eric.ed.gov har udgivet:
The purpose of this study was to measure the effects of tutoring low achievers on the concepts of carrying and borrowing before they were introduced in the classroom. Twelve low-achieving second-grade students were tutored on these concepts. The tutored children, along with members of two control groups, participated in a pretest covering these ideas. After the two-week tutoring period, members of all three groups participated in a mock classroom. The pre-remediated children performed significantly better than control group members on both types of problems (p less than .01), as well as in classroom participation (p less than .05). (Author/SD)