In this learning activity you'll review how a local area network computer uses a subnet mask to determine if its message is intended for a computer on the same network or on a remote network.

In this learning activity you'll explore the IPv4 IP address scheme and the planned conversion to IPv6.

In this learning activity you'll examine the format of an IP address and interpret the octet by converting between decimal and binary numbers.

In this learning activity, you’ll explore how routers use routing tables to move data packets from their origin to their destination.

In this learning activity you'll create a packet filter.

In this learning activity you'll explore the process that servers follow to take a name entered on a computer browser and convert it to an IP address.

In this learning activity you'll examine how a data file is broken into packets and transmitted over the Internet.

In this screencast we are introduced to the lab equipment used to contain and dispense chemicals.

In this learning activity you'll write a description of a can opener.

In this interactive object, learners follow step-by-step instructions for reducing algebraic fractions so that they can then be multiplied. This activity has audio content.

In this learning activity you'll explain how voltage and resistance in a series circuit affect current flow.

Identify and learn more about the parts of a welding torch, cables, and a welding machine.

In this animated learning object, learners view how the fats that people eat are digested and absorbed.

Students read how to determine and calculate the void ratio for a given sample of soil or aggregate based on the weight-volume relationship.

The student reviews definitions of principle/principal and completes a practice exercise.

This animated lesson shows how a ladder circuit causes the cylinder of a hydraulic circuit to continuously extend and retract after a Start button has been pressed.

In this learning activity you'll learn what Zip files are, their origins, and how to work with them in Windows.

In this interactive activity, students read about the colored stripes on a resistor and interpret the placement of those colors to determine the value of four-band resistors.

Students read how to organize their work when multiplying more than two signed numbers. A review and practice problems complete the activity.

Explore what DML is including its main commands INSERT, UPDATE, DELETE, and SELECT.