Meiwa High School

This study aimed to examine authentic models of science assessment in assessing the competence of senior high school students who met the criteria of validity, practicality, and effectiveness. The methodology applied was an evaluation and developmental research. Research was conducted in senior high school in accordance with the needs of the development of authentic Statistical Analysis System (SAS) models. The participants were students of class X senior high school Gowa in South Sulawesi academic year 2020/2021. The instruments comprised (1) SAS model validation sheet; (2) science achievement test; (3) questionnaires; and (4) observation sheet. The findings of the quality authentic science assessment model met the validity and effectiveness criteria for high category learning outcomes with positive student responses. The practicality implications of the SAS model were also very worthy of applied science in teaching science for assessing the competence of senior high school students.

米国の6～8学年を対象とした，NOSI（Nature of Scientific Inquiry）の理解を目指す教材“Argument-Driven Inquiry in Physical Science: Lab Investigations for Grades 6–8”（ADIPS）を事例として，実践的な観点からその指導法の分析を行った。ADIPSにおけるNOSIの指導法の分析を踏まえると，NOSIの理解を促す指導法の主要な特質は以下の四点であることが示唆された。第一に，アーギュメント能力の育成を図る問いの設定，第二に，科学者が行う科学的探究のありようを追体験・共有する手立ての提供，第三に，生徒が自らの科学的探究活動を振り返る中で科学者が行う科学的探究とは何かについて理解・共有する経験の提供，第四に，科学者の論文執筆・査読過程を参考にした学習活動等を通じて概念理解や表現力の育成とともに科学者のリアルな営みへの認識をも深める活動の導入。

This paper proposes a single-pulse control method for improving the efficiency of switched reluctance motors. The proposed method has three excitation modes to vary the excitation interval according to the conduction angle reference value. Experiments were carried out with a real system to compare the efficiencies of the proposed method and the voltage-PWM control with a constant excitation period. The efficiency of the proposed method was a maximum of 13.2% higher in the low-medium speed and high load regions compared with the voltage-PWM control.