高中化学课堂教学与体系构建-畅读网

　　　　

高中化学课堂教学与体系构建

作者：赵刚

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要上好一节化学课，教师除了需要先进的教学理念、恰当的教学设计之外，更需要处理好教学过程的各个环节。这就需要化学教师熟练掌握从课前准备到课后分析的一系列教学技能。对于化学专业师范生和化学学科新教师而言，大学期间的专业学习使他们拥有了较高的理论水平。然而，实践的不足使得他们在课堂教学技能方面存在明显欠缺，这已成为制约他们水平提高的重要因素。本书旨在帮助他们迅速有效地掌握化学课堂教学的基本技能，从而实现教学水平的有效提升。

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SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 5 LIMIT 1 [ RunTime:0.001486s ]
SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 48 LIMIT 1 [ RunTime:0.001393s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 11 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.001378s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 14 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.003039s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1750527048 ORDER BY `create_time` DESC LIMIT 5 [ RunTime:0.889037s ]

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