In this animated and interactive object, learners examine the voltages that develop across two series zener diodes, which are connected in opposite directions, when DC and AC voltages are applied across them. A brief quiz completes the activity.

In this animated object, learners examine the operation of two-way, three-way, and four-way directional control valves used in pneumatic systems.

In this screencast, Geometric Dimensioning & Tolerancing: The Feature Control Frame, learners examine geometric characteristic symbols, tolerances, datum feature symbols, and other control frame information.

Students answer five questions concerning magnetism.

Learners practice revising poorly written directions by applying criteria for giving directions.

The schematic symbols of logic gates used in digital circuits are shown.

Students read information about basic logic gates including the gates' names, symbols, Boolean expressions, pronunciations, and truth tables. They then complete a matching exercise.

Learners examine the fundamental concepts of sequencer output instruction. A simulated example shows a sequencer in operation.

In this animated activity, learners examine how various NAND gate configurations and the logic signals produced throughout the circuit perform the functions of all of the other types of logic gates.

Answer correctly as much as you can in order for you to reach the honey pot. Click on the spin button on top right each time you finished answering a question.

You'll focus on terminology related to designing a hypothetical program.

play the epic baseball game answer questions correctly!!! have fun!

Match the following terms and definitions regarding The Nature of Math: Math as a Language, and Mathematical Reasoning.