Achievement test; Block-Laying and Concreting; instructional effectiveness; open and distance learning; open schooling; performance test; practical skills; print-based instructional materials; technical and vocational education and training (TVET); video-
Open Educational Resources (OER), Distance Education System (DES), Distance Education Institutes (DEIs), Open and Distance Learning (ODL), Tech. Enhanced Learning (TEL), Information Management.
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PLAR, Information and Communication Technologies, Experiential Learning e-Portfolios, Adult Learners.