Learners examine the internal parts of a DC electrical motor and then text their knowledge in a drag-and-drop exercise.

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated.

In this animated activity, learners examine the circuitry in a DC variable speed drive that causes the motor to accelerate or decelerate at slow rates. This learning object has audio content.

Students follow step-by-step instructions to learn how to use the SIMULT function on this scientific calculator.

Students read the rules used in multiplying and dividing signed numbers. They view examples and work practice problems.

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

Learners follow the steps for adding and subtracting signed numbers and complete practice exercises.

Learners read the definitions of working capital, current ratio, quick ratio, return on equity, accounts receivable turnover, and inventory turnover.

Learners work problems to make conversions between RMS, average, peak, and peak-to-peak AC voltages.

I numeri amici

Practice Your Addition & Subtraction For Fun!

Vocab Words section 1 & 2

Numbers in Spanish