How to Read a Caliper

By Barbara Anderegg

In this interactive object, learners review how to read a caliper. They then test their skills with eight practice questions.

Reading a Micrometer

By Sue Silverstein

In this learning activity you'll practice reading a micrometer.

A Drill for Converting Binary Numbers to Decimal Numbers

By John Rosz

Students test their skill at converting binary numbers to decimal numbers. Immediate feedback is provided.

Karnaugh Maps

By Patrick Hoppe

Learners examine the Karnaugh map for a three-variable system. Several examples are given.

Print Reading: An Alphabet of Lines in Print Reading

By Kelly Curran

In this animated activity, learners read about the types of lines found on blueprints. A quiz completes the activity.

A Sample Exam for Digital Electronics

Students answer 10 questions in a sample exam. This exercise covers number systems, number conversion, logic gates, and combinational design. Feedback is provided.

AND Gates

By Terry Bartelt

In this learning activity you'll describe the operation of an AND gate by using a truth table, a waveform diagram, a Boolean Algebra equation, a switch analogy, and a written definition.

Demultiplexers

In this animated object, learners examine the operation of a demultiplexer along with the data output and select lines. A brief quiz completes the activity.

Practical Trigonometry

After a brief review, the student solves five practical shop problems using right angle trigonometry.

Everyone Knows How to Use a Ruler, Right?

Students review the best practices for using a ruler and answer five basic questions.

The Dial Caliper

Learners review guidelines for the proper use of a dial caliper. Illustrations appear throughout the learning object.

Clock Pulse Triggering of Flip-Flops

This learning object shows the symbols used to represent the type of pulse required at the clock input to activate flip-flops.

Cascading Magnitude Comparators

Learners read an explanation of how to connect two 7485 ICs to compare binary numbers by creating an 8-bit comparator. Diagrams and charts are presented.

Sine Bar

In this learning activity you'll examine how a sine bar is used to measure angles.

Logic Symbols

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

Multivibrators

In this animated object, learners examine three different types of multivibrators: astable, monostable, and bistable. A brief quiz completes the activity.

Basic Logic Gates

By Terry Bartelt, Terry Fleischman

The learner will understand the operation of the six fundamental logic gates and the inverter by using truth tables, Boolean Algebra equations, switch analogies, and written statements.

The 7493 IC Binary Counter

In this interactive and animated object, learners examine the construction of a 7493 IC as mod-2 and mod-8 up-counters. They view how this binary counter can be modified to operate at different modulus counts. A quiz completes the activity.

Boolean Theorems (Multivariable)

Students read the multivariable theorems and view the graphic depictions of the Boolean expressions.

Building a Binary Counter with a JK Flip-Flop

In this animated activity, learners examine the construction of a binary counter using a JK flip-flop. The ability of the JK flip-flop to "toggle" Q is also viewed.

The MOD 10 Counter

The technique for designing a MOD 10 counter is introduced. Asynchronous inputs of a JK flip-flop are used to clear the counter.

Using an Indicator

By Janet Braun, Barbara Anderegg

Students read about the basics of using an indicator.

Indirect Measurement Instruments

The learner will define indirect measurement, identify common indirect measuring tools, and select the proper measuring tool for the situation.

The Welder's Tool Bag

By lloyd

In this learning object, youâ€™ll explore what tools should be a part of every welding tool bag.

Hexadecimal Number Conversion Practice Problems

In this learning activity you'll practice converting between hexadecimal and decimal and between hexadecimal and binary numbers.