INCREASE STUDENTS' INTEREST THROUGH THE MBT-03 TRAINING MACHINE APPLICATION INTO AK GUN PRACTICE COURSE

: This article aims to briefly assess the advantages and limitations of the BT-03 shooting machine when it is applied to the practical teaching of the practical module of National Defense and Security Education (NDSE) at Ho Chi Minh City University of Technology and Education. Through surveying the Likert scale (5 levels) with 340 students and 28 experts, the author conducted quantitative statistical analysis to compare the interest of learners and lecturers after their experience with this device. The results showed that both students and lecturers highly appreciated all 10 observed variables affecting the excitement through the application of the MBT-03 exercise machine. This is the basis for universities and national defense education centers to consult and invest in shooting machines that combine information technology in teaching. Thereby, it helps to innovate teaching methods in a positive way and contributes to improving the quality of NDSE.


Introduction
The application of technology in teaching (educational technology) is becoming popular and changing traditional teaching methods, thereby increasing learners' interest and improving teaching quality.In which, the subject of NDSE is typical [3,8,9].
The current popular and effective teaching technology can be applied and developed in the following directions: Building lectures (PowerPoint, Canva, myViewBoard); Classroom Management (Moodle, Schoology); Exam organization and exam fraud prevention (Azota, EduNow); Using smart technology devices (Smart Interactive Displays, Interactive Projectors); Data storage and information sharing (Google Drive, OneDrive, FreeCommander) [1].For the subject of NDSE, representing practical creativity, it is impossible not to mention the MBT-03 shooting Machine.
The MBT-03 shooting machine is the product of scientists from the Weapons Department, Military Technical Academy (Vietnam) with many outstanding advantages over existing training equipment, due to the application of modern technology.
MBT-03 is a training aid device that uses optical imaging technology, connects to a computer, and uses simulation techniques to practice and evaluate the results of AK submachine gun training.It is used for units of the armed forces and for teaching students.
Putting this device into use assumes high accuracy at shooting ranges of 100m or reduced ranges (error ±1cm on target).In particular, the postures and movements of the shot are almost realistic, the trigger force is almost like the real feeling.
Vivid image (computer screen shows gun dribbling during aiming).When the trigger is pulled, the bullet wound is left on the target with a simulated explosion.In particular, it can be practiced in all weather conditions.In addition, the computer will automatically calculate the score, read the results to the speaker as well as store and print it to the printer [10].
The initial application of the MBT-03 device to teaching the practical course of defense and security education at the Center for National Defense, Ho Chi Minh City University of Technical Education has brought positive effects by raising the interest of students.

Samples and research methods
The research sample includes 340 male and female students with normal health belonging to HCMUTE's faculties, who have participated and completed the practical module of NDSE; a collective of lecturers of NDSE (organic and visiting) of the Center for NDSE, HCMUTE (28 people).
The research methods include methods such as Analysis and synthesis of documents, Sociological investigation, Math and statistics.

Building survey tools (questionnaire)
After finding out the theoretical basis and designing the questionnaire, the research was conducted in the following two steps: Step 1: Preliminary research was conducted through a pilot survey of 30 students based on some pre-prepared criteria and interviews to explore related issues.
Step 2: Formal research.On the basis of the calibrated scale after interviews and mock surveys, the official survey was sent to interview lecturers and students.
Using the t-student distribution is a probability distribution used to estimate the mean of a population to establish confidence intervals for the estimate of the population mean and is also used in the hypothesis testing process [11].
In the topic, using t-student to compare the two mean values of the two sample groups of lecturers and students about the assessment of observed variables affecting students' interest through the application of the MBT-03 shooting machine.
Using the t-student distribution to estimate the mean of a population to establish confidence intervals for the estimate of the population mean and also used in the testing of statistical hypotheses [11].

The initial situation of teaching and learning the practical module of NDSE at the Center for NDSE, HCMUTE
HCMUTE operates under the mechanism of self-reliance and comprehensive selfresponsibility (Decision No. 973/QD-TTg dated June 30, 2017).NDSE work is concerned by the Party Committee, School Council, and School Board of Directors, led and directed closely, the Center for NDSE presides over and develops plans together with agencies, and departments throughout the school to effectively carry out the tasks of NDSE for students.
The scale of training and teaching NDSE is about 6000-6500 students/year.NDSE teaching space is nearly 5ha.The staff and lecturers of the NDSE Department are young, healthy, energetic, enthusiastic, have a high responsibility in their work and always identify well the tasks of dedication and service to learners.Facilities for the subject of NDSE at the University are properly invested.Specifically: Sports field, training ground, model of learning equipment, sound, light, military equipment, guns and other specific equipment to serve well for learning practical contents; HCMUTE's Center for Defense and Security Education is fully equipped with military equipment: AK-47, CKC, B40, B41 gun models; converted AK-47 gun, MBT-03 training machine, set of fake sound equipment and other equipment (according to Circular No. 01/2018/TT-BGDDT).Particularly, the MBT-03 training equipment has been equipped with 07 sets.This is a necessary condition for organizing teaching and has contributed to raising students' interest through the practical training session of Defense and Security Education.

The level of interest of students and lecturers after applying the MBT-03 shooting machine
The curriculum is applied according to Circular No. 05/2020/TT-BGDDT dated March 18, 2020 of the Minister of Education and Training on the NDSE Program in pedagogical intermediate schools, pedagogical colleges and universities and higher education institutions.
Accordingly, the total number of periods of the program is 165 periods, including 04 modules (theory and practice): Session 1 -45 periods (theory) divided into 09 sessions, of which there are 08 lessons studied in the classroom and 01 field visit.
After 2 years of practical application of the MBT-03 shooting machine for Defense and Security Education classes, interest results have been obtained in teaching and learning in a positive and positive direction.The obtained survey results presented in Table 2 reflect the agreement to confirm the superiority of the observed variables affecting the excitement of lecturers and students.
Specifically: 78.6% of lecturers' opinions and 95.3% of students' opinions agree with YT1_Simple operation; 75% of lecturers' opinions and 92.6% of students' opinions agree with YT2_Quick implementation of practice; 92.8% of lecturers' opinions and 91.2% of students' opinions agree with YT3_Feeling (force of trigger) is like shooting a real gun; 89.3% of lecturers' opinions and 10.7% of students' opinions agree with YT4_Sound effects, vivid images; 82.1% of lecturers' opinions and 17.9% of students' opinions agree with YT5_High reliability and accuracy; 89.3% of lecturers' opinions and 10.7% of students' opinions agree with YT6_Less affected by weather and climate conditions; 92.9% of lecturers' opinions and 86.5% of students' opinions agree with YT7_Favorable layout; 85.7% of lecturers' opinions and 86.8% of students' opinions agree with YT8_Analysis of errors in each key area of the practitioner; 82.1% of lecturers' opinions and 85.6% of students' opinions agree with YT9_Store the results in the computer and print the results easily; 96.4% of lecturers' opinions and 92.4% of students' opinions agree with YT10_Safer than shooting a real gun.
Comparing the observations of the same subjects of the lecturers, it was found that the agreement overwhelmingly prevailed over the disagree level in all 10 observed variables.This is clearly shown by the calculated chi-square indexes which are larger than the table's chi-square (the difference is statistically significant with P<0.05 ~ 0.01).Similarly, in the observed variables in the same student object, the level of agreement overwhelmingly dominates over the disagree level in all 10 observed variables of the calculated chi-square index, which is larger than the table chi-square (the difference is a statistically significant difference with P<0.001).
Comparing the judgments of observed variables between lecturers and students through the Pearson Chi-Square index, it was found that all 10 variables on the level of assessment of factors affecting the excitement of lecturers and students through All MBT-03 shooting machine applications have Sig < 0.05.Because of sig.< 5%, so the corresponding variables between the two subjects of lecturers and students are related.This is even more obvious (when surveyed using the Likert scale -5 levels) to compare the values of observed variables between lecturers and students through the tstudent index.The research results in Table 3 and Chart 1 also show that the observed variables are highly appreciated by both lecturers and students.The mean values of the observed variables assessed by the lecturer ranged from 3.81 to 4.25.In which, the criteria most appreciated by lecturers "YT2_Implement practice quickly" mean = 4.25; the criteria rated the highest by students is "YT5_High reliability and accuracy" with = 4.43… It can be seen that there is no significant difference in the values of observed variables between lecturers and students (Sig = .017~.814> .05).Overall, both students and lecturers highly rated all 10 observed variables, mean = 3.54 ~ 4.43 (in the range of Agree to Totally Agree).Or it can be concluded that there is no significant difference (similarity) about the excitement through the application of the MBT-03 exercise machine between lecturers and students.x YT1_"Simple operation"; YT2_"Rapid Practical Deployment"; YT3_"Feel (force of trigger) like shooting a real gun"; YT4_"Sound effects, vivid images"; YT5_"High reliability and accuracy"; YT6_"Less affected by weather and climate conditions"; YT7_"Convenient layout space"; YT8_Analysis of errors in each of the practitioner's key areas; YT9_"Store results in computer and print results easily"; YT10_"Safer than shooting a real gun".After 2 years of practical application of the MBT-03 shooting machine for Defense and Security Education classes, the interest in teaching and learning of lecturers and students through 10 observed variables has been enhanced in the following directions.positive direction.This is the necessary basis for organizing teaching and learning in order to contribute to raising the interest of teachers and learners in the practical course of NDSE.
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Figure 4 .
Figure 4. Comparison the average value of factors affecting the excitement of lecturers and students through the application MBT-03 shooting machine at Center for National Defense, HCMUTE

Table 1 :
Evaluation of mean values by interval

Table 2 :
Comparison of factors affecting the excitement of lecturers and students through the application MBT-03 shooting machine at Center for National Defense, HCMUTE

Table 3 :
Comparison of t-students of factors affecting the excitement of lecturers and students through the application of the MBT-03 shooting machine