In this learning activity you'll simplify square roots involving the product of a numeric and variable term.

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

In this animated activity, learners read about the properties of a square and its components. They then work practice problems to find the perimeter and area of squares.

Learners follow step-by-step instructions for calculating the square root of a number using the TI-83 Plus scientific calculator. Steps for determining impedance are also shown.

Learners view the steps for determining the square root of a complex number in Excel.

Students read step-by-step instructions for determining the square root of a number using the TI-86 calculator.

Learners study the properties of a regular square pyramid and use geometric formulas to find volume and surface area.

Students read about the three categories of interest groups: Economic, grass roots and community-based, and civil and constitutional rights.

In this learning activity you'll practice verb tenses in the present, present perfect, past, and past perfect tenses.

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 practice entering the plural present, plural present perfect, past, and past perfect forms of verbs.

In this learning activity you'll discover how visual perception of size is influenced by what's surrounding an image.

In this learning activity you'll discover how visual perception of size is influenced by what's surrounding an image.

In this interactive object, part 3 in a series, learners follow the steps of the “mathemagician” to examine four numerical curiosities: What’s Special About 1089, Perfect Squares: 1089 and 9801, The Mathematical Significance of 1776, and The Calculator Number Game. The learner will also study six number patterns and look at one remarkable table. Immediate feedback is provided.

In this video, we’ll go over the necessary steps to square the toolhead on a Bridgeport mill.

In this interactive game, learners review emergency medications. For every right answer, the learner earns a square on the tic-tac-toe board while playing against the computer or another contestant.

Students view an enlarged, colorful depiction of the contents of an average square inch of skin.

This video will guide you through the process of squaring a part on a milling machine.

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 interactive learning object, learners read how to compensate for a part not mounted perfectly parallel to the machine axis.