In this animated activity, the learner examines how a 74150 IC multiplexer and a 74154 IC demultiplexer work together when their data select lines are connected to the same input devices.

In this interactive object, learners view the icons and symbols used most frequently in value steam mapping. A matching activity completes the object.

Learners observe the animated operation of an astable mulivibrator using a 555 IC (integrated circuit) chip and external components.

Learners examine a 555 integrated circuit, which functions as a one-shot monostable multivibrator, and then test their knowledge. Immediate feedback is provided. Animations are used to show the sequential operations.

Instructions on how to wire an integrated circuit are given.

In this screencast, learners examine the internal elements of a 555 IC and their operation.

In this animated lesson, learners examine sine waves and alternating current. A brief quiz completes the object.

In an interactive exercise, learners identify the human body sites that harbor a normal resident flora and the sites that are sterile.

In this learning activity you'll match the different responsibilities of the federal court system with the appropriate federal court.

In this interactive and animated object, learners examine the SUN VAT-40 battery starting and charging system tester. This learning object demonstrates the use of the tester in diagnosing conventional 12-volt automotive charging systems. It contains audio.

In this interactive object, learners examine the structural-functional, social-conflict, and symbolic interaction analyses of socialization. A mind map and quiz questions are included.

Learners review Ohm's Law and then work 12 problems to help them apply the law to automotive electrical systems. In each of the problems, students are given two of the three variables (voltage, resistance, or current) and are asked to solve for the third.

In this learning activity you'll examine the software operation Dynamic Host Configuration Protocol (DHCP), which automatically performs TCP/IP configurations.

In this learning activity you'll review various types of common components used in electronics and view their schematic diagram symbols.

In this learning activity you'll evaluate the six trig functions using a scientific calculator.

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated by each resistor.

The student identifies micrometer parts.

Students practice adding some of the basic prefixes to words in the English language.

In this interactive and animated object, learners examine the operation of a semiconductor diode when it is forward and reverse biased. A brief quiz completes the activity.

This interactive learning object is designed to help learners memorize the color code used on some hydraulic schematic diagrams. Learners quiz themselves using electronic flashcards.