阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或用括号中词语的正确形式填空,并将答案填写在答题卡标号为1~10的位置上。
In recent years, Bill Gates has given financial support to improve American education. He launched the Measures of Effective Teaching project to test new ways to recognize what makes a good teacher.
Thousands of teachers volunteered to take part. They agreed to have their classes (record)on video, but only for observation by researchers.
Last spring, the project collected digital videos of thirteen thousand lessons in the classrooms taught ______the teachers. Researchers also collected information from students. They asked students to report ___opinions of each teacher's classroom.
Officials __ (recent) released early results of the project study. The report says __(teacher)past success in raising student scores is one of the (strong) signs of their ability to do so again. This (know) as a teacher's "value-added."Another finding shows that (combine) different sources of information helps administrators provide better suggestions to teachers. In many cases, administrators had been basing their comments on student test scores only.
The searchers plan to test a new measure that examines a teacher knows about how to teach a subject. Experts say these (find)could also help create better training and development for teachers.