Working memory capacity has been shown to be an important factor in controlling understanding in the sciences. Attitudes related to studies in the sciences are also known to be important in relation to success in learning. It might be argued that if working memory capacity is a rate controlling feature of learning and success in understanding…

One method of evaluating comprehension and language growth consists of analyzing the oral or written answers to questions about stories read to or by students and about visual representations. The method is applicable to various content areas at all levels of instruction. The T-unit or communication unit, the linguistic unit that cannot be further…

Following a brief consideration of the meanings of the terms "measurement" and "understanding," the first section of this yearbook is devoted to the theoretical aspects of understanding in elementary and secondary school students, including the importance of teaching for understanding, the nature of understanding, and nine general principles…

To what extent can photographic readability be formalized for use as a criterion in the evaluation of instructional materials? The purpose of this study was to develop and pilot test a readability index for evaluating photographic illustrations in instructional materials. The index uses an interdisciplinary battery of methods adapted from the…