Answer to Question 1
Low-ability and low- to medium-ability students who were assigned to groups that included either medium- to high-ability or high-ability students outscored their peers who were assigned to homogeneous groups on a hands-on problem-solving test of electricity concepts and a paper-and-pencil test of the same concepts.
Answer to Question 2
The positive outcomes associated with cooperative learning are likely due to its motivational effect, the stimulation of cognitive development via peer interaction, and its facilitation of meaningful learning
Basic Food Groups and Their Major Nutrients
Identification of the numbers in the Word Problem
Problem
Problem
The biochemical basis of the ABO blood groups
Research Methods