In this learning activity you'll review different math symbols and identify them in a matching exercise.

Learners examine the drawing symbols used for counterbore, countersink, spotface, radius, diameter, and depth. In the quiz that completes the activity, they associate these symbols with machining applications.

Learners read about the most common forms of financial statements including balance sheets, cash flow statements, and profit and loss statements. A brief quiz completes the activity.

Learners use basic math skills in a workplace situation.

In this interactive object, the learner examines the basic terms used in division. A quiz completes the activity.

Learners study the types of symbols used on a P&ID diagram to indicate instruments. A quiz completes the activity.

In this learning activity you'll explore what scientific notation is and how it's used to express very large and very small numbers.

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

In this learning activity you'll read key words that direct you to add, subtract, multiply, or divide.

In this learning activity you'll apply the Pythagorean Theorem to isosceles and equilateral triangles.

In this learning activity you'll discover what the .NET Framework is, what problems it solves, and how it came to be.

At the end of this lesson you will be able to

- Explain what biosecurity means.

- Describe why biosecurity is important.

- Identify what kinds of disease agents we try to prevent or control with biosecurity.

- Demonstrate disease agent-host-environmental interactions that result in disease.

In this learning activity you'll understand what flow charts are and how they're used to create computer programs.

Learn more about debugging including: what it is, why we use it, and what it looks like in action.

Learners examine the different types of lines used on a P&ID diagram and the types of connections they represent. They test their knowledge in a matching exercise.

Learners quiz themselves on the conversion factors within and between the metric, apothecary, and household systems.

The learner reads about the kinds of questions that are most effective to use on student questionnaires evaluating instruction. Generic evaluations are less helpful than evaluations focused on the specific types of instruction and learning expected in a content area. Sample questions are provided.

In this learning activity you'll read introduction to electrical quantities, units, and symbols and test their knowledge in a matching exercise.

Learners study an animation that shows how a battery charge reduces over time and when varying resistance values are placed in a series circuit. Ten review questions complete the activity.

In this animated object, learners view hydrogen and hydroxide ions in a solution. A brief quiz on the basic principles of the term pH completes the activity.