Learners examine microscope images of blood agar and the various types of hemolysis that can be detected. A quiz completes the activity.

In this interactive object, learners review descriptions of various blood collection tube additives. They then test their knowledge by matching the different tubes to their corresponding additives.

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

Learners read a scenario about a blood-borne pathogen incident in the workplace and decide the best action to take.

In this animated activity, learners examine how organs are visualized in three dimensions. The terms “longitudinal,” “cross,” “transverse,” “horizontal,” and “sagittal” are defined. Students test their knowledge of the location of abdominal pelvic cavity organs in two drag-and-drop exercises.

In this animated activity, learners examine how organs are visualized in three dimensions. The terms “longitudinal,” “cross,” “transverse,” “horizontal,” and “sagittal” are defined. Students test their knowledge of the location of abdominal pelvic cavity organs in two drag-and-drop exercises.

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

Students analyze the eight single variable Boolean theorems and their expressions.

Learners apply the principles associated with Boyle’s Law.

In this interactive object, learners practice their 3D visualization skills by identifying the correct isometric view of an object. Front, side, and top orthographic views are shown.

In this interactive object, learners practice their 3D visualization skills by identifying the correct isometric view of an object.

Learners develop 3D visualization skills by examining front, side, and top orthographic views of objects. Using this information, students select the corresponding isometric view of each object.

Learners examine the proper way to set up standard and metric micrometers to measure the wear on a brake drum.

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.

Students read about the components of a resume and write one for personal use.

Students read about the process of hair growth beginning with the joining together of amino acids.

In this interactive object, learners read the definitions of prefixes and suffixes that relate to the digestive system. They then use this knowledge to combine word components to form medical terms.

Learners will examine the four steps to listen actively to improve relationships.

Students read about the use of business cards in various countries and the customs that Americans should follow when presenting a card in those parts of the world.

In this interactive lesson, learners read the rules for filing business records and then test their knowledge in a series of exercises. Immediate feedback is provided.

In this interactive object, students read how to calculate the blank size for cylinders in a three-roll pinch roller. A calculator is required for the brief quiz that completes the activity.

In this animated activity, learners view the seven steps that are used to calculate voltage and current values throughout a common-emitter transistor amplifier.

In this animated and interactive object, learners examine the formula for horsepower and work practice problems.

In this animated activity, students read directions on how to calibrate a thermometer.

In this animated and interactive object, learners follow three steps to calibrate an opposed optical sensor. They consider horizontal alignment, the sensitivity setting, and having an effective beam.