Purplemath gives several examples which clearly show the process of completing the square to find the maximum and minimum solutions to a quadratic equation.

Find a quick, concise explanation of absolute value. Examples are included to help you understand this topic.

Find a quick, concise explanation of the names of large numbers all listed in a table. Other interesting tidbits of information about the names of larger numbers are also included. Names of decimals numbers are also included at the end of the page.

This tutorial shows you how to find x so two lines are parallel. [2:47]

Place value helps with determining the value of a digit for a given number. Watch this tutorial to see how it's done. [5:46]

Students learn the value of writing and art in science and engineering. They acquire vocabulary that is appropriate for explaining visual art and learn about visual design principles (contrast, alignment, repetition and proximity) and elements (lines, color, texture, shape, size, value and space) that are helpful when making visual aids. A PowerPoint(TM) presentation heightens students' awareness of the connection between art and engineering in order to improve the presentation of results, findings, concepts, information and prototype designs. Students also learn about the science and engineering research funding process that relies on effective proposal presentations, as well as some thermal conductivity / heat flow basics including the real-world example of a heat sink which prepares them for the associated activity in which they focus on creating diagrams to communicate their own collected experimental data.

A video writing prompt where students are asked to consider the question, 'What do you think society values more than money?' [0:38]

Define and organize your business's growth by writing a business plan. Time to complete: 45-90 minutes