Comprehensive schoolwide initiatives like integrated multitiered systems of support (I-MTSS) and universal design for learning (UDL) present opportunities for large-scale impact on improving teacher instructional practices and, therefore, student outcomes. Specifically, implementing I-MTSS and UDL concurrently presents an opportunity to enhance and improve universal instruction for all students. This mixed-methods study explored current Tier 1 practices in elementary schools across the United States. Findings revealed that I-MTSS and UDL are perceived as being implemented concurrently. In addition, school personnel identified specific barriers to implementation.

中文翻译：

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在集成的多层次支持系统中学习的通用设计

全校范围内的综合举措，如综合多层支持系统 (I-MTSS) 和通用学习设计 (UDL)，为改善教师教学实践并因此提高学生成绩提供了大规模影响的机会。具体来说，同时实施 I-MTSS 和 UDL 提供了一个机会来加强和改进对所有学生的通用教学。这项混合方法研究探索了美国小学当前的第 1 层实践。调查结果显示，I-MTSS 和 UDL 被认为是同时实施的。此外，学校工作人员确定了具体的实施障碍。