A mobile phone video-based interactive chemical experiment operation assessment method

Abstract

The invention discloses a mobile phone video-based interactive chemical experiment operation assessment method, which includes the following steps: (1) Before the assessment: For teachers: the teacher formulates specific assessment content, and records a complete and correct experimental operation video according to the detailed standard content of the assessment and scoring (2) During the assessment: Students use mobile phones to record each other’s assessment videos and upload them to the online learning platform for intelligent watermark generation; (3) After the assessment: The teacher’s scoring rules corresponding to each experimental content in the video taken by the teacher are in the form of watermarks It is automatically generated in the corresponding content of the video taken by the students. The present invention no longer requires the teacher to demonstrate the experimental steps step by step, saving a lot of time, and generates the watermark of the detailed rules for scoring the experimental content of the corresponding stage in the assessment video video taken by the students, and no longer needs the students to give the teacher separately while watching the video. The grading standard greatly reduces the difficulty of students' grading.

Description

technical field [0001] The invention relates to the technical field of chemical experiment operation assessment, in particular to a mobile phone video-based mutual aid chemical experiment operation assessment method. Background technique [0002] Chemistry courses are compulsory courses for majors in chemistry and chemical engineering, biology, food science, and pharmacy in colleges and universities. Chemistry courses are a highly practical subject. The basic operation training of chemical experiments and the cultivation of experimental skills are very important for learning chemistry well. It has played a very important role, and the effective assessment of students' experimental operation ability is an important measure to improve the quality of teaching. At the end of the experimental class, it is very important to evaluate the students' experimental operation immediately, but the workload of the experimental evaluation is too large, and teachers are often discouraged, so...

AI Technical Summary

Problems solved by technology

[0006] However, the above-mentioned assessment method still has disadvantages: after the assessment is completed, the teacher needs to demonstrate the correct steps step by step and announce the scoring standards. The situation will seriously affect the accuracy of scoring, and if the students have recorded and recorded the scoring standards after watching the teacher's demonstration, when the students rate the video of the experimental steps, they need to compare the scoring standards while watching the video, As a result, the scoring review process is very complicated, so the assessment and scoring process still needs to be improved

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