Mechanism Analysis: Why Portfolio Assessment Works
Based on the research findings, we can analyze several key mechanisms through which portfolio assessment plays a role in English education for deaf and hard-of-hearing children:
1. Multimodal Learning Support
Deaf and hard-of-hearing children often rely more on visual and tactile channels to obtain information. Portfolio assessment allows students to display their learning outcomes through multiple ways—written text, drawings, handcrafts, video recordings, etc. This multimodal expression is more in line with the learning characteristics of deaf and hard-of-hearing children, enabling them to play to their strengths and fully display their language abilities.
2. Time-Pressure-Free Learning Environment
Traditional assessment often has time limits, which is an obstacle for deaf and hard-of-hearing students who need more processing time. Portfolio assessment has no strict time limits; students can complete tasks at their own pace, with more time to think, revise, and improve. This "de-stressed" environment helps deaf and hard-of-hearing students perform at their true level.
3. Immediacy of Formative Feedback
Portfolio assessment emphasizes continuous formative feedback rather than summative grade assessment. Teachers regularly review portfolios, timely identify students' problems, and provide targeted guidance. This immediate feedback mechanism helps deaf and hard-of-hearing students adjust their learning strategies in time and avoid the accumulation of errors.
4. Cultivation of Self-Efficacy
When students see their works being collected, displayed, and recognized, their self-efficacy is enhanced. This "I can do it" belief has a strong driving effect on learning motivation. For deaf and hard-of-hearing students who often suffer setbacks in traditional assessment, portfolio assessment provides opportunities to experience success, helping to break the negative self-perception of "I can't learn".
5. Expansion of Social Support
Portfolio exhibition activities expand learning from individual behavior to social activities. Students show their works to peers, teachers, and parents, gaining diversified recognition and encouragement. This social support network has positive significance for the social-emotional development of deaf and hard-of-hearing children.