Early lexical acquisition is affected by biases and constraints within learners, but also by patterns and statistical regularities within a learner's environment. Much of the previous work examining the effect of statistical regularities on word learning has been directed at phonological regularities. Particularly, research has focused on the…

Describes a new idea in finger-counting developed by 31 year old Hang Young Pai, a Korean teacher living in New York. It is called Chisanbop and it comes from a more advanced hand-calculation system used in the Orient in conjunction with the abacus. It is applicable for both elementary students and for more advanced mathematical applications, such…

Fourteen third graders were given numerical computation and division-with-remainder (DWR) problems both before and after they were taught the division algorithm in classrooms. Their solutions were examined. The results show that students' initial acquisition of the division algorithm did improve their performance in numerical division computations…

Examines 109 children from grades 3 through 6 for computational facility and the relationship between automaticity, or efficient processing of addition facts, and success in more complex tasks. Indicates that most errors on the multidigit sums were due to fact inaccuracy, not algorithmic errors. Discusses instructional implications for students…

This article offers guidelines for using timed drills to achieve computational fluency in elementary students. It considers the acquisition and practice stages of learning, setting fluency aims and objectives, measuring fluency, research supporting time trials, how to do time trials, and 11 specific guidelines for conducting time trials. (DB)