Reviews the use of signatures to improve the performance of text searching and considers the use of signature trees to further accelerate text searching. Based on the analysis of experimental results, it is concluded that the improvement in text searching performance using signature trees outweighs the increase in required storage. (12 references)…

Discusses the relationship between the world of mathematics and the real world through a consideration of Mitsumasa Anno's exploration of the two different yet connected worlds in five picture books. (SR)

Presents a divisibility problem and how a class of students discussed the problem and determined a plan to solve it. (ASK)

To move information toward knowledge and activity toward mastery, learners must play with ideas, use them, and make them their own. Methods for achieving mastery include interdisciplinary approaches that require deep thinking, story telling, and reflection. (Contains 20 references.) (SK)

The author proposes a neural-network-based explanation of how a brain might acquire intuitive expertise. The explanation is intended merely to be suggestive and lacks many complexities found in even lower animal brains. Yet significantly, even this simplified brain model is capable of explaining the acquisition of simple skills without developing…

An approach to learning chemical facts that starts with the periodic table and depends primarily on recognizing and completing patterns and following a few simple rules is described. This approach exploits the exceptions that arise and uses them as opportunities for further concept development.

The ability to recognize letter patterns within words as a single unit is important for fluent reading. This skill is based on previously established memory representations of common letter patterns. The ability to form these memory representations may be impaired in some poor readers, particularly readers with naming speed deficits (NSD). This…

Richard Nisbett's "The Geography of Thought" is one of several recent works that have highlighted purported differences in thinking patterns between East Asians and Westerners on the basis of empirical research. This has implications for teaching and for other issues such as cultural integration. Based on a framework consisting of three distinct…

There is a crucial debate concerning the nature of chess chunks: One current possibility states that chunks are built by encoding particular combinations of pieces-on-squares (POSs), and that chunks are formed mostly by "close" pieces (in a "Euclidean" sense). A complementary hypothesis is that chunks are encoded by abstract,…

A test of recognition memory for sentences was administered to 22 poor readers and 15 good readers ages 10.5 to 14.6 years. Poor readers were markedly retarded in aspects of the graphemic analysis (pattern-analyzing) of the texts. (LLK)

An investigation of 4-month-old children's attention responses to pattern dimensions and orientations by comparing the duration of an infant's fixation to changes in the orientation and structural arrangement of a previously exposed pattern. (ED)

In discussing the relationship between cognitive development (perception, pattern recognition, and memory) and reading processes, this paper especially emphasizes developmental factors. After an overview of some issues that bear on how written language is processed, the paper presents a discussion of pattern recognition, including general pattern…

This unit describes an experience in informal geometry that is based on work with construction paper and milk cartons. The description is mostly of work actually carried out by children in the elementary grades involving such mathematical concepts as congruence, symmetry, the idea of a geometric transformation, and some basic notions of elementary…

Preschool, third grade and fifth grade children were presented with two choice-reaction time experiments in which probe stimulus quality was manipulated, to measure the effects of probe stimulus degradation at three developmental levels. Results support the hypothesis that children and adults employ similar strategies in preprocessing degraded…

Adult subjects viewed pictures at brief intervals, testing their reactions to informative objects--those not redundant with or predictive of the rest of the picture, such as a tractor in an underwater scene. Results indicated that observers fixate earlier, more often, and longer on informative objects. (Author/SJL)