<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Dinkissa Gofer Abdissa</style></author><author><style face="normal" font="default" size="100%">Gemechis File Duressa</style></author><author><style face="normal" font="default" size="100%">Teklu Tafase Olkaba</style></author><author><style face="normal" font="default" size="100%">Eyasu Gemechu Feyissa</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">THE EFFECT OF BLENDED LEARNING EDUCATIONAL MODEL ON SECONDARY SCHOOL STUDENTS’ MATHEMATICS ACHIEVEMENT</style></title><secondary-title><style face="normal" font="default" size="100%">Problems of Education in the 21st Century</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">blended learning</style></keyword><keyword><style  face="normal" font="default" size="100%">mathematics achievement</style></keyword><keyword><style  face="normal" font="default" size="100%">quasi-experimental</style></keyword><keyword><style  face="normal" font="default" size="100%">secondary school</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2025</style></year><pub-dates><date><style  face="normal" font="default" size="100%">February/2025</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://oaji.net/articles/2023/457-1741761950.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">83</style></volume><pages><style face="normal" font="default" size="100%">Continuous</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Blended Learning has gained significant attention for its potential to enhance student achievement. However, its implementation in secondary education, especially in developing countries like Ethiopia, faces barriers such as infrastructure limitations, pedagogical challenges, and socio-economic factors. This study aimed to evaluate the effect of a blended learning model on the mathematics achievement of tenth-grade students in Ethiopia. A quasi-experimental design with non-equivalent groups, using both pre- and post-tests was employed. Two pre-existing classes from different schools were assigned to either the experimental group (n = 38) or the comparison group (n = 45) using lottery method. Prior academic records showed similar levels of mathematics achievement between the groups. A pre-test, covering topics like relations and functions, polynomial functions, and exponential and logarithmic functions, confirmed group equivalence. The data were analyzed using one-way ANOVA, which revealed that students in the blended learning group outperformed those in the conventional teaching group. A significant mean difference of 19.999 was observed, with a substantial effect size, as indicated by paired sample t-tests. These results suggest that blended learning is more effective than conventional methods in improving mathematics achievement. The study advocates for incorporating blended learning into the mathematics curriculum and urges policymakers and educators to consider adopting this model to enhance educational outcomes.</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">9-29</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Inger   Throndsen</style></author><author><style face="normal" font="default" size="100%">Are   Turmo</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">GENDER DIFFERENCES IN TEACHERS' BELIEFS AND PRIMARY SCHOOL CHILDREN'S ACHIEVEMENT IN MATHEMATICS</style></title><secondary-title><style face="normal" font="default" size="100%">Problems of Education in the 21st Century</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">mathematics achievement</style></keyword><keyword><style  face="normal" font="default" size="100%">primary school</style></keyword><keyword><style  face="normal" font="default" size="100%">teachers’ beliefs</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">February/2012</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://oaji.net/articles/2014/457-1408437740.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">39</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The main purpose of this study was to examine differences in male and female teachers’ beliefs about their math instruction, and the relationship between boys and girls math achievement and teachers’ beliefs. The samples were primary mathematics teachers (N=521) and Year 2 and Year 3 students (N=9980) from 127 schools. A questionnaire was used to examine primary math teachers' goal structure for students, approaches to instruction, and personal teaching efficacy. Students’ math achievement was assessed by national diagnostic math tests. The teachers were generally oriented towards mastery goals and mastery approaches to instruction, and reported high personal teaching efficacy. However, female teachers report somewhat higher levels of mastery goal structure for students and mastery approaches to instruction, while male teachers report a somewhat higher level of performance approaches to instruction. Positive relations between students' math performance and teachers’ mastery orientation, mastery approaches to instruction, and teaching efficacy were also found. These relationships were somewhat stronger for girls than for boys. In conclusion, the relationship between teachers’ beliefs and students’ performance were different for male and female teachers, respectively. In future studies qualitative research methods should be included.</style></abstract><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">159-170</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Maurice Musasia  Amadalo</style></author><author><style face="normal" font="default" size="100%">Duncan Wekesa  Wasike</style></author><author><style face="normal" font="default" size="100%">Joseph Mulei  Wambua</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">EFFECTIVENESS OF TEACHING PREPARATIONS ON MATHEMATICS ACHIEVEMENT: THE CASE OF KENYA</style></title><secondary-title><style face="normal" font="default" size="100%">Problems of Education in the 21st Century</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">mathematics achievement</style></keyword><keyword><style  face="normal" font="default" size="100%">mathematics lesson preparations</style></keyword><keyword><style  face="normal" font="default" size="100%">vector operations</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">July/2011</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://oaji.net/articles/2014/457-1406539921.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">31</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Despite playing a central role in peoples’ daily life, the average Kenyan secondary school students’ mathematics score in national examinations has consistently averaged below 40%. The contribution of teachers’ lesson preparations and subsequent delivery leading to this poor result has not been investigated sufficiently in Kenyan secondary schools. This is especially so for topics deemed to be difficult. The present study investigated the effect of teacher preparations when teaching the topic “Vectors” to form three secondary school students. The instructional plans impact on achievement as well as on skills performance in Mathematics formed the objectives of the study. The Solomon- four experimental design was adopted. Professionally drawn Instructional Plans provided the treatment. Students’ achievement was determined using a Mathematics Achievement Test, MAT. The study determined that the use of the instructional plans improved students’ achievement and skill performance compared to the control group. Consequently use of instructional plans when teaching mathematics was recommended for improved students’ achievement. Emphasis on students’ stepwise skill performance rather than insistence on acquisition of correct answers during problem solution in mathematics was recommended.</style></abstract><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">7-17</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Noor Ismail</style></author><author><style face="normal" font="default" size="100%">Halimah Awang</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">ASSESSING THE EFFECTS OF STUDENTS’ CHARACTERISTICS AND ATTITUDES ON MATHEMATICS PERFORMANCE</style></title><secondary-title><style face="normal" font="default" size="100%">Problems of Education in the 21st Century </style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">attitudes towards mathematics learning</style></keyword><keyword><style  face="normal" font="default" size="100%">mathematics achievement</style></keyword><keyword><style  face="normal" font="default" size="100%">mathematics knowledge</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2008</style></year><pub-dates><date><style  face="normal" font="default" size="100%">November/2008</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://oaji.net/articles/2014/457-1392298052.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">9</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">This paper analyzes mathematics performance of grade eight students using Malaysian data drawn from Trends in International Mathematics and Science Study 2003. In particular it examines the effects of students’ characteristics and attitudes towards mathematics learning on their achievement. Background information including gender of students, parents’ education level and whether students speak the language of test at home are assessed in terms of their influence on mathematics score. The number of books in home, availability of study desks and computers in home are categorized as educational resources while students’ attitude takes into account students’ educational aspirations, their perception of being safe in school, time spent on mathematics homework, self-confidence in learning mathematics and the value students place on mathematics. Chi-squared tests and odds ratios are used to examine the associations and strength of the relationships of these factors with mathematics achievement. The results show that except for gender, language spoken at home and time spent on mathematics homework, all of the other variables have significant positive influence in classifying students to low, medium and high achievers. </style></abstract><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">34-41</style></section></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Noor Ismail</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">EFFECTS OF TEACHERS AND SCHOOLS ON MATHEMATICS ACHIEVEMENT</style></title><secondary-title><style face="normal" font="default" size="100%">Problems of Education in the 21st Century </style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">academic performance</style></keyword><keyword><style  face="normal" font="default" size="100%">mathematics achievement</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2008</style></year><pub-dates><date><style  face="normal" font="default" size="100%">May/2008</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://oaji.net/articles/2014/457-1392233590.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">6</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The purpose of this study is to investigate the effect of factors related to schools and teachers on mathematics achievement of Malaysian students in the Trend International Mathematics and Science Study conducted in 2003. A total of 150 schools were involved in the study and these schools were selected at random using simple random sampling from all secondary schools in Malaysia. This study employed a uni-variate analysis such as t-test or ANOVA to investigate the differences in mathematics achievement among groups. It was found that students taught by female teachers, participating in developing mathematics contents and mathematics curriculum, having few or no limitation on instruction, spent less time in reviewing homework and more on working problem on their own, students coming from economically less disadvantaged homes, good perception on the school climate and good class attendance had significantly higher mathematics achievement.</style></abstract><work-type><style face="normal" font="default" size="100%">Original article</style></work-type><section><style face="normal" font="default" size="100%">103-112</style></section></record></records></xml>