Students read about the characteristics of the ideal operational amplifier and compare them with the industry standard LM741C.

Learners read how quality can be built into a manufacturing process.

In this animated object, learners examine how a Hall-effect sensor operates. A short quiz completes the activity.

In this animated object, learners examine the operation of a hydraulic relief valve and its internal components. A brief quiz completes the activity.

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

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

Test your knowledge on very simple math problems

Numeros em portugues

Number sequencing

Asocia los números con su forma escrita.