In this learning activity you'll examine the terms associated with a grouped frequency distribution and follows the steps to construct a grouped frequency distribution using manual methods.

Students review the functions of the keys on the Starrett HB400 Optical Comparator controller.

Using a memory shortcut for calculations, the learner determines line and phase values of current in a three-phase AC configuration. Practice problems complete the activity.

Learners examine the process for determining the total inductance of a parallel circuit. They then complete practice problems.

Learners read about the different uses of the word "data." They will test themselves on examples of data that is singular, plural, qualitative, quantitative, nominal, ordinal, interval, rational, discrete, or continuous.

In this interactive object, learners solve a school mystery by identifying the "suspects" in the hierarchy of questioning: knowledge, comprehension, application, analysis, synthesis, and evaluation. This activity was designed for teachers and instructional assistants.

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

Students review the Current Divider Rule (CDR) and work practice problems.

Students view a sample of the keystrokes of a TI-30XIIS calculator that are required to solve for the instantaneous current of a de-energizing circuit.

In this screencast, learners examine the concept of gear ratios. The number of teeth, diameters, and velocity relationships are discussed and calculated using linear ratio equations.

Students read about Benelux, the three countries in Europe that work together as an economic unit. Students test their knowledge by identifying the countries on a map.

In this learning activity you'll create a stem and leaf plot.

In this learning activity you'll calculate the difference in the total cost of a new car when using cash and when paying for the car with a 60-month loan.