陈俊欣 2019-10-24 23:36
<p><span style="color: rgb(38, 38, 38); font-family: 宋体; background-color: rgb(255, 255, 255);">基于学科核心素养的初中化学教学设计,从新的高度、新的视角分析、把握教学内容,从学科素养培养的视角来拟定教学目标,赋予原有三维目标新的内涵,在教学实践中变革学习方式和教学模式,以情景呈现、问题引导、小组合作探究、实践体验,充分体现教师主导、学生是学习主体的教学方式,精心整合教学资源,培育和建构物质观、微粒观、转化观,促进学生化学学科核心观念的养成,突出学科核心素养的核心作用,彰显化学学科育人价值。</span></p>
邓堪扶 2019-10-24 18:46
<p style="border-bottom-color: currentColor; border-bottom-style: none; border-bottom-width: 0px; border-image-outset: 0; border-image-repeat: stretch; border-image-slice: 100%; border-image-source: none; border-image-width: 1; border-left-color: currentColor; border-left-style: none; border-left-width: 0px; border-right-color: currentColor; border-right-style: none; border-right-width: 0px; border-top-color: currentColor; border-top-style: none; border-top-width: 0px; color: rgb(51, 51, 51); font-family: &quot;微软雅黑&quot;; font-size: 12px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 26px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; orphans: 2; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;">中和反应更加体现在中和滴定方面，究竟是向酸中滴碱呢，还是向碱中滴酸？这是非常重要的问题！<span style="display: inline !important; float: none; background-color: rgb(255, 255, 255); color: rgb(51, 51, 51); font-family: "微软雅黑"; font-size: 12px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 26px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; word-spacing: 0px;">属于微观解析，从电解水分裂成氢原子和氧原子，每两个氢原子和每两个氧原子分别结合生成一份氢分子和一份氧分子</span></p>
邓堪扶 2019-10-24 18:46
<p class="pl_nr" style="border-bottom-color: currentColor; border-bottom-style: none; border-bottom-width: 0px; border-image-outset: 0; border-image-repeat: stretch; border-image-slice: 100%; border-image-source: none; border-image-width: 1; border-left-color: currentColor; border-left-style: none; border-left-width: 0px; border-right-color: currentColor; border-right-style: none; border-right-width: 0px; border-top-color: currentColor; border-top-style: none; border-top-width: 0px; color: rgb(51, 51, 51); font-family: &quot;微软雅黑&quot;; font-size: 12px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 24px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; orphans: 2; overflow-wrap: break-word; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;">中和反应的实验教学能体现的核心素养是反应实质的微观探，反应中质能等变化；自主构建从个别到一般的归纳。让学生亲自动手操作，给学生机会，让学生主动讨论，学生思维更加活跃。<br/></p>
邓堪扶 2019-10-24 18:12
<p><span style="display: inline !important; float: none; background-color: rgb(255, 255, 255); color: rgb(51, 51, 51); font-family: "微软雅黑"; font-size: 12px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 26px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; word-spacing: 0px;">实现科学素养，得把他们带到实验室，亲手做实验。引导他们对原始实验进行创进，以培养他们的创新能力。通过视频离子反应的分析，让他们了解到本质。引导他们把实验运用到现实中来。</span></p>
曾捷燕 2019-10-24 15:31
<p><span style="color: rgb(51, 51, 51); font-size: 12pt; text-align: justify; text-indent: 28px; background-color: rgb(255, 255, 255); font-family: 宋体;">控制好溶液的浓度是该实验的关键，酚酞溶液和盐酸的浓度要求比较浓一点，氢氧化钠溶液的浓度要稀一点，这样，颜色的变化很明显，而且溶液 </span><span style="color: rgb(51, 51, 51); font-size: 12pt; text-align: justify; text-indent: 28px; background-color: rgb(255, 255, 255); font-family: 宋体;">中和 </span><span style="color: rgb(51, 51, 51); font-size: 12pt; text-align: justify; text-indent: 28px; background-color: rgb(255, 255, 255); font-family: 宋体;">时间可以缩短。</span></p>