[Free Registration/Login Required] This is a five-page PDF fiction passage entitled "Amy's Halloween Secret" followed by 10 reading comprehension questions. Click on double arrow on the top right to download, print, or make full screen....

[Free Registration/Login Required] This PDF passage "If Rocks Could Talk!: Obsidian" from the American Museum of Natural History features an interview with an igneous rock named Obsidian. It is part of a paired text with "If Rocks Could...

[Free Registration/Login Required] This two-page PDF nonfiction passage entitled "Volcanoes: Magma Rising: Studying Volcanoes" discusses how they study volcanoes to learn how they work. It is part of Paired Texts: "Volcanoes: Magma...

[Free Registration/Login Required] This five-page PDF nonfiction passage "Nefertari's Tomb" by Alizah Salario discusses how the tombs of the Ancient Egyptians provide information about their culture. It is followed by 10 comprehension...

Find a quick, concise explanation of the properties of inequalities. Examples are given and clearly explained for each of the properties.

Find a quick, concise but complete explanation of how to simplify radical expressions. Examples are given and clearly explained.

This module provides strategies to use with informational text. Teachers will explicitly teach students about graphic organizers to use before reading informtational texts.

Video presentation on combinatorics, or the "mathematics of counting complicated configurations." Offers several examples of combinatorics as used in real world situations and professions. [28:26]

This search provided by the United States Postal Service will help you determine what zip code is associated with what city and vice versa.

This interactive timeline highlights the main events of the swine flu, both worldwide and specifically U.S., from its first appearance in March 2009 to the present. An excellent visual to help anyone gain a better understanding of this...

Noted technology educator Kathy Schrock provides an alphabetical list of qualities to evaluate in judging websites. She provides example websites to look at for each quality. In addition, she gives a list of websites to use when...

Use this site to learn how to use a calculator and apply math to real life situations with this interactive lesson! You will receive immediate feedback for your answers to all the questions.

Use this site to learn about percents, and how they relate to decimals and fractions with this interactive online lesson. You will learn about percents, convert percents into fractions and decimals, and find equal parts of a whole.

"Why is any number raised to the zero power equal to one?" A good question and an even better answer

Individual or classroom activity helps students understand the solar system because they can visualize it. Extension resources are included.

A wonderful collection of 650 writing prompts organized into categories and issues, e.g., role models, family, memories, race, gender, sexuality, social media, etc. Each prompt is linked to an article on that topic. W.9-10.10 Write...

This site presents the budgeting process through a series of steps. This first page describes the first step, creating a spending plan of estimated expenses. This page also has a link to a downloadable spending plan that requires Acrobat...

Test for your hidden bias. Even though we believe we see and treat people as equals, hidden biases may still influence our perceptions and actions. Each test takes about five minutes, and your privacy is protected.

Teachers can start this project at any time and no registration is required. Students collect data about water usage for themselves, their homes and their class. They analyze it, make predictions about it, and submit the data to the...

Students conduct an experiment to determine the relationship between the speed of a wooden toy car at the bottom of an incline and the height at which it is released. They observe how the photogate-based speedometer instrument "clocks"...

Working as if they are engineers who work for (the hypothetical) Build-a-Toy Workshop company, students apply their imaginations and the engineering design process to design and build prototype toys with moving parts. They set up...

Students learn about the process of reverse engineering and how this technique is used to improve upon technology. Students analyze push-toys and draw diagrams of the predicted mechanisms inside the toys. Then, they disassemble the toys...

Students learn how engineers harness the energy of the wind to produce power by following the engineering design process as they prototype two types of wind turbines and test to see which works best. Students also learn how engineers...

NASA-sponsored coverage and research on a range of topics related to space exploration -- flying weather stations, comets, first steps on the Moon, and other space-related topics -- are presented in age-appropriate activities, lesson...