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In 1927, responding to the seemingly overpowering claims of advertisers and mass marketers, engineer Frederick Schlink and economist Stuart Chase published Your Money's Worth, which argued for an "extension of the principle of buying goods according to impartial scientific tests rather than according to the fanfare and triumphs of higher salesmanship." Your Money's Worth became an instant best-seller, and the authors organized Consumers' Research, a testing bureau that provided information and published product tests in a new magazine, Consumers' Research Bulletin. The 1929 stock market crash heightened suspicion of consumer capitalism, and the magazine had 42,000 subscribers by 1932. In 1933, Schlink and Arthur Kallet (executive secretary of Consumers' Research) published 100,000,000 Guinea Pigs: Dangers in Everyday Foods, Drugs, and Cosmetics. The book struck a responsive chord in depression-era America--it went through thirteen printings in its first six months and became one of the best-selling books of the decade. The book's first chapter ("The Great American Guinea Pig"), gave a flavor of their vigorous arguments.
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Humanities
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Primary,
Secondary,
Post-secondary
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Many Pasts (CHNM/ASHP)
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Compilation of learning resources related to the 2011 Earthquake in Japan. Includes interactive timelines, visualizations, and lessons on tsunamis, earthquakes, and nuclear energy.
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Science and Technology
- Grade Level:
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Primary,
Post-secondary
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Industrial and Agricultural Impacts
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Edudemic
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As part of my presentation for the K12 Online Conference I am publishing this 50 page document. It is a combination of the 50+ RSS Ideas for Educators document and the Teaching Hacks wiki. It is geared towards an introduction to RSS, but carries on a bit further into topics such as tagging, social bookmarking, wikis and more. Link is to a pdf document.
- Subject:
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Science and Technology
- Grade Level:
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Primary,
Secondary
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Op het einde van deze les kun je een korte tekst schrijven met de 100 woorden die gemiddeld het meest voorkomen in Engelse teksten.
- Subject:
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Humanities
- Grade Level:
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Post-secondary
- Collection:
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KlasCement
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What does 100 look like? Sound like? Feel like? In this video from Curious George, explore the many ways to measure 100 things.
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Science and Technology
- Grade Level:
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Primary
- Collection:
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Teachers' Domain
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Resources to mark the 100th day of school with math activities. Challenge students to generate 100 different ways to represent the number 100. Students will easily generate 99 + 1 and 50 + 50, but encourage them to think out of the box. Challenge them to include examples from all of the NCTM Standards strands: number sense, numerical operations, geometry, measurement, algebra, patterns, data analysis, probability, discrete math, Create a class list to record the best entries. Some teachers write 100 in big bubble numeral style and then record the entries inside the numerals.
- Subject:
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Mathematics and Statistics
- Grade Level:
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Primary
- Collection:
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Mathwire
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A garden that is kinder to the earth can be achieved through the selection of products and tools that are sustainably manufactured or given new life through recycling. It's never been so easy to build a garden that's green from the moment you plunge that spade into the soil. Here are 10 garden products to get you started on a path to an earth-friendly garden.
- Subject:
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Science and Technology
- Grade Level:
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Post-secondary
- SubTopics:
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Waste and Recycling,
Soil and Land
- Collection:
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Children and Nature Network
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Students will explore multi-digit numbers and the relationship between ones, tens and hundreds; a digit in one place is 10x the digit in the place to its right. Students will use their bodies to represent digits in multi-digit numbers up to the hundredths place and compare these numbers using <, =, >. Students will use their bodies as multi-digit numbers to add and subtract.
- Subject:
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Mathematics and Statistics
- Grade Level:
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Primary
- Collection:
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Open Author Resources
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In this video segment from Cyberchase, the CyberSquad replaces a piece of track to get the Madre Bonita Express to the Mother's Day harvest.
- Subject:
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Mathematics and Statistics
- Grade Level:
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Primary,
Secondary
- Collection:
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Teachers' Domain
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What effect, if any, does increasing the length of the congruent sides of an isosceles triangle have on the expression for calculating perimeter?
- Subject:
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Mathematics and Statistics
- Grade Level:
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Secondary,
Post-secondary
- Collection:
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GeoGebraTube
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How does a change in each variable affect the value of the expression?
- Subject:
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Mathematics and Statistics
- Grade Level:
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Secondary,
Post-secondary
- Collection:
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GeoGebraTube
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Create an equation to determine the amount of time it will take two brothers to meet each other.
- Subject:
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Mathematics and Statistics
- Grade Level:
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Secondary,
Post-secondary
- Collection:
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GeoGebraTube
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Students will begin exploring changes to the coordinates of the vertices as the figure is rotated.
- Subject:
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Mathematics and Statistics
- Grade Level:
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Secondary,
Post-secondary
- Collection:
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GeoGebraTube
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Students are to compare ratios of opp/hyp and adj/hyp to determine the trig ratios.
- Subject:
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Mathematics and Statistics
- Grade Level:
-
Secondary,
Post-secondary
- Collection:
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GeoGebraTube
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The human brain is in many ways a fantastic and enigmatic part of the body, and only within the past few decades have scientists begun to understand its many nooks and crannies. When the brain is beset with any number of neurological conditions, it changes in a myriad of ways. This website, provided by the Alzheimer's Association, provides an interactive tour of the brain of a person with Alzheimer's disease. The tour contains sixteen interactive slides, and each slide contains informative text that provides background material. The first seven slides contain a bit of background information about the brain, such as what the brain is composed of and how it functions.
- Subject:
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Science and Technology
- Grade Level:
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Secondary,
Post-secondary
- Collection:
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Individual Authors
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