Browse and Search the Library
Home : Math Topics : Arithmetic/Early : Patterns/Relatnshps : Ratio/Proportion

All Sites - 100 items found, showing 51 to 100
 Middle-School Math Through Applications Project (MMAP) - Institute for Research on Learning (IRL) Developers of curriculum materials and software designed to make math relevant, accessible and successful for middle-school students. While working on real-world multidisciplinary design problems, students grapple with mathematics from basic skills to ...more>> Mike's Math Club - The Milken Family Foundation A curriculum enrichment program, Mike's Math Club provides "handy hints" that promote mastery of such basics as double-digit multiplication, and math games that show elementary school students how to use logic and deductive reasoning to create strategies ...more>> The Millennium Sphere - The Cooper Union Jean Le Mee, Manuel A. Baez, and a team of their Cooper Union students submitted the Millennium Sphere for an international time-capsule competition sponsored by the New York Times Magazine. Watch a Shockwave animation of Ad Quadratum generation that ...more>> Mission: Possible (SMILE) - Mary Terhune, Rachel Carson School A lesson for grades 5-8, designed to teach students to convert scaled directions in inches to actual measurements in feet; correctly measure distances on an outdoor path; and enlarge a section of a map 5:1. From the Practical and Applied Math section ...more>> Mixture Problems - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about mixture problems, such as "How many liters of a 14 percent alcohol solution must be mixed with 20 liters of a 50 percent alcohol solution to get a 20 percent alcohol solution?" ...more>> The Nursing Files - Math - The Wayfarer Answers to nurses' questions about math, and formulas nurses are expected to know everyday. Learn about tables of equivalents, terms (measures of weight, volume, capacity, and length), dosages, ratio solutions, intravenous (IV) flow rates, percent solutions, ...more>> Online Math Applications - Leung, Jiang, Jiang, Chiu, Klopfer, Chiu; ThinkQuest Junior Activities, examples, problems, and online quizzes about math applied to real world situations in investing (a stock market simulation game), music (classical MIDI files), history (biographies and anecdotes), science (astronomy, computers, 'math in the ...more>> Oranges Project Page - Debbie Lewis; The Levering School, Philadelphia, PA An eighth grade project. Students use measurement to investigate the proportional relationship between the edible part of an orange and the peel or inedible part of a orange. They investigate different types of oranges such as navel, blood, and clementines ...more>> Pantagraph (Manipula Math) - International Education Software (IES) A pantograph is a drawing instrument for magnifying figures. Using the applet on this page, by moving the red point to trace an original figure you can automatically obtain a magnified figure with the pen at the blue point. ...more>> Paper Pool (SMILE) - Barbara Williams, Cook Elementary School A lesson designed to teach students to recognize rectangles whose sides have the same ratio; use the concept of common factor to find rectangles with the smallest area having a given ratio of sides; practice organizing data and looking for patterns; ...more>> Percents (SMILE) - Albert Michael, Robert Fulton Elementary School A lesson for grades 3-5 designed to teach students to rename ratios, decimals, and fractions as percents; change ratios into percents; weigh items on a scale; and multiply decimals. From the Practical and Applied Math section of a collection of almost ...more>> Perimeter Efficiency - William Blackwell Perimeter Efficiency, also known as Isoperimetric Inequalities, compares the actual perimeter of a shape with the circumference of the circle that would be required to enclose the same area. Since a circle will enclose any given area with the least amount ...more>> Philosophy of Science - David Banach A syllabus and collected resources for a course in the philosophy of science, including excerpts from various books. Topics include ancient Greek science and mathematics: the Golden Section, Pythagoras, infinity and continuity, and Plato and Aristotle, ...more>> Planetary Gear Simulator - Ryan Cahoon Dynamically solves for the number of planets and carrier speed, sun gear teeth, or ring gear teeth as you adjust the sliders to vary the other parameters. ...more>> Portion Distortion - National Institutes of Health (NIH) How do the portions served in today's fast food restaurants compare to those available 20 years ago? Take the "Portion Distortion" quizzes to learn exactly how much portions have "super sized," as well as the amount of physical activity required to burn ...more>> Powers of Ten - Eames Office An "adventure in magnitudes" that depicts the relative scale of the universe in factors of ten, originally written and directed by Ray Charles Eames in 1968. Starting at a picnic by a Chicago lake, every ten seconds this nine minute-long documentary short ...more>> Pre-Algebra Problem of the Week - Math Forum Math problems for students learning algebraic reasoning, identifying and applying patterns, ratio and proportion, and geometric ideas such as similarity. The goal is to challenge students with non-routine problems and encourage them to put their solutions ...more>> PRISM-NEO: Programming Remediation and Intervention for Students in Mathematics - Near North School District, Ontario, Canada Hands-on Geometer's Sketchpad manipulatives--plus "some things that cannot be done by hand!" The GSP files, as well as some QuickTime movies, are organized into Grade 7, Grade 8, and Grade 9 under the following topics: area, central tendency, equations, ...more>> The Private Eye - Kerry Ruef A hands-on, investigative teaching approach that attempts to stimulate the wonder of looking closely at the world, thinking by analogy, changing scale, and theorizing. It uses everyday objects, a jeweler's loupe, and a series of simple questions, which ...more>> Problem Pictures - Richard Phillips A CD-ROM of 184 attractive, unusual, or puzzling color photographs accompanied by activities for mathematics teaching. Images may defy explanation, motivate investigation, or inspire the viewer to answer a question. Other pictures may be the starting ...more>> Problem Solving - It Has to Begin with Noticing and Wondering - Hogan, Marie; and Alejandre, Suzanne Middle school teacher Marie Hogan observed as the Forum's Director of Professional Development modeled a full cycle of the Problems of the Week (PoWs) in Hogan's West Covina (CA) classroom. This co-authored article about their experience around the PoW ...more>> The Professor in a Syllabus: Elementary Algebra - Vision Alpha Products Self-instructional elementary algebra and arithmetic. Learn at your own pace from dozens of brief, animated, independent, self-teaching modules. Watch videos of TPIAS in action for distance learning, and its demo, before subscribing. Also available at ...more>> Ratio and Proportion - NASA Lewis Learning Technologies Project If the ratio of boys to girls is 5 to 8 and there are 40 girls, which proportion should you use to find out the number of boys? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>> Ratio and Proportion (SMILE) - Valesta Cobbs, John Fiske Elementary School A lesson designed to teach students to calculate ratios and proportions and compare and contrast group data with class data. From the Arithmetic section of a collection of almost 200 single concept lessons by the Science and Mathematics Initiative for ...more>> Ratio and Proportions (SMILE) - Barbara Trotter, Ole A. Thorp School A lesson designed to teach students to read and write proportions; identify the means and extremes of a proportion; solve proportions and problems using proportions; and to make a scale drawing. From the Practical and Applied Math section of a collection ...more>> Ratio - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about ratios, such as the difference between "rate" and "ratio" and "fraction"; "On a map, the scale states that 3 inches represent 125 miles...."; and "How can I write a ratio in three different ways?" ...more>> Ratio, Percent & Proportions (SMILE) - Rosalyn Winston, Walt Disney Magnet School A lesson on fractions as percents, designed to teach 7th graders to find the percent of a number; find percents using proportions; calculate the weight of objects (beads) in grams given specific percents; and verify the weight of objects (beads) on a ...more>> Ratios and Proportions (SMILE) - Mamie P. Scott, Edward Coles Elementary School A 7th grade lesson designed to review ratios and proportions and to teach students to determine the relation between individual height and reach; find equal ratios; solve word problems using ratios by trial and error; and practice finding pictorial expressions ...more>> Ratios (SMILE) - Richard Murray, Gage Park High School A lesson that uses scale models to teach students to examine models and compare their lengths numerically; to measure the models; and to calculate the length of the real size base when they know the scale of the model. From the Practical and Applied Math ...more>> Revision Universe - Arnav Rawat Downloadable worksheets with questions on cumulative frequency; line graphs; mean, mode, median and range; pie charts; curved graphs; expanding brackets; graphical solution of equations; ratio; trial and improvement; area and perimeter; density, mass ...more>> Rhythms and Ratios - Peter Appelbaum Rhythmic patterns are used to help the student act as apprentice mathematician and citizen mathematician (reading the newspaper, responsible consumerism, etc.). Rhythmic Ratios observations and introductions include the Basic Pattern Idea; Something to ...more>> Scale Drawing Project - Diane Coates A lesson plan: Choose a picture like a cartoon or a greeting card, etc. It is best not to choose a photograph. Decide what scale factor will enlarge your original drawing to an appropriate size for a standard size poster board (i.e. 1:3, 1:4, 1:5, 2:7 ...more>> The Scale of the Universe 2 - Cary and Michael Huang Use the scroll bar or computer mouse wheel to zoom in and out -- from quantum foam to charm quarks to "smallest thing visible to an optical microscope" to the thickness of paper all the way up to Cruithne, the depth of the Mariana Trench, Minecraft World, ...more>> Seeing and Learning Astronomy and Cosmology Through the Lens of Music - Sloan Edward Williams III - Yale-New Haven Teachers Institute Exploring music, astronomy and cosmology, starting with the historical roots; the Pythagoreans in particular contributed profoundly to the development of Western Music by discovering two facts: first, that the sound caused by the string depends on the ...more>> Self-Instructional Mathematics Tutorials - Center for Support of Teaching and Learning, Syracuse University Self-instructional material for university students of chemistry, economics, political science and/or psychology. Math topics include fractions, decimals, percents, ratios and proportions, tables, bar graphs, circle graphs, the visual display of information, ...more>> Similarity - Project MATHEMATICS!, California Institute of Technology A videotape-and-workbook module that explores a basic topic in high school mathematics in ways that cannot be done at the chalkboard or in a textbook. Scaling multiplies lengths by the same factor and produces a similar figure. It preserves angles and ...more>> Similarity (SMILE) - Natalia Kee, Harlan Community Academy High School A lesson designed to teach students to discover the factor of proportionality in similar polygons and relate this factor to the perimeters and areas of similar polygons. From the Geometry and Measurement section of a collection of almost 200 single concept ...more>> SolveMe Mobiles - Education Development Center, Inc. (EDC) Colorful interactive hanging sculpture puzzles that challenge pre-algebra and algebra students to balance equations by solving for unknown values. Freely solve over a hundred pre-hung mobiles or build your own and then contribute them to the SolveMe community. ...more>> The STEM Collaborative - Maryland Public Television, Arkansas Educational Television Network, Alabama Public Television, and Kentucky Educational Television The four online adventures Scale City, ProportionLand, Math by Design (architecture), and Rock 'n Roll Road Trip (music) engage students to use geometry, algebra, and proportional reasoning for skateboard ramps, cooking, amusement park roller coasters ...more>> syzygy-matrix: solutions for small problems in the classroom - Jeff LeMieux Generate cryptograms, division worksheets, fraction worksheets, and proportion problems. Select the length of dividend, denominators specified by the Washington State Standards for Grade 7, number of problems, and more. The worksheet maker prints solutions. ...more>> Test-Prep Mathematics Table of Contents - Pamela Cohen, Walter Antoniotti Free practice problems worksheets in whole numbers; fractions; decimals, ratios, rates, proportions, and percentages; exponents, roots, algebra, and geometry; using formulas to solve problems; multi-step word problems; and graphs, signed numbers, statistics, ...more>> TheMathPage: Skill in Arithmetic - Lawrence Spector; Borough of Manhattan Community College, CUNY A complete course in arithmetic: reading and writing whole numbers and decimals; addition, subtraction, multiplication, and division. Features the verbal, non-algebraic theory of ratio and proportion, leading to fractions and percent. The usual written ...more>> There Is No Place Like SPACE - Sharon White Junior high students explore living in space through this interdisciplinary (art, language arts, math, reading, social studies and science) project. Site contains a summary, scenario, student pages, and Internet links, as well as a list of standards addressed. ...more>> Tom Snyder Productions Software for teachers who love to teach. Company information, free demos, catalog; free CD sampler; product descriptions, online classroom activities, professional development (including public seminars and on-site workshops), Technology Newsletter, and ...more>> Triangles and Pyramids: Playing Math! - Hollis Easter A "teachable" on the construction of free-standing pyramids made "by folding a single piece of paper, with only a single piece of tape to hold them together...." This blog post goes on to include photos of a net, diagrams, and "things to investigate": ...more>> The True Size Of ... - Talmage, James; Maneice, Damon Putting the Mercator projection into perspective, one place at a time. Search the world for names of countries, provinces, and U.S. states by name, then drag outlines of them around to compare the actual areas of the land masses. ...more>> Using Variables And Ratios To Get You In The Right Gear (SMILE) - George K. Smith, Dunbar Vocational High School A lesson designed to teach students to apply the concepts of variable and ratio in everyday situations; determine the gear ratios and gears for a 12-speed bicycle; and write a computer program that will determine gears using the bubble sort technique. ...more>> WebMath: Instant Solutions to Math Problems Instant solutions to math problems: look over the various links on the home page until you find a topic that seems to describe the math problem you're working on. Select a link then another and you will be presented with a blank form into which you can ...more>> Working with Fractions Using Pattern Blocks - Margo Lynn Mankus The objective of What's My Number? is to name the size of an object given the size of 1 unit. Materials include pattern blocks cutouts, a pattern block grid, a pattern block Java applet, and links to other pattern block activities elsewhere on the web. ...more>> Would You Rather? - John Stevens Choose between the two apparently equivalent choices — and justify your selection with reasoning: "Would you rather ... run the circumference of the circle OR perimeter of the rectangle? be given 100 grams of new nickels OR 220 grams of new dimes? ...more>>
Page: [<prev]  1  2

Search for these keywords:

Click only once for faster results:

all keywords, in any order at least one, that exact phrase
parts of words whole words

Power Search

Home || The Math Library || Quick Reference || Search || Help

© 1994- The Math Forum at NCTM. All rights reserved.
http://mathforum.org/