How can we effectively assess students' instrument operation skills and safety awareness?

Effective Methods for Assessing Students' Instrument Operation Skills and Safety Awareness
1. Hierarchical Assessment Scale

Use a performance-based assessment scale to categorize students' operational processes into four dimensions: "Preparation, Operation, Recordkeeping, and Cleanup," with each dimension assigned a 1-5 rating.

Provide real-time feedback through an online platform to help students identify weaknesses and make timely improvements.
2. Skills Test and Practical Assessment

Design a structured skills test that covers key steps such as instrument identification, correct assembly, airtightness testing, heating, and dripping.
Use an objective scoring system (e.g., 30 points for lab report, 30 points for operation, 20 points for structural analysis, and 20 points for skills test) to comprehensively assess students' practical skills.
3. SOLO Assessment Model

Introduce the SOLO (Structured Observational Learning Outcome) two-dimensional assessment system into experimental teaching, creating a hierarchical hierarchy for students' operational thinking, description of experimental phenomena, and analysis of results.
By comparing students' performance in paper-based tests with their actual performance, we can identify the true gaps in operational skills. 4. Safety Awareness Scenario Drills

Prepare safety scenario questions before and after the experiment, such as "What should you do if an alcohol lamp accidentally catches fire?" and record students' emergency response time and accuracy.
Incorporate safety drill results into the overall evaluation, forming a closed-loop assessment of safety awareness and operational skills.