A STUDY ON IMPROVING THE QUALITY OF EARLY CHILDHOOD TEACHERS' MAP－READING SKILLS IN THE CONTEXT OF THE "DOUBLE REDUCTION" POLICY

With the implementation of the "Double Reduction" policy, the focus of the curriculum has gradually shifted from the traditional recitation of knowledge points and test-taking training to the cultivation of disciplinary competence and literacy. Through reviewing relevant literature, it is found that the understanding and application of diagrams and charts are an important part of cultivating subject competence and literacy. As a common tool in teaching, charts and diagrams play an important role in early childhood education, and the improvement of early childhood teachers' ability to read charts and diagrams has become a greater concern. Therefore, this study adopts questionnaires and in-depth interviews to comprehensively assess the chart-reading ability of early childhood teachers, and then proposes corresponding improvement strategies. By improving the map-reading ability of kindergarten teachers, this study aims to support primary and secondary school teachers in using maps and charts effectively in classroom teaching, so as to ensure the continued effectiveness of the "Double Reduction" policy and to promote the all-round development of student

Some 33-designs and shortened codes from binary cyclic codes with three zeros

Linear codes and $t$-designs are interactive with each other. It is well known that some $t$-designs have been constructed by using certain linear codes in recent years. However, only a small number of infinite families of the extended codes of linear codes holding an infinite family of $t$-designs with $t\geq 3$ are reported in the literature. In this paper, we study the extended codes of the augmented codes of a class of binary cyclic codes with three zeros and their dual codes, and show that those codes hold $3$-designs. Furthermore, we obtain some shortened codes from the studied cyclic codes and explicitly determine their parameters. Some of those shortened codes are optimal or almost optimal.Comment: 20 pages. arXiv admin note: text overlap with arXiv:2110.03881, arXiv:2007.0592