Abstract: on the basis of textbook experiment, through the improvement of experimental materials and experimental steps, the experimental effect is optimized, the operation is more simple and reasonable, the materials are more commonly available, which is conducive to its popularization in the classroom. This experimental design emphasizes the principle of control, enhances the preciseness and scientificity of the experiment, which means to improve the students' use skills of the microscope, and finally achieves the purpose of improving the experimental phenomenon and efficiency.<br>Key words: experimental improvement of reducing sugar and fat protein in biological tissue<br>
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