ideological and theoretical qualities and practical working ability, and strive to build a contingent of league cadres with positive work style and high quality. Hold a regular meting of the party secretary every fortnightly, arrange the work of the regiment, fedback the student information. Focus on training junior high school, junior high school secretary of the regiment branch to enable them to raise A firm political conviction, diligent and diligent learning spirit and practical and innovative work style.1.2 活动 思考班级： 姓名： 【学习目标】1．经历观察、实验、操作、猜想和归纳等数学活动，引发学生的思考；2．尝试从不同角度寻求解决问题的方法，并能有效地解决问题；3．能收集、选择、处理数字信息，做出合理的推断或大胆的猜想；4．通过数学活动，让学生对数学产生好奇心， 感受“数学地”解决问题的策略与方法，感受“做数学”的乐趣与收获，体验数学活动充满着探究与制造．【重、难点】重点：经历活动过程，在活动过程中和活动后引导学生对活动的思考.难点：恰当指导学生活动，及时引导学生思考.【学习过程】引入：谁听说过高斯（Gauss，德国数学家）？来跟大家说一说．高斯十岁时，他的老师出了一道题：1＋2＋3＋4＋……＋100＝？活动 1：如何由一张长方形的纸片得到一个正方形？完成后提问：为什么这样剪出来的图形是正方形？用这张长方形纸片还能剪出什么图形？活动 2：用火柴棒搭三角形．投影展示：搭一个，两个，三个，四个……请同学们用同样的方法搭并找规律.活动 3：观察投影上的月历并找规律．（1）图中方框中的四个数有什么关系吗？Strengthen the team connection, strengthen the knowledge education among the students (especially the first grade students), and promote the formation of good school spirit with the influence of the league members. All League branches should start with recommending outstanding students as the development objects of the League, take amateur league schools as the basis, conscientiously do a good job in the work of pre-league education, league mem...
