METHODOLOGY
This paper describes preliminary results of the school-wide implementation of the 21CLD
program at Crescent Girls’ School in Singapore through the lens of a communicative arts lesson.
It represents an early stage in a larger study in which teachers are researching their own practice,
with the support of SRI International to conduct a cross-case analysis of teachers’ use of the
21CLD process to build lessons designed to deepen students’ 21st Century competencies. In line
with the literature on case study and cross-case analysis, we first create individual case records
describing teachers’ experiences implementing 21CLD-developed lessons in their classrooms
before systematically analyzing across case records to understand school-wide 21CLD
implementation (Merriam, 1991; Miles & Huberman, 1994; Yin, 1994). For this study, the case
record includes the following data:
• Assessment of lessons using 21CLD learning activity rubrics
• Assessment of students using 21CLD student rubrics as well as content-specific
assessments
• Peer classroom observations
• Teacher case reports reflecting on their implementation of 21CLD