The ability of certain organometallic reagents to react via 1,2- or 1,4-addition to an a,ß-unsaturated ketone is a fundamental example of regioselectivity at the second-year undergraduate organic level. The following two experiments were designed to demonstrate this preference by exploiting carvone as an inexpensive chiral, nonracemic substrate.…

Research has shown that certain ways of teaching can make a difference in whether students learn standards-based content. Many strategies have proven to be effective in teaching literacy, mathematics, science and social studies. These strategies have facilitated blending academic and career/technical subjects to make learning more meaningful for…

FAILURE OF A CLASSROOM EXPERIMENT IN PROGRAMED INSTRUCTION SCHEDULING BASED ON A CONTINGENCY CONTRACT BETWEEN TEACHER AND PUPIL WAS ATTRIBUTED TO LACK OF COMMUNICATION BETWEEN EXPERIMENTERS, TEACHERS, AND ADMINISTRATORS (TEACHER ATTITUDES DID NOT CHANGE), AND LACK OF OPTIMUM CLASSROOM CONDITIONS. TO CORRECT THESE, A NEW UTILIZATION MANUAL…