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## Resource Options

• ##### Free/Non-commercial Resources:
Displaying 1-20 of 6433 resources
• Resource Type: Website / HyperLink

## Air Pollution

Subjects: Experimentation and the Scientific Method, Current Science, Science
The Phoenix metropolitan area, like many large cities, has problems with air pollution at certain times of the year. You can do ...
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• Resource Type: Website / HyperLink

## Models for the Multiplication and Division of Fractions

Subjects: Multiplication & Division, Professional Development, Parts of a Whole (Fractions, Decimals & Percent), Mathematics and 2 additional..
This site uses visual models to better understand what is actually happening when students multiply and divide fractions. Using ...
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• Resource Type: Website / HyperLink

## September Open-Ended Math Problems: Measurement

Subjects: Current Science, English-Language Arts, Measurement & Tools, Area & Volume, Mathematics
In these three word problems, students are asked to explore real-world applications of measuring area and perimeter to design a ...
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• Resource Type: Website / HyperLink

## Area and Perimeter Word Problems and Open-Ended Questions

Subjects: Measurement & Tools, Area & Volume
This worksheet gives students practice finding the perimeter and area of rectangles and squares using real-world and mathematica...
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• Resource Type: Document

## Luminol Test

Subjects: Physics, Experimentation and the Scientific Method, Chemical Reactions & Stoichiometry, Current Science and 4 additional..
Visitors mix a solution containing luminol and copper with a fake blood solution. A chemical reaction between the luminol soluti...
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• Resource Type: Website / HyperLink

## Introduction to Real Analysis, by William F. Trench

Subjects: Experimentation and the Scientific Method, Professional Development, Calculus, Mathematics
This book was published previously by Pearson Education. This free edition is made available by the author in the hope that it w...
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• Resource Type: Website / HyperLink

## Cell Size & Scale

Subjects: Health Education, Health Science & Medical Technology, Cells, Structure and Function in Living Things
A nice Flash-based presentation of the relative size of very small objects: from coffee beans, grains of salt and rice, to HIV, ...
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• Resource Type: Website / HyperLink

## It's A Breeze: How Air Pressure Affects You

Subjects: Earth's Resources, Physics, Weather, Climate & Atmosphere, Gases and Kinetic Theory, Earth & Space Science
An explanation of air pressure and how it relates to weather is highlighted on this National Aeronautics and Space Administratio...
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• Resource Type: Website / HyperLink

## Rational Number Project Fraction Operations and Initial Decimal Ideas

Subjects: Multiplication & Division, Instructional Strategies, Professional Development, Parts of a Whole (Fractions, Decimals & Percent) and 4 additional..
Twenty-eight lesson plans make up this research-based fourth- through sixth-grade fraction and decimal curriculum, covering thro...
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• Resource Type: Website / HyperLink

## Multiply Fractions Jeopardy

Subjects: Multiplication & Division, Parts of a Whole (Fractions, Decimals & Percent), Mathematics, Number Sense
This interactive game for one or two players is presented Jeopardy-style with five categories: Multiply a Whole Number by a Frac...
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• Resource Type: Website / HyperLink

## Translating Word Problems into Equations

Subjects: Education, Child Development & Family Services, Inquiry & Problem Based Learning, Mathematics, Algebra & Functions, Equations and Inequalities
This site shows students how to translate word problems into equations. It gives seven steps, from reading the problem carefully...
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• Resource Type: Website / HyperLink

## A Giant Ginsu Shark from the Late Cretaceous Chalk of Kansas

Subjects: Earth's Resources, Life Sciences, Evolution and Adaptation
This site features a report on the historic 1891 discovery of a giant Cretaceous fossil shark (Cretoxyrhina) and the recent exca...
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• Resource Type: Website / HyperLink

## The Online Geoboard

Subjects: Measurement & Geometry, Measurement & Tools, Area & Volume, Mathematics
This applet simulates the use of an actual geoboard without the usual limitations of working with rubber bands. Geoboards are us...
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• Resource Type: Website / HyperLink

## Volume: Prisms, Cylinders, Pyramids, and Cones

Subjects: Professional Development, Measurement & Tools, Area & Volume, Mathematics
This lesson allows students to identify, measure, and solve problems using the volume of prisms, cylinders, pyramids, and cones....
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• Resource Type: Website / HyperLink

## Pringles Pinhole Camera

Subjects: Physics, Measurement & Geometry, Human Anatomy & Physiology, Chemistry and 3 additional..
An ordinary camera has a lens that makes an image on film. In a pinhole camera a small hole replaces the lens. This activity pro...
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• Resource Type: Website / HyperLink

## Examine an Animation of Hail Forming

Subjects: Earth's Resources, Weather, Climate & Atmosphere, Earth & Space Science
Teachers can use this animation to continue a study of clouds. In addition to asking students to construct their own explanation...
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• Resource Type: Website / HyperLink

## The Best Dam Simulation Ever

Subjects: Ecology & Ecosystems, Earth's Resources, Weather, Climate & Atmosphere, Engineering & Design and 4 additional..
This simulation explores the different consequences of water levels on the Columbia River in the Pacific Northwest. You play the...
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• Resource Type: Website / HyperLink

## Measurement: Which Unit of Length is Appropriate?

Subjects: Measurement & Geometry, English-Language Arts, Measurement & Tools, Unit Conversions, Mathematics
In this game, students are given an object such as a diving board or earthwork and are asked to select the appropriate unit for ...
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• Resource Type: Document

## Pizza Fractions

Subjects: Parts of a Whole (Fractions, Decimals & Percent), Number Sense
The classroom poster helps students understand fractions as parts of a whole by illustrating pizzas and fractions of pizzas. The...
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• Resource Type: Document