辩证唯物主义认为,正确反映客观事物及其发展规律的意识,能够指导人们有效地开展实践活动,促进客观事物的发展。如何开展课堂有效教学,提高学生的科学思维能力,是课堂改革的永恒主题。笔者认为,没有先进的教育教学理念,就不会有先进的教育教学实践活动。要实现有效教学,教师就应强化“零距离”意识、“留白”意识、创新意识和效率意识。 Dialectical materialism believes that correctly reflecting the objective things and the law of their development can guide people in effectively carrying out their practical activities and promoting the development of objective things. How to carry out effective classroom teaching and improve students’ ability of scientific thinking is the eternal theme of classroom reform. The author believes that there is no advanced education and teaching philosophy, there will be no advanced education and teaching practice. To achieve effective teaching, teachers should strengthen “zero distance ” consciousness, “leave the white ” consciousness, innovation consciousness and efficiency consciousness.