Advertisers spend billions to market so-called educational products, services, and viewpoints to vulnerable young consumers. Budget constraints are forcing educators to accept ads and promotional materials. Several education and consumer-interest groups are developing guidelines for using commercial materials in schools. Consumers Union developed…

Educators can encourage students to question popular misconceptions about population growth. Identifies and counters 16 population myths based on unverifiable or imaginary relationships. Discusses interventions that have been shown to rapidly bring about reductions in desired family size and actual fertility. (LZ)

Describes the Saskatchewan (Canada) School Improvement Program and illustrates the type of data available from annual evaluation reports. Based on some incongruities identified among specified goals, improvement strategies, and reported success, the paper makes a case for specifying, from the outset, the assessment strategies and success…

Describes a method for capturing a real object and its real image on film. Explains many photography terms related to the experiment. (MVL)

Kinesthetic apparatus make physics learning experiences stimulating, memorable, and influential in helping students relate natural phenomena to the laws of physics. Describes a number of experiments and demonstrations that are possible with kinesthetic apparatus, which help eradicate some traditional student misconceptions and provide students…

Examines problems that occur with the vocabulary used in physics textbooks related to heat and energy. Discusses the concepts of thermal energy and temperature, conservation of energy laws, and the first law of thermodynamics. (MDH)

Although Jonathan Kozol is well-informed about choice program imperfections, schools of choice are superior to traditional schools. In places like East Harlem, school choice is helping transform youngsters from captive, disenfranchised malcontents to true students involved in their education. The challenge is to make every district school worthy…

Analysis of essays by first-year college students on humanities and social science subjects suggests that problems in style and structure stem from student misunderstandings of discipline-specific assumptions and conventions concerning critical analysis and "argument." Discussions and models can help students create new, academically…

An extension is described to a product-testing model to account for misinformation among subjects that would lead them to perform incorrectly on "pick one of two" tests. The model is applied to a data set of 367 subjects picking 1 of 2 colas. Misinformation does exist. (SLD)

Identifies and describes the problems students have with the concept of neutralization. Analysis of over 7,500 students' answers to test questions over neutralization showed that many students understand the concept in its original meaning. Students assumed that in any neutralization reaction a neutral solution is formed, even if a weak acid or…

Describes techniques that can help classroom science teachers promote enthusiasm for activities and retention of information among all students, including females and minority students. (JJK)

The media have sensationalized the problem presented by children exposed prenatally to cocaine. Many people erroneously assume that all cocaine-exposed children are severely affected; little can be done for them; and all their medical, behavioral, and learning problems are caused by cocaine exposure. Each child must be individually evaluated. Not…

Examines seventh grade life science students, tenth grade biology students, and college zoology students for understanding of the concept of diffusion. Describes the differences among the grade levels in sound or partial understanding, misconceptions, and no understanding. Discusses the effect of developmental level on understanding. (KR)

Reports the relationship between student characteristics and results of a test of misunderstanding administered to 49 suburban high school students enrolled in a New York State Regents Chemistry Class. A multiple regression analysis of data revealed that the best predictors of performance on the posttest misunderstanding test was the pretest score…

A mechanical analogy between the microscopic motion of a charged carrier in an ordinary resistor and the macroscopic motion of a ball falling along a slanted board covered with a lattice of nails is introduced. The Drude model is also introduced to include the case of inelastic collisions. Computer simulation of the motion is described. (KR)