In this interactive lesson, learners study the use of "many" and "much" with nouns that can be counted and nouns that cannot. They then practice using these words in a drag-and-drop exercise.

Students use the Base Minus One Complement method to perform binary subtraction. This learning activity has audio content and immediate feedback.

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

In this interactive object, learners demonstrate their knowledge of the in-flight checklist a BE-76 pilot uses on a regular basis.

In this learning activity, learners will learn to calculate the average voltage produced by half-wave and full-wave rectifiers.

In this learning activity you'll discover transitional words to help you write an effective GED/HSED essay.

In this learning activity you'll be introduced to the communication model and how it impacts your work as an IT professional.

In this learning activity you'll apply chunking to memory formation and retrieval. You'll test your ability to memorize a series of numbers with and without the chunking method.

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.

This learning activity provides an overview of Search Engine Optimization, or SEO.

In this interactive object, learners view a mind map of the structural-functional Approaches and quiz themselves about the manifest and latent functions and the dysfunctions of social patterns.

Learners use the coefficients in a balanced equation to develop the mole ratios of reactants and products involved in the reaction. Five interactive examples illustrate the method, and students test their knowledge by working four problems.

In this interactive object, learners determine the pulse width, period, duty cycle, and frequency of a waveform.

Robotic welding is an increasingly popular tool used in industrial welding applications. Knowing how to program the robot is key. Explore how to improve your programming skills by using calls and unconditional jumps in this learning activity.

In this learning activity you'll demonstrate the magnitude of Gross National Product.

In this learning activity you can practice writing a technical descriptions of a pen.

In this learning activity you'll determine the total resistance in a DC parallel circuit.

In this animated and interactive object, learners examine ABO blood antigens and Rh antigens and their compatibility.

In a series of interactive exercises, learners identify the parts of a URL, a Web site, and an e-mail memo. Students are given their score at the end of the activity.

In this learning activity, you’ll identify information hackers use to gain access to a company, explain different types of social engineering attacks, and recognize different solutions to avoid these attacks.