This case study describes Jason, a child with an autism spectrum disorder and hyperlexia. Hyperlexia is a condition characterized by precocious single-word recognition skills and weaker comprehension skills. Jason demonstrated advanced writing skills and a strong general preference for learning materials presented visually rather than orally. His…

Theorem acquisition and deductive proof have always been core elements in the study and teaching of Euclidean geometry. The introduction of dynamic geometry environments, DGE (e.g., Cabri-Geometre, Geometer's Sketchpad), into classrooms in the past decade has posed a challenge to this praxis. Students can experiment through different dragging…

Student success in solving physics problems is related to the representational format of the problem. We study student representational competence in two large-lecture algebra-based introductory university physics courses with approximately 600 participants total. We examined student performance on homework problems given in four different…

An ethnographic study documented and analyzed the idiosyncratic symbols kindergarten children employ to encode their experiences in the domains of mathematics, music, and visual art, in order to identify any patterns in use and meaning. In the area of mathematics, children were given common objects and asked to sort them. Four categories of…

Since 1989, Channel One has broadcast a 10-minute newscast with two minutes of commercials. In exchange for receiving the Channel One broadcast, schools promise that 90% of the students will watch Channel One for 92% of the time; that each program must be watched in its entirety; that a show cannot be interrupted; and that teachers cannot turn the…

Two instructional variables, visual illustrations and visual mental imagery, were compared for their influences on learning and cognitive strategies. It was hypothesized, based on dual-code theory, that attempts to combine the two would facilitate learning. In a completely randomized factorial design, treatments consisted of 4 versions of a…

This paper examines children's responses to black and white illustrations in particular silhouettes. The study had two components; the first examined fifth graders' reactions to picture books using silhouette illustrations. The second part of the research analyzed students' responses when a dramatic context was used to view and respond to selected…

Research on adult memory for nonverbal representations has found a significant age-related decrement in performance. To investigate age differences in adult locational versus featural information in visual memory, 90 adult women (29 young women with a mean age of 21; 30 middle aged women with a mean age of 43; and 31 older women with a mean age of…

There is substantial evidence that prose-relevant pictures contribute to increased recall of prose materials, particularly if the subjects are young children. The purpose of this study was to investigate the contribution of prose-relevant pictures to immediate and delayed recall of written prose including science content when the subjects were…

A study explored how children respond to visuals and how a program of visual literacy enhances oral and written response to pictures. The first and fifth grades of two schools, one urban and one suburban, with different socioecomic groups of students, were chosen to participate in a 1-year program consisting of one visual literacy lesson per week.…

The purpose of this study was to survey teacher training programs for teachers of the deaf, to ascertain the extent to which American Sign Lanuage (ASL) and Manually Coded English (MCE) are taught in such programs, and to solicit the opinions of university personnel on the role of ASL and MCE in the language development of deaf children. The…

Twenty-four beginning readers participated in a study of the effectiveness of cued learning. The study was carried out in two phases--a letter-learning phase and a word-learning phase. The children were taught one at a time by the same teacher over a four-year period. During the word-learning phase, one fourth of the children used a vowels-only…

Visual processing of televised information was compared among 85 Japanese and 111 American boys and girls at the kindergarten and 4th-grade levels. The literatures on cognition and learning indicate that language and child rearing factors are more conducive to the development of iconic processing skills in Japanese children than in American…

A study examined the effects of pictorial and verbal illustrations on the initial learning and long term retention of written instruction. Subjects were eighth and ninth grade students randomly assigned to one of two text conditions (literal or analogous instructions) under one of four pictorial conditions (no picture, functional drawing,…

The influence on learning of visuals accompanying self-paced text materials was investigated for students of varied reading comprehension ability levels. The use of varied degrees of realism and media presentation formats in facilitating learning on specific tasks was examined in order to clarify previous research, and to provide specific…