1. Introduction
Rapid technology development affects education, where technology-based learning tools and media are more attractive and interesting, facilitating their proficient use by students [
1,
2]. During the COVID-19 pandemic, students utilized technology-based media to learn new material [
3,
4,
5]. Most parents in Indonesia have little time to accompany their children to study at home. They also ignore the burden of their homework, causing tremendous pressure on students. Parents hope that technology could accompany and assist students in reviewing and preparing lessons [
6,
7]. However, the use of gadgets may not be maximal without strict supervision, leading to undesired learning outcomes.
Learning mathematics with traditional approaches is boring because students may not master new knowledge [
8]. Teachers should design exciting learning using relevant media to improve achievement and satisfaction in mathematics [
9]. Junior high school students in Indonesia often use gadgets to watch YouTube [
10,
11]. Mathematics teaching and learning activities in Indonesia’s big cities also use a flipped learning approach and micro-lectures. Most junior and senior high school students have smartphones and a few own tablets. School and teachers can take benefit from this situation, where smartphones and technology-based gadgets support the mathematics learning process. Therefore, micro-lectures is one of the preferred video-based learning media increasingly used during the pandemic to support students in online learning [
12,
13]. Micro-lectures contain videos with instructions that promote students to explore, interact, analyze, evaluate, and solve problems [
14,
15]. The Indonesian government, curriculum ranks, schools, and teachers expect that micro-lectures could be improved. This is because technology-based media increase learning interest and satisfaction, and contribute to improved outcomes.
In the last decade, many studies have examined the benefits of micro-lectures to learning [
16,
17,
18]. Li [
19] described the benefits of micro-lectures to assist in learning surgical courses, and other studies used this media for flipped classrooms [
14,
15,
20]. However, few studies have examined the micro-lectures effect on student learning satisfaction, especially in mathematics in junior high schools. As a new medium for learning mathematics in Indonesia, it is important to determine whether micro-lectures brings satisfaction to learning mathematics lessons. Furthermore, there is a need to determine the factors affecting learning satisfaction when using micro-lectures in mathematics and the perspective of junior high school students on their learning achievement. Understanding the effect of micro-lectures on learning satisfaction and achievement is critical. Studies have shown that satisfaction has the most significant impact on student learning success [
21,
22,
23]. Therefore, satisfaction becomes the main focus in teaching and learning activities [
24,
25].
This study aimed to analyze the factors affecting learning satisfaction and achievement using micro-lectures in mathematics. It supports previous studies that suggest investigating the effect of implementing micro-lectures in mathematics lessons. The information provided is relevant to teachers and related agents regarding the significant factors of micro-lectures on learning satisfaction and achievement in mathematics in developing countries. The contribution would help develop micro-lectures in the future and increase knowledge for teachers and schools on this media. Part two of this paper presents a literature review and theoretical framework, followed by methodology, results, discussion, implications, and conclusion in parts three, four, five, six, and seven, respectively.
2. Literature Review
2.1. Learning Satisfaction with the Help of Micro-Lectures
Micro-lectures is a 5–10-min video-based learning medium explaining an order or discussing an important topic [
26]. This medium is growing in popularity and is increasingly implemented in teaching and learning at the K-12 level [
27]. This necessitates considering student attitudes, learning achievement, and satisfaction. Studies have shown that learning satisfaction relates to learning achievement [
28,
29,
30]. Like other technology-based learning media, micro-lectures cannot be successful unless students have a good attitude and are satisfied with learning mathematics. Several studies have shown that the effects of tool-based technology are not maximal [
31,
32]. The effect of technology-based learning media cannot be generalized regarding education levels, implying the need for further analysis.
Studies on learning satisfaction in learning mathematics at junior high school level are still limited [
33,
34]. Costley [
35] examined the effect of learning satisfaction on behavioral intention to use video lectures. The results showed that learning satisfaction with video lectures relates to continuous intention. Furthermore, De [
21] analyzed the effect of video clips on learning satisfaction in mechanical engineering. Wang [
36] examined the teachers’ expression of learning satisfaction in video lectures. However, most of these studies on learning satisfaction were performed in universities and did not focus on mathematics. This implies a need for further studies on learning achievement and satisfaction with micro-lectures in mathematics, especially in junior high schools.
2.2. Micro-Lectures on Mathematics in Indonesia
Micro-lectures have emerged with great potential when education requires technology-based media [
16,
37,
38]. This media is student-centered, more varied, and open-ended, providing students with many opportunities and time variations [
39]. Since micro-lectures’ initial focus was on knowledge, their use, position, and effect on mathematics should be investigated further.
In Indonesia, micro-lectures began to develop as a mathematics learning medium during the pandemic and continued to be used during the post-pandemic period. The media has many variations depending on the purpose and manufacture. In Indonesia, it usually comprises 5–10 min video clips on solving difficult math questions, includes a contextual approach, and is packaged with interesting animations [
40]. Teachers use the YouTube platform to spread their micro-lectures used by students to review the lesson and also applied to the flipped classroom [
13,
41]. However, further studies should examine student attitudes and satisfaction toward micro-lectures in mathematics lessons in Indonesia.
Several parameters could measure the learning process when teachers use micro-lectures in mathematics lessons. In Indonesia, micro-lectures can be integrated in two ways. First, they are given before lessons as a preview material for students. Second, they are used after class to help students review mathematics lessons or aid them with homework. The success of using micro-lectures is seen when used independently by students outside school hours. The second step examined the effect of micro-lectures on students’ interest in learning. The last step analyzed whether micro-lectures improve student learning outcomes during the pandemic or new normal compared to other mathematics learning approaches.
2.3. Study Model and Hypothesis Development
The study questions were answered using the acceptance model theory (TAM) [
42] and the Expectation Confirmation Model (ECM) [
43]. In our research model, learning satisfaction towards micro-lectures in mathematics is affected by behavioral intentions, perceived usefulness, and perceived ease of use. Attitude affects behavioral intentions and learning satisfaction. In ECM [
44], the determinant confirmation significantly impacts perceived usefulness and learning satisfaction. This study combined the TAM and ECM models and added innovative learning and attitude as predictors from the literature review [
4,
44]. Mathematics teaching and learning activities have an innovative approach that may relate to micro-lectures satisfaction.
Figure 1 shows a more complete proposed model.
Perceived ease of use is an individual’s belief that using new systems and approaches does not require much effort [
42]. In this study, PEU described students’ feeling that using micro-lectures did not require much effort to help them learn mathematics. Previous studies showed that this parameter related to attitude and behavioral intention [
29,
45,
46]. Furthermore, perceived ease of use has the greatest positive effect on using new technology. Therefore, the initial hypothesis is that PEU relates to attitude and behavioral intention.
PU is an individual’s belief that using technology improves their work performance [
47]. This parameter represented the students’ belief that using micro-lectures improved their learning scores and helped them review and understand new mathematical material. When students feel the new technology improves their performance, their satisfaction increases, and their attitude improves [
48,
49]. Previous studies found that PU related to attitude, learning achievement, and satisfaction [
50,
51,
52]. It had a positive effect on students’ attitudes to using new technologies. Therefore, the subsequent hypothesis is that PU relates to attitude, learning achievement, and satisfaction.
Innovative learning constitutes a competitive advantage, complexity, variety, and new ways of teaching and learning activities [
53,
54,
55]. In this study, micro-lectures are considered a new learning media provided by mathematics teachers and are included in innovative learning. Furthermore, innovative learning positively impacted students’ attitudes and learning achievement [
56,
57]. There is also a significant relationship between innovative learning and learning satisfaction [
58,
59]. Therefore, the preliminary hypothesis is that innovative learning significantly affects student attitude and satisfaction in learning mathematics using micro-lectures.
Attitude is an individual desire to use a technology or system [
4]. This study defined attitude as the students’ attitude and desire to use micro-lectures to learn mathematics. Many theories have been developed to examine the attitudes of teachers and students towards new technologies [
60,
61,
62]. The theories show that attitudes are affected by many factors and affect learning achievement and satisfaction. Therefore, the hypothesis is that attitude relates to learning achievement and satisfaction.
Expectation confirmation is the perception of using technology and the expected performance [
63]. In this study, expectation confirmation referred to students’ perceptions of the suitability of using micro-lectures to support their mathematics learning and its effects on the outcomes. Previous studies found a significant relationship between EC and satisfaction [
43,
64,
65]. There is also a relationship between EC and PU in technology-based learning media. Therefore, the hypothesis is that EC has a significant positive relationship with PU and SAT.
Many studies explained that behavioral intention comes from attitude [
66,
67,
68]. BI is a specific activity or behavioral tendency after using a product or receiving a service [
69]. It is a strong indicator for using a product or system in the future. This study defined positive behavioral intention as the students’ willingness to use micro-lectures to learn mathematics in the future. Studies often analyze the effect of BI on using new technology, such as the main and indirect effects of using learning media in mathematics lessons [
26,
70]. Therefore, it is important to examine students’ behavioral intention to use micro-lectures in mathematics and their satisfaction.
Satisfaction is widely used to measure individual happiness when using technology or a system [
71,
72]. The relationship between learning satisfaction and achievement could be synergistic and influential through the students’ experiences. High learning satisfaction is directly proportional to learning achievement due to some reasons.
First, inspiration, learning success, and graduation rates induce learning satisfaction. Second, learning motivation is affected by satisfaction [
73] and drives learning success. Third, learning satisfaction is related to learning achievement [
28,
74], as seen when students are satisfied with getting high grades. Students with high learning satisfaction prefer studying and taking more programs outside school hours. Therefore, the hypothesis is that satisfaction relates to learning achievement in mathematics.
This study used perceived ease of use, confirmation, and innovative learning as independent variables. The intermediate variables were learning satisfaction, attitude, and perceived usefulness. Additionally, the dependent variables were learning achievement and behavioral intention. The study proposed 17 hypotheses presented in
Figure 1 and
Table 1.
3. Methodology
3.1. Design
In Indonesia, micro-lectures are implemented using laptops, tablets, or smartphones owned by students at home because the media is flexible and accessible anytime. This media is used in the new normal period, where students have returned to school. Teachers give micro-lectures to students outside school hours to review and prepare for learning before class. This study distributed a questionnaire with 23 items given to students of public junior high schools in Cimahi, Indonesia. All students had used micro-lectures for at least one year during the pandemic. Therefore, they had the full experience using the media to learn mathematics.
3.2. Instrument
A survey instrument and the data collected were exposed to depth analysis. Details of the questionnaire are presented in
Appendix A. The questionnaire contained eight constructs, where all measurements were adopted from the literature review and carefully modified according to the context.
3.3. Data Collection and Analysis
Data were collected using online questionnaires to ensure that participants were voluntary and anonymous. The teacher provided information on the purpose of this questionnaire, explaining that the data were not for distribution. Also, the teachers informed students that there was no coercion in case students did not want to fill out the questionnaire. Permission to collect data from 233 students was obtained from the homeroom and mathematics teachers. This study used SEM because it was suitable for more than 200 respondents. In the first stage, the data were entered into the SPSS for the initial analysis. The respondents consisted of 103 male and 130 female students. As many as 98 students were in grade 7, including 56 females and 42 males. Also, 71 were grade 8 (40 females and 31 males), and 64 were grade 9 (34 females and 30 males).
The data were analyzed using partial least squares structural equation modeling (PLS-SEM) assisted by SmartPLS 3.0 software [
75]. This method is widely used to analyze simultaneous relationships between variables. Furthermore, SEM is considered a confirmatory approach, unlike other descriptive approaches that cannot test theoretical models [
76]. This study used SmartPLS software to test measurement and structural models [
68].
4. Results
As explained by Hair [
77], this study used SEM as the main statistical method divided into three stages. The first stage determined the data normality, the second stage measured construct, convergent, and discriminant validity, and the last stage was the structural modeling approach.
4.1. Descriptive Statistics and Normality Test Data
Table 2 shows 3.970 as the highest average score for learning achievement and 3.584 as the lowest for attitude 3. This indicated that most students felt that micro-lectures affected their learning achievement. Students had relatively positive responses, showing they were quite satisfied with using micro-lectures when learning mathematics. The data normality was tested by assessing the kurtosis and skewness values [
78]. The skewness and kurtosis values at the |3| limit indicate that the data were normally distributed and included in the acceptance value [
79].
4.2. Construct Validity of the Measurements
Construct validity shows how an item assesses a structure and the evaluation item [
80]. The items supposed to measure constructs should have greater weight in their correspondence than in other constructs. According to Hair [
77], construct validity is measured using the comparative incremental fit index, and the Tucker-Lewis coefficient should be close to or greater than 0.90. This study obtained CFI and TLI values of 0.895 and 0.93, respectively. The root means square error of approximation was less than 0.10, and the RMSEA value was 0.037.
The instrument contained eight elements of endogenous and exogenous variables, each with several items.
Table 3 shows the components with factor loading for all variable constructs. All item loadings exceeding the proposed limit value of 0.70 indicated that convergent validity was good [
81]. It varied from the lowest value of 0.769 (PE3) to the highest factor loading value of 0.958 (BI2).
Table 3 shows the loading factor for all items.
4.3. Convergent Validity
Table 4 shows composite reliability with a score exceeding 0.70 proposed by Hair [
75]. The Cronbach alpha ranged from 0.876 to 0.960, higher than the recommended average value of 0.7. Moreover, the lowest and highest AVE values were 0.703 and 0.888, respectively, exceeding the recommended value of 0.5. This indicates that the convergent validity fulfilled the standard.
Table 4 presents the CFA findings for the measurement model.
4.4. Discriminant Validity
Discriminant validity shows the differences between constructs. This study adopted Fornell’s criteria [
82] by examining the square root of AVE for each latent variable.
Table 5 shows that the AVE square root is greater than the other correlation values between latent variables, implying that discriminant validity fulfilled the standard criteria. Furthermore, discriminant validity is also measured by looking at the HTMT [
83]. Good discriminant validity has a value on the HTMT not exceeding 0.9.
Table 6 shows the HTMT table in detail.
4.5. Collinearity Test (Variance Inflation Factors-VIF)
Hair [
75] suggested analyzing the data collinearity before checking the structural model. The variance expansion factor in the study model should be less than five to imply no collinearity.
Table 7 shows that the VIF value of all variables ranges from 1.000 to 4.525 and does not exceed the critical number 5. Therefore, the model does not have multicollinearity problems, and the result is relatively stable.
Reliability, convergent validity, discriminant validity, and collinearity tests were performed using the PLS-SEM technique. The results showed that the items adopted in this study were reliable and valid.
5. Structural Model Analysis and Hypothesis Testing
A structural model with the PLS technique was used to analyze the path coefficient, t-statistics, standard error, and R
2, determining the strength and direction of the relationship between constructs [
84]. S-statistics indicate the magnitude of effect, and R
2 shows the variance explained [
85]. The explanatory power of the suggested models is determined by the R
2 value [
46]. The 5000 bootstrap resampling method was used to determine the t-statistic and standard error [
67].
5.1. Coefficient of Determination: R2 Value
R
2 explains the variance in the dependent variable indicated by the independent variable. A greater R
2 value implies a better predictive potential of a structural model. It is important to ensure that the R
2 value is high enough for a model with explanatory power. Falk and Miller [
86] recommended an R
2 value greater than 0.10 for the variance described from the endogenous concept to be considered sufficient. According to Cohen [
87], the value of R
2 is better when it is more than 0.26, though 0.02 is acceptable. The 1998 chin [
88] criteria are more stringent, explaining that a good R
2 value is above 0.65 but acceptable at the 0.19 level.
Table 8 and
Figure 2 show that the R
2 value was quite high. This implies that the model was good at explaining the factors of learning satisfaction in mathematics using micro-lectures.
5.2. Assessment of Effect Size (f2)
The effect size in SEM, usually symbolized by f
2, measures the impact of the predictor on the predicted construct when an exogenous construct is removed from the model [
88]. According to Hair [
75], f
2 less than 0.02 has a small effect, 0.15 is moderate and higher than 0.35 has a high effect.
Table 9 shows that students’ attitudes, satisfaction, and perceived usefulness on learning achievement have a big effect on attitude. The results support the path coefficient calculation.
5.3. Hypothesis Test
The hypothesis tests determined satisfaction factors when learning mathematics using micro-lectures in Indonesia. The SEM technique tests the hypothetical relationship between one and other variables.
Figure 3 and
Table 10 explain the final structural model based on the measurement model criteria described in the previous section to create a good model.
Table 10 shows the path coefficient, mean, STdev, t-statistic, and
p value for all relationships in the 17 hypotheses. A t-statistic greater than 1.96 or a
p-value smaller than 0.05 indicates that the hypothesis has significant results. In
Table 10, 14 of the 17 hypotheses show significance. H1 (Attitude → Behavioral Intention) and H2 (Attitude → Learning Achievement) paths show significant positive relationships, with (B = 0.292,
p < 0.01) and (B = 0.205,
p < 0.01), respectively. In contrast, H3 is the attitude predictor with the strongest positive effect on Learning Satisfaction (B = 0.506,
p < 0.001). H4 (Behavioral Intention → Learning Achievement) path showed a significant positive relationship (B = 0.153,
p < 0.05), whereas H5 (Confirmation → Learning Satisfaction) did not show a significant relationship (
p > 0.05). H6 also has a positive relationship with perceived usefulness (B = 0.557,
p < 0.001). Hypothesis 7, 8, and 9 show that innovative learning relates to attitude (B = 0.225,
p < 0.001), learning achievement (B = 0.213,
p < 0.001), and learning satisfaction (B = 0.557,
p < 0.01). Satisfaction shown in hypotheses 10 and 11 has a significant positive relationship with student behavioral intention to use micro-lectures to learn mathematics (B = 0.257,
p < 0.01). However, it does not significantly relate to learning achievement (
p > 0.05). Predictors of easy to use in hypothesis 12 and 13 had a significant positive relationship with attitude (B = 0.257,
p < 0.001) and student behavioral intention to use micro-lectures (B = 0.257,
p < 0.05). Perceived usefulness showed no significant relationship with behavior intention (
p > 0.05) but it related to attitudes towards micro-lectures (B = 0.113,
p < 0.001), learning achievement (B = 0.550,
p < 0.01), and learning satisfaction (B = 0.346,
p < 0.001). Therefore, perceived usefulness has the strongest relationship with learning achievement and attitude.
6. Discussion
This study aimed to determine the predictors related to the learning satisfaction of using micro-lectures in mathematics with the PLS-SEM model. It also proposed how these factors had a relationship with learning achievement. In the hypothetical model, the technology acceptance (TAM) and the ECM models were combined and modified by adding an innovative learning predictor. This section discusses the findings related to the study model.
First, perceived usefulness had the greatest effect on learning achievement and was the second largest factor affecting learning satisfaction. Junior high school students in Indonesia felt that micro-lectures should have high effectiveness in their achievement in learning mathematics. Furthermore, the effectiveness in mathematics was the main factor affecting learning satisfaction. Students fetl that mathematics is difficult and requires much effort to master. Therefore, the effectiveness of this media would increase their learning satisfaction. Schools, teachers, and developers should develop this as additional learning media. Micro-lectures should help students with difficulties understanding material and change the classroom atmosphere to be more relaxed and fun [
89,
90]. Furthermore, perceived usefulness had no relationship with behavioral intention. Students assumed that the effectiveness of micro-lectures alone could not affect behavioral intention. This is because using the media outside school or at home still had factors from parents, facilitating conditions, and the ease of use that might affect the utilization of micro-lectures to learn mathematics.
Second, perceived ease of use affects students’ attitudes and behavior intention. Many technology-based learning media in Indonesia are not convenient for students to use [
91]. For instance, they require large internet quotas, are difficult to download, or require additional APP. Junior high school students lack personal gadgets, and their parents must approve of all technology-based learning media [
92]. Many parents do not provide gadgets or tablets for their children to study, making it difficult for them to learn. Additionally, internet use in this country is still expensive, and not all families are capable of providing internet quotas to students. These are some obstacles to teaching and learning activities that require the internet. Consequently, students assume that the ease of use affects their intention to use this media to learn. This indicates that teachers and schools should provide micro-lectures offline or send them via WhatsApp to parents. It is expected that the duration is not too long to require a large internet quota when downloading.
Third, student satisfaction affects their intention to use micro-lectures in the future. However, this study found no significant relationship to learning achievement. Satisfaction alone cannot affect learning achievement because there are many more important factors.
Fourth, using micro-lectures as innovative learning in Indonesia relates to junior high school students’ attitudes, learning achievement, and satisfaction. To avoid boredom, a teacher should have many innovations to teach [
20,
93]. The results showed that the continuous use of teaching methods reduces the learning model’s effectiveness, a phenomenon also known as the Hawthorne effect [
94]. Therefore, students feel that micro-lectures are related to their learning satisfaction and achievement. It is expected that teachers and developers could innovate and be creative by adding animations, cartoons, and learning approaches that could be mixed with micro-lectures.
Fifth, students’ attitude toward micro-lectures has the biggest positive importance on learning satisfaction. It also has a significant positive effect on learning achievement and behavioral intention. When students feel that micro-lectures are a good medium to help them learn mathematics, they become more willing to use the media, increasing their satisfaction. Therefore, schools and teachers could use this information to improve students’ attitudes towards micro-lectures to increase their satisfaction and achievement.
7. Theoretical and Practical Implication
This study aimed to examine the factors affecting student learning achievement and satisfaction using micro-lectures in mathematics lessons in Indonesia. It combined the TAM and ECM models and added innovative learning predictors. The proposed model explained 76.9% and 77.4% of factors related to learning achievement and satisfaction, respectively.
The results have several theoretical implications; First, the study has contributed to the knowledge of using micro-lectures in mathematics. The TAM and ECM models could be combined with additional predictors for micro-lectures and other technology-based mathematics learning media. Moreover, the validated model could be adopted to determine student perception in other technology-based learning media and dynamic mathematics software. Further studies could add more predictors such as social influence, motivation, and facilitating conditions. Using micro-lectures, these predictors might increase the R2 value and affect student learning satisfaction and achievement.
Second, the model validates the other factors affecting achievement and satisfaction when learning mathematics using micro-lectures. Attitude and perceived usefulness are important factors of learning achievement and satisfaction with micro-lectures. Although these factors were validated, some insignificant factors should be investigated further. Learning satisfaction has a negative but insignificant relationship with learning achievement. The increase in learning satisfaction when using micro-lectures makes students rely on this media without exploring other resources. In contrast, the decrease in efforts and enthusiasm lowers learning achievement. Junior high school students might not consider using micro-lectures from a theoretical perspective. However, different results might be obtained when students have more experience using various technology-based learning media such as VR, AR, MR, 3D printing, and other learning media.
Third, this model helps us to understand the students’ responses to using micro-lectures in mathematics. It could be adapted to understand various conditions and approaches as learning support. The instruments and methodologies in this study provide knowledge regarding student learning achievement and satisfaction when using this media in mathematics. The questionnaire could be adapted for learning media such as AR, MR, or other simulators. Furthermore, the questionnaire and model could be validated, extended, and used in various research contexts, different populations, and other technologies, such as high schools or colleges, and other subjects such as physics or chemistry. This suggestion would help understand how these factors explain learning satisfaction and achievement in similar media, particularly in TAM and ECM in micro-lectures.
Practically, this study provides knowledge about student perspectives. Micro-lectures have many advantages and opportunities for students. However, introducing and incorporating technology into the curriculum impacts learning satisfaction, achievement, and behavioral intention. This study’s participants were junior high school students aged 12–15. Therefore, they may find it difficult to use technology-based learning media due to various factors. This affects the students’ perspective, lowering their experience and confidence in using this media. In this context, students could benefit from the experience and understand the advantages of this media. They could gain knowledge before implementing the media in future teaching and learning activities. Although some hypotheses may be insignificant now, some factors could improve as micro-lectures become widely used in mathematics and become part of the curriculum and new teaching methods.
8. Limitation
This study has several limitations, but the findings are no less diminished. First, the findings may not be generalizable to all junior high school students. However, the results could provide useful information for teachers and schools focusing on developing and using micro-lectures in mathematics. Second, the data were collected by purposive sampling, where students responded to the study instrument subjectively and based on their personal experiences. Therefore, the findings cannot be generalized over some time. Third, the scope of this study was limited to factors relevant to micro-lectures. Other relevant factors that may provide much new knowledge were not included.
Further studies should examine the factor model and make appropriate revisions. They could be gender, experience, and education level factors that may affect students’ perspectives on micro-lectures. Furthermore, students should pay attention to the health risks of excessive use of this media via smartphones or tablets, indicating that future studies should include the self-efficacy factor. Additionally, studies on actual use, behavioral intention, and interest in learning using micro-lectures in mathematics are highly recommended.
9. Conclusions
This study is probably the first to combine the TAM and ECM models with an innovative learning variable to analyze the factors affecting learning achievement and satisfaction using micro-lectures in mathematics among junior high school students. It also demonstrated combining and extending the theoretical model using PLS-SEM through structural model fit. Micro-lectures are widely used in Indonesia and provide many new opportunities for teachers and students. However, integrating this media to be accepted by students is quite complicated, necessitating exploring the factors affecting learning satisfaction and achievement. This study examined the factors affecting learning satisfaction and achievement using micro-lectures by combining the TAM and the ECM models and adding innovative learning predictors. According to our findings, the perceived usefulness and students’ attitudes towards micro lectures must be considered as the main factors that might affect students’ learning satisfaction and achievement in mathematics. The proposed model is valid and reliable and could be useful for future studies in different contexts, especially in developing countries.