Learners study the operation of a ladder circuit in which coils on one rung control contacts in other rungs.

In this animated object, learners study the drawbacks of a single-loop armature of a DC motor and the advantages of a multi-loop armature.

In this animated object, learners examine the operation of a multiplexer and the function of the data input and selector lines. A brief quiz completes the activity.

In this animated object, learners examine three different types of multivibrators: astable, monostable, and bistable. A brief quiz completes the activity.

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

In this learning activity you'll identify and calculate the multiplication of monomials.

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

In this learning activity you'll analyze four newspaper editorial submissions and formulate your own letter.

In this interactive and animated activity, students follow the steps for proper digital multimeter placement for resistance, voltage, and current.

In this interactive and animated object, learners examine the duty cycle of a squarewave produced by a multivibrator using a 555 IC (integrated circuit). A brief quiz completes the activity.

In this learning activity you'll explore the functions and proper operation of a digital multimeter.

Learners examine a 555 integrated circuit, which functions as a one-shot monostable multivibrator, and then test their knowledge. Immediate feedback is provided. Animations are used to show the sequential operations.

In this animated object, learners examine how a multiplexer and a demultiplexer work together when their data select lines are connected to the same binary counter.

In this animated and interactive object, learners examine a depiction of how force is multiplied by a larger cylinder when pressure from a pump is applied to a smaller cylinder. A short quiz completes the activity.

Learners practice a technique for finding the least common multiple of a group of numbers.

In this animated activity, the learner examines how a 74150 IC multiplexer and a 74154 IC demultiplexer work together when their data select lines are connected to the same input devices.

Students view the steps for multiplying complex numbers in Excel.

In this interactive object, learners follow step-by-step instructions for reducing algebraic fractions so that they can then be multiplied. This activity has audio content.

Learners read definitions of the terminology associated with algebraic operations and then follow steps to use the fundamental laws of multiplication to simplify algebraic expressions.

In this animated activity, learners follow a step-by-step approach for connecting a digital multimeter to measure resistance. A brief quiz completes the activity.