This research investigated the visual spatial representations, mathematical problem solving and spatial visualization ability of forth grade, fifth grade, and sixth grade elementary school students.
本研究考察并比较了四至六年级儿童的视觉—空间表征策略、数学问题解决和空间视觉化能力。
Presently the domestic and overseas scholars pay more attention to the safety problem of large-scale oilcan section, and the oilcans explosion resist ability is one of pop research problems.
目前国内外学者日益重视大型储油罐区的安全问题，油罐的防爆炸破坏能力成为研究的热点之一。
The objective of the action research was to promote the understanding of effective teaching and to enhance teachers?abilities of problem solving and students?learning ability.
然而，由于我国传统的数学教学对“双基”的过度重视，培养学生解决问题的能力曾一度只是纸上谈兵，没有落到实处。
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