Blended Learning and Academic Achievement: A Study of Senior Secondary School Students in Mathematics in Uyo, Akwa Ibom State

Background to the Study

Mathematics sits at the centre of the secondary school curriculum, underpinning the sciences, technology, and numerous professional fields, and standing as a compulsory requirement for admission into most Nigerian tertiary institutions. Despite its importance, students' academic achievement in Mathematics at the secondary level, reflected in both internal examinations and public examinations such as the West African Senior School Certificate Examination, has remained persistently below expectation, with conventional, largely teacher-centred instruction frequently pointed to as a contributing factor.

Blended learning — the deliberate integration of face-to-face classroom instruction with online or digital learning experiences — has emerged as a promising response to some of the limitations of purely conventional teaching. By combining the structure, immediacy, and social interaction of face-to-face teaching with the flexibility, multimedia richness, and self-paced practice opportunities that digital resources offer, blended learning is theorised to support deeper engagement, differentiated practice, and improved mastery of abstract concepts, of which Mathematics has no shortage. International evidence on blended learning's effectiveness has generally been positive, with reviews finding that students in blended conditions often outperform those receiving purely face-to-face or purely online instruction. Applying these findings to Nigeria's secondary school context, however — with its variable digital infrastructure, large class sizes, and differing levels of teacher readiness — requires direct empirical testing, particularly for a subject like Mathematics that leans heavily on both abstract reasoning and repeated procedural practice, and within a curriculum still shaped by NERDC's senior secondary curriculum framework.

Uyo Local Government Area, with its concentration of secondary schools and developing digital infrastructure, offers a useful setting for testing whether a structured blended learning approach can measurably improve Mathematics achievement relative to the conventional teaching method still predominant in most public secondary schools. It is against this background that this study investigates blended learning and academic achievement among senior secondary school students in Mathematics in Uyo Local Government Area, Akwa Ibom State.

Statement of the Problem

Despite curriculum reforms and policy pronouncements aimed at improving Mathematics teaching and learning in Nigerian secondary schools, student achievement in the subject remains a persistent concern, with many students recording poor grades in both internal assessments and the WASSCE Mathematics paper. The predominant instructional approach in most public secondary schools continues to be the conventional, lecture-based method, which offers limited room for differentiated practice, multimedia illustration of abstract concepts, or self-paced reinforcement of learning.

While blended learning has been advanced internationally as an approach capable of addressing some of these limitations, there is a shortage of rigorous, quasi-experimental Nigerian studies directly comparing the Mathematics achievement of students taught through a structured blended learning approach against those taught conventionally, particularly at the senior secondary level within specific local government areas such as Uyo. Existing Nigerian studies on educational technology have tended to focus more on teachers' attitudes toward or general adoption of ICT than on rigorously measured achievement outcomes arising from a specific, structured blended learning intervention. This creates a gap in the empirical evidence needed to justify wider adoption of blended learning approaches in teaching Mathematics — the gap this study seeks to address.

Aim and Objectives

The aim of this study is to investigate the effect of blended learning on the academic achievement of senior secondary school students in Mathematics in Uyo Local Government Area, Akwa Ibom State. The specific objectives are to:

1. Establish the baseline equivalence of the experimental and control groups in Mathematics achievement prior to the instructional intervention.

2. Determine the effect of the blended learning approach on students' academic achievement in Mathematics compared with the conventional teaching method.

3. Examine the influence of gender on the academic achievement of students exposed to the blended learning approach.

Research Questions

The study is guided by the following research questions:

1. Is there a difference between the pretest Mathematics achievement scores of the experimental and control groups prior to the instructional intervention?

2. What effect does the blended learning approach have on students' academic achievement in Mathematics compared with the conventional teaching method?

3. What is the influence of gender on the academic achievement of students exposed to the blended learning approach?

Significance of the Study

This study is significant in several respects. Theoretically, it applies Constructivist Learning Theory, the Community of Inquiry Framework, and Cognitive Load Theory to the specific context of blended Mathematics instruction in Nigerian secondary schools, an area with a relatively limited quasi-experimental evidence base.

Practically, the findings offer Mathematics teachers, school administrators, and the Akwa Ibom State Ministry of Education empirical, achievement-based evidence on the effectiveness of blended learning relative to conventional teaching, informing decisions on instructional approach adoption, teacher training priorities, and investment in the digital infrastructure needed to support blended learning. The study also serves as a useful reference for curriculum planners, educational technologists, and researchers interested in evidence-based instructional design for Mathematics and other subjects — those designing a comparable quasi-experimental study may find it helpful to work through their methodology with our research coaching service. Readers interested in how ICT and instructional technology are playing out elsewhere in Nigerian secondary education may also find our project on smart classrooms in Obio/Akpor private secondary schools a useful companion piece.

Scope of the Study

This study is conceptually restricted to examining blended learning and its effect on academic achievement in Mathematics. Geographically, it is delimited to four purposively selected senior secondary schools in Uyo Local Government Area, Akwa Ibom State, focusing specifically on intact SS2 Mathematics classes. The instructional intervention covered four topics drawn from the SS2 Mathematics scheme of work — Quadratic Equations, Trigonometric Ratios, Statistics, and Mensuration — delivered over a six-week period during the 2026 academic session.

Operational Definition of Terms

Blended Learning: An instructional approach that deliberately combines face-to-face classroom teaching with digital or online learning resources and activities, as implemented for the experimental group in this study.

Academic Achievement: Students' measured performance on the researcher-developed Mathematics Achievement Test, administered as a pretest before, and a posttest after, the instructional intervention.

Conventional Teaching Method: The predominantly lecture-based, teacher-centred instructional approach, without deliberate integration of digital learning resources, as implemented for the control group in this study.

Experimental Group: The intact classes of students taught Mathematics using the blended learning approach during the instructional intervention.

Control Group: The intact classes of students taught the same Mathematics content using the conventional teaching method during the instructional intervention.

Conclusion

The evidence from this study is about as clear-cut as quasi-experimental education research gets: students taught Mathematics through blended learning outscored their conventionally taught peers by a wide and statistically significant margin, and the gain held equally for boys and girls. That combination — a real effect size and no gender gap in benefit — makes a strong practical case for Mathematics teachers and school administrators in Akwa Ibom State to move beyond pilot enthusiasm and invest seriously in the training and digital infrastructure blended learning actually requires to work at scale. Students and researchers exploring related education, Mathematics, or instructional technology topics can browse comparable studies in our full project topics library, which spans education and related departments.

Frequently Asked Questions

1. What is blended learning?

Blended learning is an instructional approach that deliberately combines face-to-face classroom teaching with digital or online learning resources and activities, rather than relying on either approach alone.

2. Does blended learning actually improve Mathematics achievement?

Yes. This study found that students taught Mathematics through blended learning achieved significantly higher posttest scores than those taught through the conventional method, with a considerably larger mean gain score over the six-week intervention.

3. Were the experimental and control groups comparable before the study began?

Yes. The study found no statistically significant difference between the pretest scores of the experimental and control groups, confirming baseline equivalence before the blended learning intervention began.

4. Does blended learning benefit boys and girls differently in Mathematics?

No. The study found no statistically significant difference between the posttest scores of male and female students within the blended learning group, indicating that its benefits accrued similarly regardless of gender.

5. How was this study conducted?

The study used a quasi-experimental, non-equivalent control group design with intact SS2 Mathematics classes across four schools in Uyo Local Government Area, using a 40-item researcher-developed Mathematics Achievement Test administered as a pretest and posttest around a six-week instructional intervention.

6. Which Mathematics topics were covered in the intervention?

The instructional intervention covered four topics from the SS2 Mathematics scheme of work: Quadratic Equations, Trigonometric Ratios, Statistics, and Mensuration.

7. How reliable was the test instrument used in this study?

The Mathematics Achievement Test's reliability was established using the Kuder-Richardson Formula 20, yielding a coefficient of 0.82, which indicates strong internal consistency.

8. What does the study recommend for schools wanting to adopt blended learning?

It recommends that Mathematics teachers be trained and supported in designing and delivering blended learning instruction, and that schools be equipped with the digital infrastructure necessary to sustain blended learning approaches.

9. Why did the study use intact classes instead of fully randomised assignment?

Intact classes were used to avoid disrupting normal school administrative arrangements, a common practical constraint in quasi-experimental school-based research; baseline equivalence testing was applied to check for pre-existing group differences.

10. Can these findings be generalised beyond Uyo Local Government Area?

The study is restricted to four schools and one subject within Uyo Local Government Area, Akwa Ibom State, so findings should be generalised with caution to other subjects, local government areas, or states with different infrastructure and classroom conditions.