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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, Number Sense, Mathematics, Professional Development 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: Measurement & Tools, English-Language Arts, Area & Volume, Mathematics, Current ScienceIn 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: Measurement & Tools, Area & VolumeThis 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: Light, Sound & Other Waves, Earth & Space Science, Physics, Chemical Reactions & Stoichiometry 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: Calculus, Experimentation and the Scientific Method, Mathematics, Professional DevelopmentThis 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 Science & Medical Technology, Health Education, Cells, Structure and Function in Living ThingsA 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## Multiply Fractions Jeopardy

Grades: PS/Pre-K to 12Subjects: Number Sense, Mathematics, Parts of a Whole (Fractions, Decimals & Percent), Multiplication & DivisionThis 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## It's A Breeze: How Air Pressure Affects You

Grades: TK/K to 9Subjects: Earth & Space Science, Physics, Gases and Kinetic Theory, Earth's Resources, Weather, Climate & AtmosphereAn 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## A Giant Ginsu Shark from the Late Cretaceous Chalk of Kansas

Grades: No grades selected.Subjects: Life Sciences, Evolution and Adaptation, Earth's ResourcesThis 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: Addition & Subtraction, Number Sense, Estimation & Rounding, 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## Volume: Prisms, Cylinders, Pyramids, and Cones

Grades: PS/Pre-K to 12Subjects: Measurement & Tools, Area & Volume, 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: Earth & Space Science, Earth's Resources, Weather, Climate & AtmosphereTeachers 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## The Online Geoboard

Grades: PS/Pre-K to 12Subjects: Measurement & Tools, Measurement & Geometry, Area & Volume, MathematicsThis 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## Translating Word Problems into Equations

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

Grades: TK/K to 12Subjects: Human Anatomy & Physiology, Light, Sound & Other Waves, Structure and Function in Living Things, Earth & Space Science 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, Engineering & Design, Energy & Work, 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...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Pizza Fractions

Grades: TK/K to 6Subjects: 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...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0## Volume: Prisms, Cylinders, Pyramids, and Cones

Grades: 6 to 12Subjects: Measurement & Tools, Area & VolumeThis 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## Multiplying Fractions and Mixed Numbers

Grades: PS/Pre-K to 12Subjects: Number Sense, Mathematics, Professional Development, Parts of a Whole (Fractions, Decimals & Percent), Multiplication & DivisionThis 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## Landforms: Face of the Earth

Grades: TK/K to 9Subjects: Geology & the Dynamic Earth, Earth & Space Science, Earth's Resources, Weather, Climate & AtmosphereA module on each of the following landforms: Valleys,Plateaus, Mountains, Plains, Hills, Loess, and Glaciers. Each landform is p...Contributor: National Science Digital Library (NSDL)Views: 0Favorites: 0