## Resource Options

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

## Models for the Multiplication and Division of Fractions

Grades: PS/Pre-K to 12
Subjects: Multiplication & Division, Addition & Subtraction, Professional Development, Number Sense 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

Grades: PS/Pre-K to 12
Subjects: English-Language Arts, Measurement & Tools, Current Science, Mathematics, Area & Volume
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

Grades: TK/K to 6
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

Grades: TK/K to 12
Subjects: Atomic Structure, Experimentation and the Scientific Method, Chemical Reactions & Stoichiometry, Earth & Space 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

Grades: 9 to 12
Subjects: Experimentation and the Scientific Method, Calculus, Professional Development, 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

Grades: 4 to 12
Subjects: Structure and Function in Living Things, Health Science & Medical Technology, Cells, Health Education
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

Grades: TK/K to 9
Subjects: Earth's Resources, Gases and Kinetic Theory, Earth & Space Science, Weather, Climate & Atmosphere, Physics
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

## Multiply Fractions Jeopardy

Grades: PS/Pre-K to 12
Subjects: Multiplication & Division, Number Sense, Parts of a Whole (Fractions, Decimals & Percent), Mathematics
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

## 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

## Rational Number Project Fraction Operations and Initial Decimal Ideas

Grades: TK/K to 9
Subjects: Estimation & Rounding, Multiplication & Division, Addition & Subtraction, Professional Development 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

## The Online Geoboard

Grades: PS/Pre-K to 12
Subjects: Measurement & Geometry, Measurement & Tools, Mathematics, Area & Volume
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

## Translating Word Problems into Equations

Grades: PS/Pre-K to 12
Subjects: Inquiry & Problem Based Learning, Education, Child Development & Family Services, Equations and Inequalities, Algebra & Functions, Mathematics
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

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

Grades: PS/Pre-K to 12
Subjects: Professional Development, Measurement & Tools, Mathematics, Area & Volume
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

## Examine an Animation of Hail Forming

Grades: TK/K to 9
Subjects: Earth's Resources, Earth & Space Science, Weather, Climate & Atmosphere
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

## Pringles Pinhole Camera

Grades: TK/K to 12
Subjects: Structure and Function in Living Things, Measurement & Geometry, Earth & Space Science, Light, Sound & Other Waves 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: Document

## A Model Nuclear Power Plant Steam Turbine

Grades: 6 to 12
Subjects: Earth's Resources, Energy & Work, Measurement, Tools, and Data Analysis, Earth & Space Science and 5 additional..
In this activity (on pages 22-25 of PDF), learners build a model of a power plant using simple materials. The activity specifica...
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• Resource Type: Document

## Pizza Fractions

Grades: TK/K to 6
Subjects: Number Sense, Parts of a Whole (Fractions, Decimals & Percent)
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: Website / HyperLink

## Multiplying Fractions and Mixed Numbers

Grades: PS/Pre-K to 12
Subjects: Multiplication & Division, Professional Development, Number Sense, Parts of a Whole (Fractions, Decimals & Percent), Mathematics
This lesson is designed to reinforce skills associated with multiplying fractions and mixed numbers and allow students to visual...
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• Resource Type: Website / HyperLink

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

Grades: 6 to 12
Subjects: Measurement & Tools, Area & Volume
This lesson allows students to identify, measure, and solve problems using the volume of prisms, cylinders, pyramids, and cones....
Views: 0Favorites: 0
• Resource Type: Website / HyperLink

## What Does It Mean To Measure?

Grades: PS/Pre-K to 12
Subjects: Unit Conversions, Measurement & Tools, Mathematics, Area & Volume
In this session, students will begin to explore the questions "What can be measured?" and "What does it mean to measure somethin...
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