Beginning teachers of scientific technical writing often have little background knowledge in the sciences; thus, they may encounter difficulty in dealing with technical reports. To achieve clear explanations of the effects of scientific experiments, scientific writers need to know the following general principles: (1) the function of all the…

THE PRINCIPLES OF ATOMIC STRUCTURE WHICH ARE STRESSED ARE THAT ATOMS ARE MADE UP OF A NUCLEUS WITH A POSITIVE CHARGE, SURROUNDED BY ELECTRONS WITH A NEGATIVE CHARGE, AND THAT THERE IS NO CHANGE IN THE ATOM WHEN THE POSITIVE AND NEGATIVE CHARGES ARE EQUAL. EXPERIMENTS ILLUSTRATE THAT CURRENT ELECTRICITY IS ACTUALLY ELECTRONS IN MOTION, THAT THERE…

A SCIENCE UNIT ON ORGANIZATION IS PRESENTED. THE OBSERVATION AND CATEGORIZATION OF LIVING THINGS ARE EMPHASIZED. STUDENTS ARE REQUIRED TO GATHER SPECIMENS OF PLANT AND ANIMAL LIFE AND TO LOOK FOR DIFFERENCES AND SIMILARITIES AMONG THEM. THIS COLLECTING AND GROSS SORTING OF SPECIMENS ARE ENCOURAGED THROUGH LABORATORY EXERCISES. DATA SHEETS ARE USED…

TWO HYPOTHESES RELATED TO HYPOTHESIS INTERFERENCE IN CONCEPT PERFORMANCE OF YOUNG CHILDREN WERE TESTED/ (1) STUDENTS MAKE MORE CLASSIFICATIONS WHEN STIMULUS OBJECTS ARE PRESENTED SEQUENTIALLY THAN WHEN STIMULUS OBJECTS ARE PRESENTED SIMULTANEOUSLY, AND (2) REDUCING THE NUMBER OF STIMULUS OBJECTS INCREASES CLASSIFICATION SPEED. MATCHED ON THE BASIS…

The beta coefficient of an intermediate variable in a causal direction remains relatively constant as other system variables are introduced and controlled in stepped regression, whereas that in the acausal direction changes noticeably. Normalized random numbers (200x5) were generated and substituted in interdependent equations to produce five…

This book is devoted to describing, not explaining or theorizing about effective learning. One chapter relates numerous incidents involving very young children, to illustrate various learning styles and ways in which experimentation contributes to learning. Other chapters discuss children's talk, reading, sports, and art and math. The final…

This material, developed for use in secondary schools, is a programmed-type learning package consisting of an "Instructor's Manual", a "Student's Introduction", and a "Laboratory Manual". The general goal of the program is to teach students to distinguish between reliable and unreliable information. The "Laboratory Manual" contains nine simple…

This report on OEO's educational voucher experiment sets forth the structure of the OEO proposals and the reasons for the experiment, outlines its advantages, and discusses criticisms of educational vouchers. According to the author, this voucher system makes schools more accountable to parents, and provides a wider range of choices for the poor,…

This report provides an overview of educational vouchers. The paper outlines a history of the development of the educational voucher idea, examines the OEO proposed educational voucher experiment, and discusses advantages and disadvantages of the system. A summary of State voucher plans is also provided. A related document is EA 003 418. (JF)

Pinel is a small, nongraded school for children aged 5-14 in Martinez, California. In 1969, it received a grant to bring together white suburban children and those from minority areas. This was a program of interracial contact primarily for the benefit of white children. It took place over two five-week summer sessions and Thursdays during the…

This pair of papers share the focus of determining how differential exposure to information influences attitude formation and change. The first paper deals with the question of how differing amounts of information (set size) affect attitude formation. Set size effects in impression formation have not been obtained when examined in between-subjects…

A description of an experiment in which the results seemed to indicate the spaced treatment was most effective, and all three review treatments were more effective than viewing the program without review segments. (Author/HB)