The concept of paraphyly is defined and its importance in the teaching of evolution and taxonomy is discussed. Examples are included to illustrate this concept. A list of 14 references is provided. (CW)

Described is the sequence of topics, learning activities, materials and demonstrations for the course. It is stressed that students can learn these skills in less than 30 hours of instruction. (CW)

A model for the development of elementary and secondary instructional materials covering the broad range of intellectual skills is presented. The document is a result of a search to identify and evaluate existing instructional materials, classification schemes, models, hierarchies, and taxonomies of cognition. It is presented in four sections.…

Discussed is an extension of the conventional method for studying the organometallic chemistry of transition metals that may be useful to show how the various existing types of low-valence complexes can be constructed. This method allows students to design new types of complexes that may still be nonexistent. (CW)

Learning-disabled students deficient in classification and categorization require specific instruction in these skills. Use of a classification/categorization instructional model improved the questioning strategies of 60 learning-disabled students, aged 10 to 12. The use of similar models is discussed as a basis for instruction in science, social…

This revision of the "Basic/Essential Skills Taxonomy" exhibits changes based on use of the original taxonomy in the field. It features more precise definitions of the levels of key words and phrases, the deletion of some science items that ranged above basic skills, the combination of the language arts sections from the original two parts, and…