Service-Learning (SL) experiences enable University Social Responsibility (USR) to be worked on in engineering studies as a core of education for Sustainability. The combined use of such experiences with active student-centered teaching methodologies fosters the acquisition of general and specific competences. On the basis of students’ perception, this study investigated and sought evidence of empirical foundations to understand whether and how Project Based Learning (PBL) affects the acquisition of USR-related competences when SL experience was implemented as the regular exercise in core courses in engineering studies. This research studied 100 second year undergraduate students in Industrial Design Engineering and Product Development. The students were divided into two groups, one of which experienced Service-Learning only in one class activity while the other group carried out a PBL activity. A survey consisting of 28 items was delivered to all these students and their answers were analyzed from a descriptive statistics viewpoint to understand how the students perceived their degree of attainment of USR competences. The findings suggest a clear difference between the methodologies used, which shows that PBL methodology may lead to a greater acquisition of USR competences than SL activity.

The effects of peer tutoring on students’ mathematics self-concepts were examined. The Marsh questionnaire was used to measure students’ mathematics self-concepts before and after implementation of a peer tutoring program. A pretest posttest control group design was employed. Study participants included 376 students from grades 7 to 9 (12 to 15 years old). No statistically significant differences were reported between the pretest and the posttest for any of the control groups. Statistically significant improvements were reported for all grades for the experimental groups. An average increment of 13.4% was reported for students in the experimental group, and the overall effect size was reported to be medium (Hedges’ g = 0.48). No statistically significant differences were reported across grades for the experimental group. The main conclusion of this study is that same-age and reciprocal peer tutoring may be very beneficial for middle school students’ mathematics self-concepts. Several recommendations for field practitioners emanated from the study: use same-age and reciprocal tutoring over cross-age and fixed peer tutoring; schedule tutoring programs for four weeks or less with two to four sessions of 25 minutes or less per week for each tutoring session; and, include a control group in research studies.

A literature review was undertaken to compile all data on peer tutoring in secondary education (7th to 12th grade) mathematics from existing articles. Data from 42 independent studies were included in this research. All data regarding participants' roles (fixed vs. reciprocal), participants' ages (same-age vs. cross-age), the methodological approach taken (quantitative or qualitative), the type of design for those studies that involved a quantitative approach, the variables analyzed, and the organizational matters (number of participants, duration of the program, sessions per week, and duration of the sessions) are included in the article. The effect sizes of the 42 studies were calculated and examined. The main goal of the study was to determine those variables that were moderators of effect size, that is, the variables that significantly influenced students' academic achievement outcomes. Inferential statistical analyses (Student's t-test and ANOVAs) were carried out for the variables. Of the 42 studies examined, 88% showed positive effect sizes with the means being close to medium (Cohen's d = 0.38). Conclusions suggest the implementation of same-age over cross-age tutoring, during programs of fewer than 8 weeks, in sessions of less than 30 minutes is optimal for improving students' academic outcomes. Inclusion of control groups in similar future studies is recommended so effect sizes are not overestimated.

In this review, we have examined the main components of peer tutoring in mathematics in primary education (1st to 6th grade) settings. Fifty studies were included in this article. The review was intended to examine trends in this research field regarding roles of the participants, their age (same-age vs cross-age), the methodological approach taken (quantitative, qualitative or mixed), the type of quantitative design, the analysed variables and organisational matters (number of participants, program duration, sessions per week and duration of the sessions). Main results were also included for each article and effect sizes were calculated when possible. It was found that 75% of the studies revealed medium to very large effect sizes. The average effect size was reported to be large to very large (Cohen’s d = .89; standard deviation = .60). Limitations, recommendations for future research, implications for practice and conclusions are also presented.

Peer tutoring in Mathematics has reported academic benefits across many educational levels, from Preschool to Higher Education. However, recent literature reviews and meta-analysis state that students experience higher gains in Primary or Elementary Education (ages 7–12 years) than in secondary education or middle school and high school (ages 13–18 years). This study examined the effects of peer tutoring on students’ mathematics achievement in primary and secondary education under similar settings. 89 students from first, fourth, seventh, and ninth grades participated in the study. The design of this research was quasi-experimental with pretest–posttest without control group. The statistical analysis reported significant improvements for both, Primary and Secondary Education. The comparison between these educational levels showed that there were no significant differences in the increments of the students’ marks. The global effect size reported for the experience was Cohen’s d = 0.78. The main conclusion is that Peer Tutoring in Mathematics reports similar academic benefits for both, Primary and Secondary Education. Future research must be conducted as the superiority of Peer Tutoring in Primary over Secondary Education has yet to be proved in the Mathematics subject.

This article analyzes the perceptions of sexual affective diversity among teachers in Spanish high schools. Specifically, we address LGBTphobia, and teacher intervention and training through a survey study of 119 teachers. We administered a questionnaire to investigate these issues based on other studies. The data were analyzed on the basis of descriptive statistics. We attempted to answer three research questions: How do teachers analyze LGBTphobia in high schools? What is their experience and teaching intervention with regard to affective and sexual diversity? What perception exists in high schools about the need for training and education on affective and sexual diversity? The study concludes that high schools and their communities remain hostile places for LGBT students. Therefore, incorporating training into teaching practice and rethinking pedagogy from a queer perspective is fundamental to building an inclusive educational culture.