人为环境 artificial environment三段教学法 three formal lesson-steps; three formal steps口述作文 oral composition口授 oral instruction; oral teaching; verbal instruction口算 oral arithmetic口语表达 oral expression口头报告法 oral report method小学学科 primary subject工作单元 unit of work; work unit中文点字法 Chinese Braille method五段教学法 five formal lesson-steps; five formal steps分析教学 analytic instruction分科教学 departmental teaching分级；分班 class grouping分组制 group system分组教学 group
