To evaluate the effectiveness of demonstrations in vocational agriculture instruction, 12 randomly selected Iowa high schools were divided and used as a control group and a demonstration group. Thirty-nine demonstrations were used in four subject matter areas of the test group, while the control group did not have use of the demonstrations.…

To determine the effect of field trips on student achievement in each of four subject matter areas in vocational agriculture, 12 schools offering approved programs were randomly selected and divided into a treatment group and a control group. Uniform teaching outlines and reference materials were provided to each group. While no field trips were…

With the idea of providing a valid conditioning and testing situation by which the student's self-confidence and effectiveness in communicating in a foreign language could be improved, this study evaluates a pilot project designed to identify and measure the effects of having a native speaker in the classroom for a period of time as opposed to a…