Learn some computer programming debugging tips. [5:50]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

In this lesson, students learn that sound is energy and has the ability to do work. Students discover that sound is produced by a vibration and they observe soundwaves and how they travel through mediums. They understand that sound can be absorbed, reflected or transmitted. Through associated activities, videos and a PowerPoint presentation led by the teacher, students further their exploration of sound through discussions in order to build background knowledge.

Learn all about adding, subtracting, multiplying, dividing, and converting decimals in this interactive tutorial.

Lessons include: (1) Introduction to Decimals. Get an introduction to decimals. (2) Adding and Subtracting Decimals. Learn how to add and subtract decimals. (3) Multiplying and Dividing Decimals. Learn how to multiply and divide decimals. (4) Converting Percentages, Decimals, and Fractions. Learn how to convert decimals, percentages, and fractions.

Practice converting decimals between standard form and expanded form. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

The Preamble to the Declaration of Independence is examined through Enlightenment philosopher, John Locke.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Practice decomposing fractions (breaking fractions into parts that can be added together). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Without the work of decomposers, living organisms would eventually use up all the raw materials in the environment, and dead organisms and wastes would pile up. This video segment from Interactive NOVA: "Earth" describes the role of decomposers in the living world. [3:06]

Video lesson explains how to find the measure of an angle using addition. [3:04]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Demonstrates how to break an irregular shape into three rectangles, find the individual areas, and then add them together. [3:36]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Demonstrates how to break an irregular shape into its parts, find the individual areas, and then add them together. [2:51]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Demonstrates how to find the area of a rectangular shape enclosed by another rectangle and with a third one inside it. [3:12]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Video explores how to find the measure of angles by adding or subtracting. [1:42]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

What causes the circulation of ocean waters that are too deep to be affected by wind? Find out how salinity and temperature drive the deep sea currents. This resource has several videos and an online quiz.

A narrated video tutorial defines two types of heat exchanges: heat of fusion and heat of vaporization. The content focuses on the relationship between heat energy either absorbed or released, and arrangement of particles. [3:42]

Sal discusses the conditions of matrix dimensions for which addition or multiplication are defined. Created by Sal Khan.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Find out how ionic compounds dissociate into positive and negative ions in an aqueous solution. [1:59]

Assess understanding of sets by matching each set notation with its corresponding set.

An introduction to pH and the pH scale. See examples of calculating pH of pure water, bleach, and orange juice. [11:38]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Students are asked how acceleration, mass, momentum and velocity are involved in mountain boarding. [0:32]

In this module, students learn about demand. Prices for most goods and services are determined in markets by what economists call supply and demand. Both sides – demand and supply – are needed to determine prices. This short module will use a fictitious chocolate market to help you better understand the demand side of market.

Prices for most goods and services are determined in markets by what economists call supply and demand. Both sides – demand and supply – are needed to determine prices.

This short module will use a fictitious chocolate market to help you better understand the demand side of market. This content from Econ Lowdown also features alignment to national Financial Literacy and/or Economics standards.