In this learning activity you'll identify identify two-dimensional geometric shapes in a matching exercise.

In this interactive object, learners demonstrate the proper tightening sequence for mechanically joining two mating surfaces.

The learner will identify active and passive voice and distinguish between the two.

This document is a visual and text description of lathe cutting tool shapes.

In this learning activity you'll complete a skill-building exercise identifying effective nonverbal behavior.

Students use a map of Chicago to find their way to the Museum of Science and Industry. The activity offers practice in identifying directions on a map. A quiz completes the activity.

In this quiz, you'll practice identifying hand tools by name.

In this screencast, you'll review definitions of To, Too, and Two and review practice sentences.

In this learning activity you'll factor problems using the difference of two perfect squares.

In this animated and interactive object, learners observe how two, three, or four groups of electrons around the central atom cause the shape of the molecule to be linear, trigonal planar, bent, tetrahedral, or pyramidal. Seven examples and eight interactive questions are provided.

In this learning activity you'll apply knowledge about eustress to high and low stressors in your life.

In this animated object, learners examine the signals produced by sourcing and sinking two-wire sensors. A brief quiz completes the activity.

The student reviews definitions of to/too/two and completes a practice exercise.

In this learning activity you'll review physiological noise and complete an activity.

The learner will represent very large and very small numbers in engineering notation.

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 identify run-on sentences, comma splices, and sentence fragments.

In this learning activity you'll read key words that direct you to add, subtract, multiply, or divide.

Learners examine how five or six groups of electrons around a central atom cause the shape of the molecule to be trigonal bipyramidal, seesaw, T-shaped, linear, octahedral, square pyramidal, or square planar. Seven examples and three interactive questions are provided in this animated activity.

In this learning activity you'll solve systems of two linear equations in two unknowns by determinants.