Describes investigation designed to determine if differences in socio-economic level and sex affect the development of strategies used by first grade students in attempting to solve a scientific problem involving simple machines. (JR)

This study was conducted to analyze the classification ability of middle class, culturally diverse, and visually impaired children after instruction in a Science Curriculum Improvement Study (SCIS) unit. The SCIS unit was effective in improving student abilities to classify. (PS)

Discusses the definition of the term weight'' in connection with fictitious forces occurring in accelerated frames of reference. (CC)

Outlines several exercises suitable for elementary science classes which may be used to illustrate objective experimental analysis. (JR)

Discusses the trends that have developed in recent years in the teaching of science in the elementary school. Outlines the changing role of teacher education in preparing teachers in the use of the new science curricula. (JR)

Studied the similarity of the astronomy portion in five science textbooks at the fourth through sixth grade levels by comparing students' responses to text authors' requirements. Concluded that the texts had more in common across grade levels than within grade levels. (CC)

Describes a systems model for designing environmental education programs in schools. Four major phases are identified which suggest planning experiences for environmental awareness, knowledge, and action. (PS)

Main reasons for not using recently developed curriculum materials in elementary schools include misunderstandings about their psychological bases, and lack of trained teachers and curriculum coordinators in school districts. Efforts should be directed to improve these conditions. (PS)

Describes a group project to study uses of water in a household situation. Project can be undertaken by students of different levels in schools. (PS)

An activity involving future elementary school teachers designed around inexpensive balloons which when launched contained postcards to determine the geographic location of the landing. The investigation is student-centered, involving unknown questions, and was conducted for enjoyment. (DF)

Science learning does not depend on textbook reading. First hand experiences should be provided to children. Supplementary readings and activities must accompany such experiences. (PS)