Download e-book for iPad: Children's Mathematical Development: Research and Practical by David C. Geary

By David C. Geary

ISBN-10: 1557982589

ISBN-13: 9781557982582

This examine examines number-skills advancements from infancy via early life. It identifies universals in early mathematical improvement and describes how they're expressed in numerous cultures. Cross-national modifications in maths success are thought of.

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4 more sophisticated approach involves dumping and then checking by counting. ” T o divide the candy among three people, a more sophisticated approach would be to count the pieces of candy, divide this total by 3, and then distribute the candy equally. K. Miller found that not even 9-year-old children used this type of strategy. A clearer developmental trend is evident in children’s strategies for dividing length, as in dividing a hot dog among three people (K. Miller, 1984; Piaget, Inhelder, & Szeminska, 1960).

This opening in the top of the box was covered by pieces of elastic fabric such that a person’s hand could be inserted through pieces of the fabric and into the chamber of the searchbox without visually revealing the chamber’s contents. (Starkey, 1992, p. 102) 40 CHILDREWSMA~~EMATICAL DEVELWHENT In the first of two experiments, children placed between 1 and 5 table tennis balls, one at a time, into the searchbox. Immediately (1 or 2 s later) after the child had placed the last ball into the searchbox, he or she was told to take out all of the balls.

Across some of the trials, the same addends were presented but with their positions reversed. For instance, the chil6 on one trial and 6 + 13 on the next dren were asked to solve 13 trial. If the children understood that addition was commutative, then the strategy used to solve 13 + 6, in this example, would differ from that used to solve 6 + 13. In particular, they might count “13, 14, . . , 1983, p. 160). In this study, 72% of the first-grade children and 83% of the second- and third-grade children consistently (on at least three of four trials) showed this type of pattern.

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Children's Mathematical Development: Research and Practical Applications by David C. Geary


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