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Discovery learning is a method of inquiry-based instruction, in discovery learning, learners have opportunities to discover facts and relationships for themselves. In Vietnam, this method was approached from many decades ago. The paper... more
Discovery learning is a method of inquiry-based instruction, in discovery learning, learners have opportunities to discover facts and relationships for themselves. In Vietnam, this method was approached from many decades ago. The paper will present the results of the investigating mathematics teachers' opinions on the use of discovery learning in teaching geometry in junior schools of Vietnam in the case of instructing topic "trapezoid".
Research Interests: Education, Mathematics Education, Educational Research, Learning and Teaching, Mathematics Education Pedagogy, and 15 moreMathematics Education at Primary Schools, Mathematics Teacher Education, Mathematics Education at High Schools, Educación, Educational Sciences, Educational science, Educational, Education in Vietnam, Educação, Pedagogia, Educational studies, Education Mathematics, Discovery Learning, Educacion, and Educational Mathematics and Sciences
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In Vietnam, secondary school students learn the equation of a circle in Grade 10. Based on how to present this equation in the textbook "Geometry 10" and types of task for students, we believe that some limitations happen to... more
In Vietnam, secondary school students learn the equation of a circle in Grade 10. Based on how to present this equation in the textbook "Geometry 10" and types of task for students, we believe that some limitations happen to students when they solve problems related to the equation of a circle. This paper reports the investigation of 845 students from the Mekong Delta-Vietnam. The results show that our prediction is correct.
Research Interests: Mathematics, Education, Mathematics Education, Educational Research, Learning and Teaching, and 15 moreMathematics Education Pedagogy, Educación, Educational Sciences, Educational science, Eğitim, Educational, Education in Vietnam, Educação, Educazione, Educational studies, Education Mathematics, Education Studies, Errors Commited in Solving Math Problems, Educacion, and equation of circle
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Research Interests:
A mind map is a diagram in which information is arranged visually and sequentially. Therefore, the use of mind maps in teaching has been used by many educators around the world; they showed that it much supports the teaching process of... more
A mind map is a diagram in which information is arranged visually and sequentially. Therefore, the use of mind maps in teaching has been used by many educators around the world; they showed that it much supports the teaching process of teachers and students' learning process. Also, with the mind map approach in teaching mathematics, we conducted experimental teaching in teaching the topics of straight line and circle equations Geometry 10 in high school mathematics program in Vietnam. By using mind maps in reviewing knowledge, in teaching new knowledge and in systematizing knowledge for two experimental classes, we found that the learning results of students in the two experimental classes were actually higher than those of the two control classes. From our experience gained through experimental teaching, we believe that teaching mathematics with the help of mind maps will be a teaching method that contributes to improving the effectiveness of mathematics education in schools. I...
The paper presents the result of a research based on the concept “didactical contract” which was introduced by G. Brousseau in 1980. On the basis of this concept, we predicted students’ errors and verified by the investigation of 60... more
The paper presents the result of a research based on the concept “didactical contract” which was introduced by G. Brousseau in 1980. On the basis of this concept, we predicted students’ errors and verified by the investigation of 60 students who are studying in the “Long Phu” high school – Tam Binh District, Vinh Long Province. These results indicated that the rules of didactical contract could be reasons for students’ errors in solving mathematical problems. Article visualizations:
Research Interests: Computer Science, Education, Mathematics Education, Didactics, Educational Research, and 15 moreLearning and Teaching, Education Policy, Educational Design Research, Educación, Educational Sciences, Educational science, Educational, Educação, Educazione, Educational studies, Mathematical Problem Solving, Didactical Contract, Education Studies, Educacion, and error in mathematics learning
The paper aimed to examine students’ perceptions of the features and tools in GeoGebra. A GeoGebra lesson was conducted involving 43 high school students. The questionnaires were employed to collect the research data. Descriptive... more
The paper aimed to examine students’ perceptions of the features and tools in GeoGebra. A GeoGebra lesson was conducted involving 43 high school students. The questionnaires were employed to collect the research data. Descriptive statistics were used to gauge students’ perceptions toward the software during a GeoGebra lesson. The findings showed that the students’ perceptions toward GeoGebra features for the basic construction of geometry, the transformation angle, and the functions and exporting of images with a mean of 3.87, 3.69, and 4.15. Students’ perceptions toward coordinates and equations were at a very easy level, with a mean of 4.34. The findings indicate that students have positive perceptions about the use of GeoGebra. Therefore, GeoGebra should be used as an alternative to promoting the use of technology in the teaching and learning of mathematics.
The paper presents the results of an investigation of 12 th grade students and mathematics teachers in three secondary schools of Tam Binh district, Vinh Long province (Vietnam) towards errors happening to students in solving problems on... more
The paper presents the results of an investigation of 12 th grade students and mathematics teachers in three secondary schools of Tam Binh district, Vinh Long province (Vietnam) towards errors happening to students in solving problems on “coordinate method in space” topic. From the investigation, we found that students often committed ten different errors in solving problems on the above topic. The mathematics teachers should have positive attitude towards students’ errors because the error detection of students will offer teachers many benefits: (1) to recognize misunderstanding of their students; (2) to adjust their teaching; (3) to do action research to increase the effectiveness of their activities of teaching.
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Research Interests: Psychology and Education
In grade 12 mathematics program in Vietnamese secondary schools, students have an opportunity to learn the concept “integral” and its applications. Thus, it helps them to know the practical significance of mathematics in general and... more
In grade 12 mathematics program in Vietnamese secondary schools, students have an opportunity to learn the concept “integral” and its applications. Thus, it helps them to know the practical significance of mathematics in general and calculus in particular. In addition, they also recognize that mathematics is a unified whole, the subjects of mathematics are consistent and mutually supportive. For example, thanks to integration one can find the formulas for calculating the area and volume of shapes that students have learned in Geometry, and can calculate the area and volume of shapes that it is very hard to find by geometrical tools. With such an importance of integral concept, the question is that: what are students’ restrictions on the application and perception towards concepts “integral” students? This paper presents some results relating to the above two questions.
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Application of information technology to education with the purpose of contributing to improving the quality of education and teaching in general and in teaching mathematics, in particular, is a trend of the world. In Vietnam, this trend... more
Application of information technology to education with the purpose of contributing to improving the quality of education and teaching in general and in teaching mathematics, in particular, is a trend of the world. In Vietnam, this trend has been implemented in high schools for many years. To find out about the status of facilities and teaching related to using information technology (IT) of mathematics teachers in schools in Hau Giang province - Vietnam, we conducted a survey of 71 mathematics teachers by 5 - point Likert scale questionnaire. The survey contents were (1) Current status of facilities for teaching and applying IT; (2) The frequency of using IT in teaching high school mathematics; (3) The software used in teaching mathematics; (4) The learning attitude of students when teachers apply IT in teaching and learning; (5) Students' ability to absorb knowledge in lessons with the support of IT. The results showed that in some schools, facilities for using IT were inadequ...
Teaching methods are one of the most important factors in the teaching process. Today, mathematics educators have used various scientific and technical achievements to improve the efficiency of mathematics instruction in schools. In... more
Teaching methods are one of the most important factors in the teaching process. Today, mathematics educators have used various scientific and technical achievements to improve the efficiency of mathematics instruction in schools. In keeping with that trend, we are particularly interested in information processing theory developed by the American psychologist Gaz. A. Miller in 1956. This theory holds that the process of human’s leaning goes through three types of memory: sensory memory, short-term memory and long-term memory. Based on this idea, we developed a phase –three teaching model and conducted the experiment on teaching concepts of vector in Geometry 10 with activating the above types of memory. This article describes the teaching process we performed and the results obtained from the experiment.
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Mathematics education students in School of Education - Can Tho University (Vietnam) have had opportunities to learn how to use analogical reasoning in teaching mathematics. The question is: “Do the students prefer to select analogy as... more
Mathematics education students in School of Education - Can Tho University (Vietnam) have had opportunities to learn how to use analogical reasoning in teaching mathematics. The question is: “Do the students prefer to select analogy as strategy for teaching mathematics?” The results of the investigation of 52 mathematics education students showed that the students paid little attention to applying analogy to teaching mathematics.
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The problem of employment is always a crucial problem and is the concern of most parents and school students. The survey on the perception of 40 students about vocational guidance was carried out in Nguyen Viet Dung High School in Can Tho... more
The problem of employment is always a crucial problem and is the concern of most parents and school students. The survey on the perception of 40 students about vocational guidance was carried out in Nguyen Viet Dung High School in Can Tho City, Vietnam. Results show that students are very concerned about their future career; students have a proper perception of vocational guidance and recognize well factors which affect their career choice. Article visualizations:
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The paper aims to: (1) present the types of representations in solving mathematical problems;(2) to find out the types of representation used in solving word problems in textbook “Toan 5” (Mathematics 5) of Vietnam; and (3) report the... more
The paper aims to: (1) present the types of representations in solving mathematical problems;(2) to find out the types of representation used in solving word problems in textbook “Toan 5” (Mathematics 5) of Vietnam; and (3) report the results of a survey on using representations of Grade 5 students in solving non-routine mathematical problems. The study results revealed that the students faced many difficulties and had errors sin using visual and symbolic representation.
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Increasing the practicality in mathematics education has been a trend of most countries in the world. With this trend, students find that mathematics is not an abstract subject far removed from reality. One of the pioneers in teaching... more
Increasing the practicality in mathematics education has been a trend of most countries in the world. With this trend, students find that mathematics is not an abstract subject far removed from reality. One of the pioneers in teaching mathematics to be associated with real-life is Hans Freudenthal Dutch mathematics educator. He developed the theory of Realistic Mathematics Education (RME) with the idea that teaching mathematics must start a realistic situation; today this theory has been widely applied not only in the Netherlands but also in many parts of the world. In order to approach RME into mathematics education in Vietnam, we developed the RME-based teaching model and conducted research with the teaching of cosine theorem Geometry 10 to verify its feasibility. The results showed that if the teacher used RME – based teaching, students could learn cosine theorem by abstracting and generalizing from a real situation; thereby, they found that mathematics is very close to life, cre...
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Currently, there is much dynamic math software. They help to provide the user with an intuitive mathematical environment. Also, thanks to the dynamic properties of the software, users can flexibly change mathematical forms and objects by... more
Currently, there is much dynamic math software. They help to provide the user with an intuitive mathematical environment. Also, thanks to the dynamic properties of the software, users can flexibly change mathematical forms and objects by pressing and dragging. Therefore, they have multiple opportunities for surveying, predicting, illustrating, or finding strategies for solving mathematical problems. GeoGebra software is used in this study to find strategies for solving a problem, as GeoGebra integrates and serves many math disciplines. Concerning the math studies solving a problem with GeoGebra's support, this paper devotes particular attention to using Polya's four-step process to a problem. It is a generalized scheme that can be applied to find solutions for all kinds of mathematics. The issue is how to exploit the strength of this dynamic math software if we use this scheme to find strategies for solving a problem. Our research content is to answer the questions: 1) How d...
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Solving mathematical word problems is a difficult, complex and intellectual activity. The formation of problem solving skills is much more difficult than calculation skills because the problems are related to many concepts and a lot of... more
Solving mathematical word problems is a difficult, complex and intellectual activity. The formation of problem solving skills is much more difficult than calculation skills because the problems are related to many concepts and a lot of mathematical relationships. Therefore, students are inevitable to commit errors to deal with them. This study shows the errors of 160 3rd grade students regarding some kinds of word problems in Mathematics 3 in Vietnam. The results indicate that children commit many errors due to many different reasons such as: subjectivity, carelessness, wrong application of the calculation rules, incorrect identification of problem kinds and wrong calculation. Article visualizations:
Research Interests: Education, Didactics, Educational Research, Learning and Teaching, Math Education in Early Childhood Education, and 15 moreEducational Design Research, Educación, Educational Sciences, Educational science, Mathematical Sciences, Educational, Education in Vietnam, Educação, Educazione, Ability, Errors, Mathematical word problems, Education Studies, Mathematic Education, and Educacion
The ability to solve problems is one of the necessary competencies of students. Therefore, forming and developing a problem-solving capacity for students is one of the crucial tasks in teaching in general and teaching mathematics in... more
The ability to solve problems is one of the necessary competencies of students. Therefore, forming and developing a problem-solving capacity for students is one of the crucial tasks in teaching in general and teaching mathematics in particular in elementary schools. This paper is aimed at developing elementary school problem-solving skills associated with the subject of fractions. The sample consisted of 42 fourth grade students who were taught by integrated activities to resolve real-word problems on the subject. A qualitative method was utilized to clarify students' problem-solving skills. The results were demonstrated that their performance of problem-solving skills improved significantly over level scales.
The model "TWA" (Teaching with analogy) is a model of teaching with analogical reasoning, which could maximize many benefits when using analogies. According to the results of an investigation before, we recognized that the... more
The model "TWA" (Teaching with analogy) is a model of teaching with analogical reasoning, which could maximize many benefits when using analogies. According to the results of an investigation before, we recognized that the students of mathematics education at Can Tho University have not tended toward applying analogical reasoning to teaching mathematics. This raised a question: "Did the mathematics education students have some difficulties in applying analogical reasoning to teaching mathematics?" To answer the above question, we conducted the study with the following two objectives: (1) to find out mathematics education students' the ability to apply the TWA model to teaching mathematics contents in secondary schools. (2) to know these students' opinions on advantages and disadvantages of applying the TWA model to teaching mathematics in secondary schools. The study was carried out in Can Tho University - Vietnam in 2014.
The study results were based on the survey data of 24 students studying the master program in math education at Can Tho University, Vietnam. We used the questionnaire to find out the factors affecting students' learning outcomes:... more
The study results were based on the survey data of 24 students studying the master program in math education at Can Tho University, Vietnam. We used the questionnaire to find out the factors affecting students' learning outcomes: Learning time, learning conditions, learning environment, personal level, learning methods, collaborative learning, learning attitudes. The results show factors such as learning conditions, learning environment, time for leaning, qualifications, teaching methods, learning methods, cooperation in learning, attitude in learning are factors that significantly affect the learning of master students in Mathematics education. Therefore, universities with high-level training programs should have adequate facilities for students' learning; lecturers know how to use teaching methods to promote self-study and self-study for students, improve their ability to work independently, the ability to cooperate in the learning and research process of students. In oth...
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Teaching with analogies is an effective teaching strategy. Therefore, teachers from different countries have been studied and applied this strategy to teaching specific subjects in secondary schools. The study analyzed 20 lessons in the... more
Teaching with analogies is an effective teaching strategy. Therefore, teachers from different countries have been studied and applied this strategy to teaching specific subjects in secondary schools. The study analyzed 20 lessons in the chapter “Coordinate Method in space” (Geometry 12) which were given by 18 mathematics teachers at the secondary schools in Mekong Delta region (Vietnam), and the results showed that only 5 lessons in which teachers used analogical reasoning to help students construct new knowledge.
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Research Interests:
Nguyen Thi Loc1,4, Porntip Tinjuangjun3, Angharad MR Gatehouse2,*, Paul Christou3 and John A. Gatehouse1 1Crop Protection Group, Department of Biological Sciences, University of Durham, Durham, DH1 3LE, United Kingdom; 2Crop Protection... more
Nguyen Thi Loc1,4, Porntip Tinjuangjun3, Angharad MR Gatehouse2,*, Paul Christou3 and John A. Gatehouse1 1Crop Protection Group, Department of Biological Sciences, University of Durham, Durham, DH1 3LE, United Kingdom; 2Crop Protection Group, Department of ...