Cooking and tasting chicken soup in three different pots of very different size serves to demonstrate that it is the absolute sample size that matters the most in determining the accuracy of the findings of the poll, not the relative sample size, i.e. the size of the sample in relation to its population.

A simple synthesis of fluorescent carbon quantum dots from lemon juice is described to introduce advanced high-school students and undergraduate college students to nanoparticle synthesis and quantum dots. The synthesis is based on the carbonization of lemon juice using only a hot plate stirrer. Column chromatography is used to separate different…

Nanoparticle Zn[subscript 2x] Cu[subscript 1-x] In[subscript 1-x] S[subscript 2] is a promising and safer alternative to lead- and cadmium-containing quantum dots. Students prepare Zn[subscript 0.44] Cu[subscript 0.78] In[subscript 0.78] S[subscript 2] quantum dots in a one-pot synthesis without an inert atmosphere and investigate how the color,…

A procedure for one-pot preparation and characterization of silver 1D nanostructures is described. The main advantages of this synthetic approach are the simplicity and reproducibility, where the size of the final product can be controlled just by changing the reaction time. This experiment is designed as a laboratory introduction to colloidal…

Ubiquitous learning environments move learners out of a classroom and into the real world where learners engage in experiential and tangible learning involving instrumented physical things. Learners use peer-to-peer networks connecting learners, teachers, and a host of learning "things," such as instrumented pieces of art, flower pots,…

Objective: To identify predictors and moderators of outcome in the first Pediatric OCD Treatment Study (POTS I) among youth (N = 112) randomly assigned to sertraline, cognitive behavioral therapy (CBT), both sertraline and CBT (COMB), or a pill placebo. Method: Potential baseline predictors and moderators were identified by literature review. The…

Federal education officials will face a variety of obstacles in running a $650 million innovation fund, from an expected flood of applications and concern about favoritism in picking winners, to skepticism about the government's ability to drive innovative change in education. Meanwhile, the U.S. Department of Education--which last month offered…

The nearly $54-billion that Congress is directing to the states for education as part of the stimulus bill President Obama signed last week may stave off the worst budget cuts proposed for public colleges. But the money is unlikely to save institutions from the state budget ax entirely. And some states slated to get the most aid from that pot of…

The booklet presents developmental and basic skills learning activities for parents to use at home with their handicapped preschool children to better prepare the children for school related experiences. Under each activity are provided a statement of what the activity seeks to accomplish, a list of materials necessary for the activity, suggested…

Designed to help Iowa teachers implement the multicultural, nonsexist education mandated by state law, this resource book contains over 100 social studies activities for use in primary, intermediate, and junior high level classes. Exercises for each grade level focus on self, family, neighborhood, community, state, and nation. Primary grade group…

This book presents demographic data about a variety of U.S. public policies, social problems, and environmental issues. The issues and problems that the statistics illustrate (such as overflowing garbage dumps, homelessness, child poverty, and smog and water pollution) are connected with, and the consequences of, the expanding U.S. population. The…

As education engages in reform at all levels, an underlying theme of inclusive participation in reform has emerged. School renewal needs to be based on recognition of some unifying principles or a paradigm that will coherently direct renewal. The new paradigm is conceptualized in terms of a change from the homogeneous, melting-pot philosophy to…

This book provides a short course in the mysteries of seed structure, function, and development. Chapter 1, "Backgrounds, Hints, And Tips For Teachers And Parents," provides a basis for working with the mid-years student. Chapater 2, "Where Do I Start? What Do I Do?" provides procedural tips for science research. Chapter 3,…

Although often considered to be homogeneous, the Hispanic community contains many culturally diverse groups. In the United States today, those of Mexican heritage--by far the largest subgroup within the Hispanic community--can be further classified as Mexicano (undocumented resident), Mexican American, or Chicano. This classification system…

A sample of behavioral objectives and related test items that could be developed for content modules in Home Economics levels I and II, this book is intended to enable teachers to construct more valid and reliable test materials. Forty-eight one-page modules are presented, and opposite each module are listed two to seven specific behavioral…