1. Introduction
In the Nigerian education system, mathematics is a mandatory subject to be offered from primary (basic) through the junior secondary and senior secondary levels of learning. The craving for a high level of performance in the subject placed a lot of pressure on students, teachers, parents and, specifically, the school and, in general, the education system itself. In Sokoto state, like most states in Nigeria, mathematics is a compulsory subject from primary through to secondary school level. The importance of mathematics in the school curriculum cannot be compared with any other subject in the field of education. This is because mathematics has played a big role in developing human thought, it also brought about systematic reasoning processes used in problem solving and analysis [
1].
The key anticipation of mathematics as a subject is the development of problem-solving skills, as stipulated by [
1,
2]. Mathematics is an instrument that can be applied to train students to be able to solve problems and also to build their thinking abilities that lead to further solving of non-mathematical problems. It is imperative that learning to solve problems be fundamental to learning mathematics, as problems are part of everyday life. Problem solving, according to [
3], is a cognitive process directed at achieving a goal when no solution method is obvious to the problem solver. Their definition consisted of four parts: Firstly, problem solving is cognitive, i.e., it occurs within the cognitive system of the problem solver. Secondly, problem solving is a process, i.e., it involves applying a cognitive process to cognitive presentation in the problem solvers’ cognitive system. Thirdly, it is directed, i.e., it is guided by the problem solver, and lastly, it is personal, i.e., it depends on the knowledge and skills of the problem solver.
Therefore, the ultimate aim of teaching and learning mathematics at any level is to solve problems [
4]. Ref. [
4] described it as the backbone of science and technology and an inevitable tool for human survival in everyday life. Secondary school mathematics has many core areas of study, such as algebra, mensuration, statistics, numbers and numeration, geometry, and trigonometry. All the aforementioned aspects of mathematics involve the application of problem-solving skills.
In algebra, letters stand in for numbers. According to [
5], algebra is a branch of mathematics that makes use of both alphabets and arithmetic. Having letters and numbers together is already confusing enough, but when the letters’ values shift or one letter is substituted for another at intervals, it becomes even more so for students. What is done to one side of an algebraic equation with a number on one side of the scale is also done to the opposite side of the scale [
6]. The numbers are fixed; they span the gamut from real to complex numbers to matrix to vectors.
This has led to many students failing to achieve a basic algebraic literacy, as such, it turns out to be a barrier to their entry into careers in sciences, engineering, technology and business [
6,
7,
8,
9,
10]. Therefore, all mathematical processes of problem solving and all problems are resolved into algebraic expressions and equations for possible solutions. Middle-school teachers frequently select tasks that can be used to improve algebraic reasoning. It is critical that teachers learn to recognize the algebra that occurs naturally in focusing tasks on other strands and transform those occurrences into meaningful learning opportunities. Looking at EI as one of the social skills, students will be better prepared for the mathematical challenges that lie ahead if teachers pay attention to the algebraic opportunities that already exist in those tasks and modify those tasks so that they foster algebraic thinking among students. This can go a long way toward ensuring that students are successful in their future mathematical endeavors [
11]. This implies that, it is only those students who understand, master, and retain knowledge and skills in algebra that are likely to apply them successfully in their mathematics field and in real life. Research has revealed that several factors play a vital role in influencing students’ understanding of algebraic expressions and performance in mathematical problem solving, such as students’ self-concept, self-efficacy, extrinsic motivation, experience in school, and attitudes [
12,
13,
14].
Research studies have indicated that students’ attitudes towards mathematics, and algebra in particular, are very much correlated to their attitude towards problem solving in general [
15,
16,
17]. Ref. [
18] suggested that negative attitudes in students needed to be overcome in order to prevent the persistent occurrence of poor algebraic problem-solving skills in the future. Algebra is a challenging area of mathematics education. However, students cannot avoid learning algebra. This is due to the fact that algebra is often a prerequisite for entry into fields of study and careers that require higher sophistication. In addition, the goal of algebra is to give students a chance to hone their deductive reasoning skills. This goes against the grain of what is taught in schools these days about mathematics. The majority of algebra instruction in schools nowadays is devoted to an emphasis on procedural-based topics, unrelated to real-world problems. This goes against the purpose of learning math in general and algebra in particular, which is to equip pupils to solve issues in an increasingly complicated environment [
19]. It is imperative to teach students how to overcome the mathematics representation phase since many difficulties they face are not connected to algebraic problem solving. Students’ interest in mathematics and their beliefs in the usefulness of mathematical knowledge in their future career or in their everyday life are determined in a fundamental way by their problem-solving behavior [
20,
21,
22]. Therefore, students’ attitudes towards solving algebraic problems is largely affected by their beliefs on how important mathematics is to them and by the level of the students’ confidence in solving problems in mathematics.
Algebraic problem solving in mathematics as a subject is of vital importance [
23]. Students equipped with problem-solving skills would increase their self-confidence, which directly affects the way they see and evaluate themselves in learning mathematics. The evaluation usually leads to them to have a positive or negative self-concept. Self-concept is a domain-specific self-evaluation [
24], a thorough representation of an individual’s beliefs, which has influenced many disciplines, including social psychology, personality, education, child development, mental and physical health, social service, organization, industry, and sport [
25]. Stedman’s medical dictionary defines self-concept as an individual’s idea of self, including an appraisal of one’s standing based on society or personal norms. Ref. [
26] defined self-concept as the sum of an individual’s beliefs, attitudes, and opinions about him/herself.
Ref. [
26] characterized the self as perceptual, conceptual, and attitudinal. The perceptual component is a person’s image of his body’s appearance and the impression he makes on others. The conceptual component is a person’s notion of his particular qualities, abilities, background, origin, and future. This is called psychological self-concept and includes honesty, self-confidence, independence, courage, and their opposites. The attitudinal component refers to a person’s feelings about himself, his present status, and future prospects. Early adolescence is a pivotal phase in children’s self-concept development [
27], as it profoundly modifies the sense of self. The child’s self-concept develops into an increasingly sophisticated and integrated self as a result of the environment and social interaction [
26,
28]. Self-concept is the basis for all motivational behavior in an individual. Generally, the construct of self-concept has been utilized in several studies as a measure of the cognitive (intellect and problem-solving ability) and affective (emotions, such as motivation, interest, anxiety, belief, and attitude) parts of an individual [
29,
30,
31,
32,
33]. In another study, self-concept was found to be essential in building students’ emotions [
34].
Emotions in an individual are considered fundamental because they underlie every expression of evaluation in one way or another [
35]. Emotions develop into students having strong or weak emotional intelligence (EI). EI, as one of the variables in this research, is a new construct in psychology, academic performance, social skills, career, marriage, and personal life. It has to do with the ability to accurately perceive emotions, to access and generate emotions to assist thinking, to understand emotions and emotional knowledge, and to regulate emotions in others to improve emotional and intellectual growth in an individual [
36]. It is the set of abilities that account for how people’s emotional reports vary in their accuracy and how the more accurate understanding of emotions leads to better problem-solving skills in an individual’s life [
37].
EI can be considered as a factor that can be learned and taught as an indicator that is capable of preserving and improving problem solving skills [
38]. These demand teachers to create a classroom environment that integrates EI in planning mathematics instruction either through the students’ activities or exercises, so as to improve the students’ attitude towards problem solving in algebra [
14]. To ensure that students succeed in introductory mathematics courses, it is critical to first understand how they relate algebraic operations to basic number properties. Students gain an understanding of algebraic operations, according to researchers, by making connections to basic number properties [
39]. The findings of previous studies showed that students who have high emotional control can obtain high achievement in mathematics and science. This is because a student who has adequate management and control of emotions can excel in mathematics and science, which require high cognition load [
38]. Similarly, ref. [
40] found that students who followed the lessons by integrating EI showed significantly higher mathematics scores. Therefore, students who had a high EI usually had a better recognition of their own feelings and emotions and those of others.
A study on the influence of EI on SC conducted by [
34] found that EI was essential in building SC. Feelings and expressions of emotions appropriately exerted a great influence in having a positive SC. Considering the fact that problem-solving ability in algebra plays an important role in students’ performance in mathematics, it is necessary to find out which factors could improve their problem-solving ability in algebra and how these factors relate to their attitudes towards problem-solving in algebra. The present study focused on four variables; self-concept (SC), emotional intelligence (EI), and problem-solving skills (PSS) on attitude towards solving algebraic problems (ATSAP). This study specifically sought:
- i.
To determine which factor has an influence on students’ attitude towards solving algebraic problems;
- a.
To determine the influence of self-concept (SC) on attitude towards solving algebraic problems (ATSAP) amongst secondary school students in Sokoto state.
- b.
To determine the influence of emotional intelligence (EI) on attitudes towards solving algebraic problems (ATSAP) amongst secondary school students in Sokoto state.
- c.
To determine the influence of problem-solving skills (PSS) on attitudes towards solving algebraic problems (ATSAP) amongst secondary school students in Sokoto state.
- ii.
To examine the relationship between self-concept (SC), emotional intelligence (EI), and problem-solving skills (PSS) amongst secondary school students in Sokoto state.
- iii.
To develop a model based on students’ attitude towards solving algebraic problems (ATSAP) in relation to their self-concept (SC), emotional intelligence (EI), and problem-solving skills (PSS).
Two research questions were formulated based on these objectives:
- i.
RQ1: Are there any significant influences of self-concept (SC), emotional intelligence (EI), and problem-solving skills (PSS) on attitudes towards solving algebraic problems (ATSAP)?
- ii.
RQ2: Are there any significant relationship between self-concept (SC), emotional intelligence (EI), and problem-solving skills (PSS)?
From these research questions, six hypotheses were developed:
- i.
Null Hypothesis 1: There is no significant influence that exists between self-concept (SC) and attitude towards solving algebraic problems (ATSAP) among secondary school students in the state of Sokoto.
- ii.
Null Hypothesis 2: There is no significant influence that exists between emotional intelligence (EI) and attitude towards solving algebraic problems (ATSAP) among secondary school students in the state of Sokoto.
- iii.
Null Hypothesis 3: There is no significant influence that exists between problem-solving skills (PSS) and attitude towards solving algebraic problems (ATSAP) among secondary school students in the state of Sokoto.
- iv.
Null Hypothesis 4: There is no significant relationship that exists between self-concept (SC) and emotional intelligence (EI) among secondary school students in the state of Sokoto.
- v.
Null Hypothesis 5: There is no significant relationship that exists between emotional intelligence (EI) and problem-solving skills (PSS) among secondary school students in the state of Sokoto.
- vi.
Null Hypothesis 6: There is no significant relationship that exists between self-concept (SC) and problem-solving skills (PSS) among secondary school students in the state of Sokoto.
Inconsistency in Findings
Quite a lot of research has been done in relation to the variables under study. Scholars have studied the SC, EI, and PSS of students in mathematics in relation to their academic achievement. All of the findings in the trend of the previous research indicated inconsistent results. For instance, in the study carried out by [
41] on the EI of students and their academic performance, the results indicated that there was no significant difference in all the dimensions of EI and their academic performance. Ref. [
42] also found, in their study, that EI did not predict the academic achievement of students. On the contrary, in a study conducted by [
43,
44], a significant relationship between EI and academic achievement was shown. Ref. [
45] found a significant low-positive relationship between the EI of students and their academic performance. From the aforementioned, it is evident that there is inconsistency in the findings of previous studies, therefore, making the present study necessary to be carried out, more so the present study will be in a different environment entirely with different subjects from a different culture and background, as suggested by [
46]. Similarly, research on SC has also been done previously, where the study by [
47] showed that SC was a strong predictor of academic achievement and that there was a relationship between SC and students’ academic achievement. This result was in agreement with the findings of [
33,
48,
49,
50,
51,
52,
53,
54,
55]. On the contrary, refs. [
56,
57] found that SC did not predict the students’ academic performance.
However, although the study of attitudes towards mathematics has been developed over a long period of time, the study of attitudes towards solving algebraic problems has a short history in mathematics education and is a dearth in the literature. This study will attempt to investigate the role of SC, EI, and PSS as specific variables in order to identify the predictor of positive ATSAP. The purpose of this study, therefore, is to empirically examine the relationship between SC, EI, and PSS in relation to students’ ATSAP, which has not been explored in detail. Most studies on SC and EI in the Nigerian context have largely examined these variables in relation to students’ general academic performance and not to specific subject areas, whereby the linking process of both variables was largely neglected, especially the aspect of students’ ATSAP, which was under-explored and unclear.
4. Research Findings
As demonstrated in
Table 2, the age of the respondents ranged from 11 to above 21 years old (three groups). The results indicated that 197 (52.3%) respondents belong to the age group of 11 to 14 years, 179 (47.5%) belong to the age group of 16 to 20 years, and one (3%) falls above 21 years of age. The majority of the students in secondary school two (SSII) were within the average age of 16 years and were believed to have the skills needed to read and understand written letters. The results of gender analysis revealed that 210 (55.7%) respondents were males and 167 (44.3%) of the respondents were females. There were more boys than girls in the secondary schools of Sokoto, Nigeria. This may be due to the fact that the girls were not encouraged to acquire Western education, but instead they were given out in marriage as compared to their male counterparts [
77,
78,
79].
The school’s location was classified according to whether it was in an urban or rural area. The analysis showed that 269 (71.4%) of the respondents were from urban schools, while 108 (28.6%) were from rural schools. The result of parents’ educational level shows that 67.9% (N = 256) parents had acquired at least a degree, 7.4% (N = 28) had a diploma, 18.8% (N = 71) did not proceed with their education after the post primary level, 4.5% (N = 17) had not been to school, and 1.3% (N = 5) stopped their education at the primary (basic) level. From the results, it can be deduced that the parents of the majority of the students had acquired at least a degree as their academic qualification. It was believed that the parents of the respondents (being that they had acquired education to a certain level) knew the importance of supporting their children to succeed academically.
The distribution of the respondents based on their parents’ occupation indicated that 276 (73.2%) were working parents, 84 (22.3%) were farmers, eight (2.1%) were artisans, and nine (2.4%) did not fall into the category of those aforementioned. Since more than 70% of the parents of the respondents were working class, they were capable of paying their school fees and providing the school materials needed for their children to succeed in school.
4.1. The Influence of Self-Concept (SC) on Attitude towards Solving Algebraic Problems (ATSAP) amongst Secondary School Students in Sokoto, Nigeria
Null Hypothesis 1: There is no significant influence between self-concept (SC) and attitude towards solving algebraic problems (ATSAP) among secondary school students in the state of Sokoto.
The data analysis was performed by conducting a path analysis to determine the relationship between students’ SC and their ATSAP by using SmartPLS3. This is presented in
Figure 2.
The path analysis results showed that SC had a significant direct negative influence on the students’ ATSAP. As shown in
Table 3, the relationship was negative with a path coefficient (β = −0.212, t ≥ ±1.96). According to [
80], “The standard decision rule for a relationship between constructs to be significant is (
t-value ≥ 1.96 and
p-value is ≤0.05)”. This was applied here to decide the significance of the path coefficient between the dependent variable and independent variable. Since the
t-value was > ±1.96, the relationship between SC and ATSAP was significant and SC had influenced the students’ ATSAP. The null hypothesis was rejected. In this study, the SC accounted for 0.045% of the variance in ATSAP.
4.2. The Influence of Emotional Intelligence (EI) on Attitude towards Solving Algebraic Problems (ATSAP) amongst Secondary School Students in Sokoto, Nigeria
Null Hypothesis 2: There is no significant influence between emotional intelligence (EI) and attitude towards solving algebraic problems (ATSAP) among secondary school students in the state of Sokoto.
The path analysis results on students’ EI on their ATSAP showed that there was a relationship but not a significant one. The relationship was negative and not significant with a path coefficient (β = −0.043, t < ±1.96) (
Figure 3). Based on the t-statistics of 0.912 and a
p-value of 0.362, it meant that EI had no influence on ATSAP. Only 0.002% of EI was explained in ATSAP. Therefore, the null hypothesis is accepted (
Table 4).
4.3. The Influence of Problem-Solving Skills (PSS) on Attitude towards Solving Algebraic Problems (ATSAP) amongst Secondary School Students in Sokoto, Nigeria
Null Hypothesis 3: There is no significant influence between problem-solving skills (PSS) and attitude towards solving algebraic problems (ATSAP) among secondary school students in the state of Sokoto.
Based on the path analysis in
Figure 4, the result showed that the student’s problem-solving skills had a direct positive relationship with their attitude towards solving algebraic problems. The relationship was significant and positive with a path coefficient (β = 0.105, t > ±1.96). This implied that the students’ PSS influenced the attitude of the students towards solving algebraic problems (with a
t-value of 2.002 and a
p-value of 0.046). Since the
t-value was >±1.96, it implied that PSS was significantly related to students’ ATSAP (see
Table 5). Therefore, the null hypothesis is rejected.
4.4. The Relationship among Self-Concept (SC), Emotional Intelligence (EI) and Problem-Solving Skills (PSS)
Null Hypothesis 4: There is no significant relationship between self-concept (SC) and emotional intelligence (EI) among secondary school students in the state of Sokoto.
The relationship between EI and SC was positively strong and significant with a t-statistics value of 9.083 which was >±1.96 (p value 0.000).
Null Hypothesis 5: There is no significant relationship between emotional intelligence (EI) and problem-solving skills (PSS) among secondary school students in the state of Sokoto.
EI had a relationship with PSS, but the relationship was not significant with a t-statistics value of 0.888, which was <±1.96 (p value 0.375).
Null Hypothesis 6: There is no significant relationship between self-concept (SC) and problem-solving skills (PSS) among secondary school students in the state of Sokoto.
Students’ PSS was related to their SC but the relationship was also not significant with a path coefficient of 0.014 and a t-statistics value of 0.296, which was <±1.96 (p value 0.768).
Table 6 indicates that there exists a relationship among the three variables. Since SC and EI were significantly and positively related, an increase in SC would lead to an increase in EI and vice versa (see
Figure 5).
To validate the proposed conceptual model, the path coefficient between two latent variables was assessed. Previous research has indicated that the path coefficient value needs to be at least 0.1 to account for a certain impact within the model [
81,
82]. Within the structural model, each path connecting two latent variables represented a hypothesis. Based on the analysis conducted on the conceptual model, it permits the researcher to accept or reject each hypothesis as well as understand the strength of the relationship between dependent and independent variables.
Assessment of the path coefficient in the current study, as shown in
Figure 6, shows that some of the null hypotheses were supported while others were not supported. By using the SmartPLS3 algorithm output, the relationships between independent and dependent variables were examined. However, in SmartPLS3, in order to test the significant level, t-statistics for all paths were generated by using the SmartPLS3 bootstrapping function. Based on the t-statistics output, the significant level of each relationship was determined.
Table 7 lists the path coefficients, observed
t-statistics, and significance levels for all hypothesized paths. Using the results from the path assessment, the acceptance or rejection of the proposed hypotheses was determined.
4.5. Summary of Findings
Based on the research findings, it was discovered that SC had an influence on the students’ ATSAP. Students’ ATSAP was found to be influenced by their PSS. Furthermore, it was demonstrated that EI did not influence the ATSAP. Moreover, PSS was found to have an influence on students’ ATSAP. Finally, there exist relationships amongst SC, EI, and students’ PSS. The relationship between SC and EI appeared to be very strong and positive, however, the relationship between SC and PSS was not significant, while the relationship between EI and PSS was also found to be non-significant. A structural model based on the responses of the students was developed. The model was based on four constructs, which were: SC, EI, PSS, and ATSAP.
Table 8 below shows the summary of the findings based on the research hypotheses provided under each research question. Six hypotheses were tested where the study found that H01, H03, and H04 were not supported by the empirical findings, whereas H02, H05, and H06 were supported.