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Interest in the study of computer technology in schools (often in the form of Computer Science subjects or coding initiatives) is seen to have undergone two waves of interest, one in the late 1970s/early 1980s and the other more recently since about 2010. Through a historical exploration of the rationales for the study of computer technology in schools in both the first wave and the second wave, this paper aimed to explore the various curriculum ideologies underpinning their justification. In doing so, the paper highlights the chameleon‐like nature of this change agenda in aligning with contemporary trends to advance the study of computer technology on the curriculum. The paper argues that current manifestations of the study of computer technology in schools are at odds with broader curriculum reform goals and international policies and raises questions about students' access to such knowledge. [ABSTRACT FROM AUTHOR]

This paper addresses the production scheduling and inventory management in a closed‐loop supply chain that recycles both high‐quality and low‐quality cores and makes products using cores and new raw materials. The manufacturing/remanufacturing supply chain consists of a vendor and a buyer, and they collaborate under a consignment stock (CS) agreement. We investigate and compare three operation policies under the CS agreement, covering continuous and intermittent production manners and shipments of equal and unequal batch sizes. For each operation policy, we develop a mixed integer nonlinear programming model to jointly optimize the production sequence of two classes of cores, production cycle length, shipment frequency, and shipment batch sizes, with the objective of minimizing the cost rate. By analyzing the respective decisions and conducting an extensive numerical study with various scenarios, we explore the advantages and applications of each operation policy. Based on our research findings, we provide general guidelines and criteria for operation policy selection. [ABSTRACT FROM AUTHOR]