<p class="MsoListParagraph" style="margin-left:76px"><span style="font-size:19px">一、<span style="font-variant-numeric: normal;font-variant-east-asian: normal;font-stretch: normal;font-size: 9px;line-height: normal;font-family: 'Times New Roman'"> </span></span><span style="font-size:19px">挑战幼儿已有的经验。</span></p><p class="MsoListParagraph" style="margin-left:104px"><br/></p><p class="MsoListParagraph" style="margin-left:76px"><span style="font-size:19px">二、<span style="font-variant-numeric: normal;font-variant-east-asian: normal;font-stretch: normal;font-size: 9px;line-height: normal;font-family: 'Times New Roman'"> </span></span><span style="font-size:19px">通过外部强化激发幼儿主动学习的内部动机。</span></p><p class="MsoListParagraph" style="margin-left:104px"><br/></p>