 Teach R Kids Math  Manri Systems
Math for elementary school children: online and offline math assignments and worksheets, ranging from simple counting for preschoolers to division and multiplication problems, and calendar and clock exercises for learning to tell time.
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 Telling Time in Different Time Zone (SMILE)  Borita Khim, Stockton Elementary School
A lesson for grade 4 designed to teach students to tell time in different time zones. From the "Miscellaneous" section of a collection of almost 200 single concept lessons by the Science and Mathematics Initiative for Learning Enhancement.
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 TestTubeGames  Andy Hall
Apps, Flash games, and simulations by "an escaped physics grad turned educator.... following his dream to make abstract physics concrete. And draw dinosaurs." Explore special relativity with Velocity Raptor, orbits and chaos with Gravity Sim, particle
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 Time Math  Education 4 Kids, Inc.
Time, at different levels of complexity (clock and calendar). You are presented with two times (in one of the formats selected) and asked to determine the difference between the two.
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 Time: Minutes and Hours  NASA Lewis Learning Technologies Project
Roberta left for her dancing class at 3:45 p.m. Her dancing school is a 15 minute walk from her house, and her class lasted one and one half hours. What time did she get home if she went straight home? A detailed answer is provided. From NASA's 9th Grade
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 TimeMonsters.com
Learn and practice telling analog time on a clock face with Doctor Tempo, an animated talking head who reads aloud, provides oral explanations, and otherwise lends a voice as you work through lessons and quizzes on interpreting hour hands and minute hands.
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 Time [sci.astro] (Astronomy Frequently Asked Questions)  Joseph Lazio
sci.astro is a newsgroup devoted to the discussion of the science of astronomy. This document summarize answers to questions that appear fairly regularly: Time, Calendars, and Terrestrial Phenomena; When is 02/01/04? or is there a standard way of writing
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 Time (SMILE)  Gracie Davenport, Spalding School
A lesson designed to teach physically Handicapped (EMH) students to tell time using a number chart; to demonstrate their ability to tell time by using a clock; and to use this skill to follow a daily schedule. From the Practical and Applied Math section
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 Time Zone Converter  David Svenson
Enter multiple cities, countries, or time zones, and this JavaScript plots them on a timeline that reveals their temporal differences. Slide the circled "host" marker through business hours, evening, past midnight, night, and morning.
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 Time Zonese  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about time zones, how they work, and why the former USSR have 11 time zones, while China has only one.
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 Troublesome Weather Trends  Ivars Peterson (MathTrek)
In the February Bulletin of the American Meteorological Society, Statistician Kevin J. Coakley of the National Institute of Standards and Technology in
Boulder, Colo. argues that ... daily temperatures don’t vary randomly. They generally tend to rise
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 Understanding 'Rate' Word Problems  Rick Garlikov
A conceptual explanation of doing various kinds of math "rate" problems (e.g., "distance/speed/time" problems, problems involving combining work done by different agents working at different rates of speed, quantity/proportion problems, etc.).
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 Unit Conversion and Day of the Week  Stephen Phillips
Convert between units of distance, area, volume, mass, speed, temperature, pressure, energy, power, or force online, or find the day of the week for a given date. There is also a list of conversion factors for various units, including units of radiation,
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 Water Puzzle  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
There are three glasses  3, 5, and 8 oz. The first two are empty, the last contains 8 oz of water. By pouring water from one glass to another make at least one of them contain exactly 4 oz of water. Investigation into this puzzle by experimentation,
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 Where Will the New Millennium Begin? (Math Chat)  Frank Morgan; Christian Science Monitor
Assuming the third millennium arrives on January 1, 2001, where on Earth should the celebration begin?
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 World of Words, Numbers, and Notes  Mike Keith
Mostly original diversions in the areas of mathematics, word play, and music, including a Cadaeic Cadenza, a long pi mnemonic. Also, Ailihphilia (literature and word play) and Scitamatics (mathematical diversions): the recreational study of words, numbers
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 World Population Counter  David Levine
A site that gives the world's population at the time of page access and at a time in the past or the future. If you wish to include the counter in one of your pages, instructions are included. Also includes clientpull for continuous updating of the global
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 World's Fastest Man  Ivars Peterson (MathTrek)
The 1998 edition of The Guinness Book of World Records features an article about Donovan Bailey, billed as the fastest man alive. The article begins: "Canadian Donovan Bailey rocketed into the record books when he set a new world mark of 9.84 seconds
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 Zone Out! (SMILE)  Willie Mae Wilson, Hartigan Elementary School
A lesson for grades K3 designed to review previously taught concepts of time, hours and 1/2 hours; and to help children with the concept of the four different standard time zones in the 48 states. From the "Miscellaneous" section of a collection of almost
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