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**1-20**of**6433**resources## Models for the Multiplication and Division of Fractions

Grades: PS/Pre-K to 12Subjects: Addition & Subtraction, Mathematics, Parts of a Whole (Fractions, Decimals & Percent), Multiplication & Division and 2 additional..This site uses visual models to better understand what is actually happening when students multiply and divide fractions. Using ...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## September Open-Ended Math Problems: Measurement

Grades: PS/Pre-K to 12Subjects: Area & Volume, Measurement & Tools, Current Science, Mathematics, English-Language ArtsIn these three word problems, students are asked to explore real-world applications of measuring area and perimeter to design a ...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Area and Perimeter Word Problems and Open-Ended Questions

Grades: TK/K to 6Subjects: Area & Volume, Measurement & ToolsThis worksheet gives students practice finding the perimeter and area of rectangles and squares using real-world and mathematica...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Luminol Test

Grades: TK/K to 12Subjects: Current Science, Chemistry, Atomic Structure, Light, Sound & Other Waves and 4 additional..Visitors mix a solution containing luminol and copper with a fake blood solution. A chemical reaction between the luminol soluti...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Introduction to Real Analysis, by William F. Trench

Grades: 9 to 12Subjects: Mathematics, Calculus, Professional Development, Experimentation and the Scientific MethodThis book was published previously by Pearson Education. This free edition is made available by the author in the hope that it w...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Cell Size & Scale

Grades: 4 to 12Subjects: Health Education, Structure and Function in Living Things, Cells, Health Science & Medical TechnologyA nice Flash-based presentation of the relative size of very small objects: from coffee beans, grains of salt and rice, to HIV, ...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## It's A Breeze: How Air Pressure Affects You

Grades: TK/K to 9Subjects: Gases and Kinetic Theory, Weather, Climate & Atmosphere, Earth's Resources, Earth & Space Science, PhysicsAn explanation of air pressure and how it relates to weather is highlighted on this National Aeronautics and Space Administratio...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Multiply Fractions Jeopardy

Grades: PS/Pre-K to 12Subjects: Mathematics, Parts of a Whole (Fractions, Decimals & Percent), Multiplication & Division, Number SenseThis interactive game for one or two players is presented Jeopardy-style with five categories: Multiply a Whole Number by a Frac...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## A Giant Ginsu Shark from the Late Cretaceous Chalk of Kansas

Grades: No grades selected.Subjects: Earth's Resources, Evolution and Adaptation, Life SciencesThis site features a report on the historic 1891 discovery of a giant Cretaceous fossil shark (Cretoxyrhina) and the recent exca...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Rational Number Project Fraction Operations and Initial Decimal Ideas

Grades: TK/K to 9Subjects: Estimation & Rounding, Addition & Subtraction, Mathematics, Instructional Strategies and 4 additional..Twenty-eight lesson plans make up this research-based fourth- through sixth-grade fraction and decimal curriculum, covering thro...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Translating Word Problems into Equations

Grades: PS/Pre-K to 12Subjects: Algebra & Functions, Mathematics, Education, Child Development & Family Services, Equations and Inequalities, Inquiry & Problem Based LearningThis site shows students how to translate word problems into equations. It gives seven steps, from reading the problem carefully...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## The Online Geoboard

Grades: PS/Pre-K to 12Subjects: Area & Volume, Measurement & Tools, Mathematics, Measurement & GeometryThis applet simulates the use of an actual geoboard without the usual limitations of working with rubber bands. Geoboards are us...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Volume: Prisms, Cylinders, Pyramids, and Cones

Grades: PS/Pre-K to 12Subjects: Area & Volume, Measurement & Tools, Mathematics, Professional DevelopmentThis lesson allows students to identify, measure, and solve problems using the volume of prisms, cylinders, pyramids, and cones....Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Examine an Animation of Hail Forming

Grades: TK/K to 9Subjects: Weather, Climate & Atmosphere, Earth's Resources, Earth & Space ScienceTeachers can use this animation to continue a study of clouds. In addition to asking students to construct their own explanation...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Pringles Pinhole Camera

Grades: TK/K to 12Subjects: Human Anatomy & Physiology, Chemistry, Light, Sound & Other Waves, Structure and Function in Living Things 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...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## A Model Nuclear Power Plant Steam Turbine

Grades: 6 to 12Subjects: Ecology & Ecosystems, Measurement, Tools, and Data Analysis, Engineering & Design, Chemistry 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...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Pizza Fractions

Grades: TK/K to 6Subjects: Parts of a Whole (Fractions, Decimals & Percent), Number SenseThe classroom poster helps students understand fractions as parts of a whole by illustrating pizzas and fractions of pizzas. The...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Multiplying Fractions and Mixed Numbers

Grades: PS/Pre-K to 12Subjects: Mathematics, Parts of a Whole (Fractions, Decimals & Percent), Multiplication & Division, Professional Development, Number SenseThis lesson is designed to reinforce skills associated with multiplying fractions and mixed numbers and allow students to visual...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Volume: Prisms, Cylinders, Pyramids, and Cones

Grades: 6 to 12Subjects: Area & Volume, Measurement & ToolsThis lesson allows students to identify, measure, and solve problems using the volume of prisms, cylinders, pyramids, and cones....Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Air Pollution

Grades: TK/K to 6Subjects: Current Science, Science, Experimentation and the Scientific MethodThe Phoenix metropolitan area, like many large cities, has problems with air pollution at certain times of the year. You can do ...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0