“巧”设情境 上“活”小学数学课

时代的发展与进步丰富和优化了我们数学课教学手段和策略,唤起了学生学习的兴趣,将数学课还原于生活,让数学课堂融入生活,从而实现了数学课堂教学的整体优化.在数学课堂教学中,根据不同的教学内容,巧妙地创设符合情理的各种情境,使抽象的问题具体化、复杂的问题简单化,把数学课上'活'.

“巧”设情境 上“活”小学计算课

随着教育的发展,对教师课堂教学的要求不断提高,对教学方法不断优化,教师要不断丰富和优化课堂教学的手段和策略.才能更好地激发学生的课堂学习积极性、才能更好地提高学生参与课堂学习的参与率、才能更好地提高课堂教学效果。数学源于生活,又服务于生活.在小学数学课堂教学中融入生活情境,使小学计算教学更省时高效,这也是教师必须要思考的问题。在小学计算教学课堂中,根据不同的教学内容,灵活、适当、巧妙地创设教学情境,使算理更具体、更容易理解,把小学计算课上“活”。

Structural Multi-objective Probabilistic Design for Six Sigma

Uncertainties in engineering design may lead to low reliable solutions that also exhibit high sensitivity to uncontrollable variations. In addition, there often exist several conflicting objectives and constraints in various design environments. In order to obtain solutions that are not only "multi-objectively" optimal, but also reliable and robust, a probabilistic optimization method was presented by integrating six sigma philosophy and multi-objective genetic algorithm. With this method, multi-objective genetic algorithm was adopted to obtain the global Pareto solutions, and six sigma method was used to improve the reliability and robustness of those optimal solutions. Two engineering design problems were provided as examples to illustrate the proposed method.

启发式教学在数学课堂教学中践行与思考

启发式教学是我国传统教育教学的重要策略，在长期实践中由于受到应试教育的羁绊，启发式教学成为可有可无的伪教学方式。文章从启发式教学的现状出发，提出以“导”抑“牵”，让启发式教学开启思维；“启”“试”结合，让启发式教学激发潜能；扣“准”设“巧”，让启发式教学攻坚克难三个维度提出实施启发式教学的相关方式，以期真正提升学生数学学习能力，形成数学素养。