor unions, agricultural organizations, and professional associations.
Learners will write effective business messages that incorporate a second-person point of view and focus on the benefit to the reader. This approach is often used to create positive messages, neutral messages, and inquiry messages in business settings.
Learners choose responses in workplace situations that are compared to positive-attitude responses. They evaluate their responses, looking for areas in which they would like to improve.
Students read about the Federal Reserve System's structure and goals and the tools it uses to control the flow of money and credit in the economy. At the end of this activity, learners are asked to write how they would solve specific economic problems if they served on the Fed's Board of Governors.
In this interactive object, learners consider the importance of demonstrating a positive attitude. They reflect on their own experiences and challenge themselves to let go of preconceived notions.