问题 问答题

培养学生的探究能力是中学生物课程的重要目标之一。在教学过程中,教师应关注学生在探究活动中逐步形成观察、归纳和发现问题的能力,逐步形成设计实验、调查研究、动手实验的能力,逐步形成收集和分析数据、表达和交流的能力等。教师应结合探究活动的全过程评价学生的探究能力。例如,案例:“调查人类中遗传病”的研究性课题中,基本程序是:1.分组分工;2.选择调查病种;3.外出调查;4.统计、分析;5.讨论并得出结论。在以上案例中,教师可以从哪些方面对学生进行评价

答案

参考答案:(1)能否准确地记录和收集有价值的数据。(2)能否有效地分析实验数据并得出相关结论。(3)能否在探究活动中与小组成员合作和交流。(4)在社会调查活动中自己的感想、体会及收获。(5)分组和小组成员的分工是否科学合理,人尽其能。(6)遗传病病种的选择是否科学(最好为单基因、发病概率较高、易于调查)等。

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Today, we’ll talk about what other effects watching TV might produce on children. Children should be (1) a lot of television, many experts and parents agree, but there is at least one circumstance when it might be beneficial: (2) . A recent study conducted by Italian researchers found that children (3) immediately preceding and during blood tests experienced less pain than children whose mothers (4) during the procedure, or children whose mothers were present but (5) .
The research, led by Carlo Brown, MD, at the University of Siena, is published in the Archives of Disease in Childhood. (6) the study. None received any type of anesthesia; the children and their mothers (7) . Both the group whose mothers attempted to distract them from the blood tests and those whose mothers simply observed reported (8) than the group who watched cartoons. For that group, the levels of pain were less and the children were better able to (9) .
One of the possible explanations is that children might have (10) during the procedures, exacerbating their perception of pain. "The higher pain level reported by children during (11) shows the difficulty mothers have in interacting positively (12) in their children’s life," the authors write.
However, they stressed that (13) still provided benefits, noting that the children would (14) during the procedures. "Indeed, children state that having their parent present (15) when in pain," say the authors.
Another possibility offered for consideration is the notion that the (16) might release pain-quelling endorphins. Endorphins, (17) produced by the pituitary gland, resemble opiates in their ability to produce analgesia and a sense of well-being. In other words, they might (18) .
In any case, the study results suggest that health workers should (19) to watch television during painful procedures (20) .