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多年来,我们一直组织学生采集和制作植物的蜡叶标本,并从中选取一些作为直观教具,以加强课堂直观教学和调动学生内学习积极性。在实践过程中,我们从照相馆利用过塑机给相片过塑能很好地保存照片这一点受到启发,运用过塑机过塑植物蜡叶标本,效果很好。在教学中受到学生们的欢迎。现介绍具体做法如下: 1.根据教学内容和要求,将采集来的各类植物标本给予整理、压制和干燥。2.把干燥处理后的标本,用万能胶将标本固定在台纸上。安放标本时要注意科学性和艺
Over the years, we have been organizing students to collect and produce botanical wax leaf specimens, and select some of them as visual aids to enhance intuitive instruction in the classroom and mobilize enthusiasm for learning within the students. In practice, we have been inspired by the use of laminating machines for photo laminating in photo studios to preserve photographs well. The use of laminators to over-mold plant wax leaf specimens works well. It was welcomed by students in teaching. Here are the specific practices as follows: 1. According to the teaching content and requirements, the collection of various types of plant specimens will be given finishing, pressing and drying. 2. The dried specimens were fixed with the adhesive on the table paper. When placing specimens, pay attention to science and arts