抄録
The purpose of this study was to examine the improvements in tactical decision-making ability during physical education classes through numerically uneven sides (3-on-2), and the transference of this ability to a numerically even-sided context (3-on-3). The research focused on in-game decision-making as an important component of learning basketball tactics in physical education class. Sixty-two participating students were divided into two groups: 5
th graders (n=31) and 6
th graders (n=31). Both groups participated in the same unit. In order to analyze the children's decision-making ability, all games were videotaped and the Game Performance Assessment Instrument (GPAI) was used for data analysis. This instrument allowed us to record the frequency of on-the-ball decision-making. This method assisted in judging the students' performance in situations such as shooting, passing, and ball-keeping, and whether or not those decisions were appropriate. The main findings are summarized as follows:
1. Appropriate decision-making was found to improve through learning experience in numerically uneven-sided games.
2. Students who participated in 3-on-2 games demonstrated an improvement of decision-making skills during the final 3-on-3 game.
3. As for the ratio of appropriate play, this increased in the order of ball-keeping<passing≦shooting, reflecting the difficulty of each type of play.
Therefore, upper-elementary students who participated in the 10-hour basketball unit showed an ability to develop and transfer on-the-ball decision-making skills from 3-on-2 to 3-on-3 game situations.
