简述在科技活动中如何运用观察法。
答:(1 )观察要有明确的目标。 ( 1分)(2 )观察要真实反映客观事物。( 1分)(3 )观察要掌握正确方法,形成良好的习惯。(2分 )(4)观察要有记录。(1分)
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