Abstract
As a new form of teaching, blended teaching can integrate the advantages of classroom teaching and online teaching and improve the overall quality and effectiveness of English teaching under the premise of changing the orientation of teachers and students. The English blended teaching quality evaluation is a multiple attribute decision making (MADM) issue. Aczel-Alsina t-norm and t-conorm operations have the true advantage of changeability by adjusting a decision parameter. power averaging (PA) operator allowed decision attributes to strengthen each other through weight information during fusion, thereby eliminating the influence of subjective weights on the decision results. Motivate through classical Aczel-Alsina operators, PA operator and the single-valued neutrosophic sets (SVNSs), in this paper, the single-valued neutrosophic number Aczel-Alsina power averaging (SVNNAAPA) operator and the single-valued neutrosophic number Aczel-Alsina power weighted averaging (SVNNAAPWA) operator are constructed under SVNSs. The SVNNAAPWA operator is built for MADM. Eventually, an example about English blended teaching quality evaluation and some selected comparative decision analysis is used to depict the SVNNAAPWA method.
Keywords
Introduction
Blended teaching content is an important factor affecting the quality of English teaching and English teaching objectives [1, 2]. However, in the selection and choice of teaching contents, English teachers generally focus on the contents prescribed by textbooks, often presented to students in the form of courseware and syllabus, which leads to a high degree of abstraction and theoreticality in online teaching sessions, and there are many repetitive and homogeneous problems with classroom teaching sessions, which seriously affects the improvement of English teaching quality [3, 4, 5]. In the classroom teaching, English teachers gradually integrate the objectives of intercultural communication and curriculum thinking into the process of classroom teaching, but the lack of corresponding teaching contents makes it difficult to realize the English teaching objectives of universities effectively [6]. Through theoretical analysis and practical investigation, it can be seen that English teaching in China is still “misaligned” and “disconnected” from social reality, that is, English classroom teaching, online teaching and social development are not connected, and students have difficulty in mastering “As a result, students cannot apply English knowledge well to meet their basic needs in the process of social development and career development [6, 7, 8, 9]. With further deepening of China’s reform and opening up, the more and more exchanges between China and other countries in the world have become more frequent [10, 11]. In such a background, the demand for applied English professionals in China has been rising. As the main training ground for English majors, colleges and universities should actively adapt to the national development needs, rearrange the structure of English education, provide more opportunities for students to practice English language, and improve their English language application ability [10, 11, 12, 13, 14]. The blended teaching mode is a new teaching mode developed by information technology, which effectively integrates the traditional teaching mode with the online learning mode and applies it to the English teaching in colleges and universities, realizing the innovation of English teaching mode and improving the effectiveness of English teaching [15, 16, 17].
The Multicriteria Decision Analysis (MCDA) is an important research domain in modern management science [18, 19, 20, 21, 22]. In many realistic MCDA issues, due to the limitations of the decision maker’s ability to recognize the problem, it is often impossible to supply the accurate information and could only be portrayed through the uncertainty, which constitutes an uncertain MCDA issue [23, 24, 25, 26, 27, 28]. In order to portray uncertain information, Zadeh [29] constructed fuzzy sets (FSs). Atanassov [30] constructed the intuitionistic fuzzy sets (IFSs). To portray inconsistency information, Smarandache [31] constructed the neutrosophic sets (NSs). Then, the NSs has been widely extended and applications in different domains [32, 33, 34, 35, 36]. Pramanik [37] presented an overview of neutrosophic sets. Biswas, Pramanik and Giri [38] constructed entropy based grey relational analysis (GRA) method for MADM about SVNSs. Aczél and Alsina [39] constructed some new operations named as Aczel-Alsina t-norm and t-conorm operations, which have the true advantage of changeability by adjusting a decision parameter. Ashraf et al. [40] constructed the Aczel-Alsina operations to SVNNs and produced the Aczel-Alsina fused operators of SVNNs for MADM method which could reflect the decision flexibility during the practical MADM process. The PA operator [41] allowed decision attributes to strengthen each other through weight information during fusion, thereby eliminating the influence of subjective weights on the decision results. Motivate through classical Aczel-Alsina operators [39], PA operator [41] and the SVNSs, we combine SVNSs with Aczel-Alsina operators and PA operator and construct the SVNN Aczel-Alsina PA (SVNNAAPA) operator and the SVNN Aczel-Alsina power weighted averaging (SVNNAAPWA) operator. The main aim of this paper is propose some power average (PA) operators based on the Aczel-Alsina operations and classical PA operator [41] under SVNNs. Thus, the SVNN Aczel-Alsina PA (SVNNAAPA) operator and the SVNN Aczel-Alsina power weighted averaging (SVNNAAPWA) operator are produced based on the Aczel-Alsina operations and classical PA operator under SNNs. The SVNNAAPWA operator is built for MADM. Finally, an example about English blended teaching quality evaluation and some comparative analysis is constructed. In order to do so, the reminder of this paper proceeds. The SVNSs is reviewed in Section 2. The SVNNAAPA and SVNNAAPWA operators are built in Section 3. The MADM based on the SVNNAAPWA operator is built in in Section 4. An example application for English blended teaching quality evaluation is given in Section 5. The conclusion is listed in Section 6.
Preliminaries
Wang et al. [42] constructed the SVNSs.
with the truth-membership
The SVNN is constructed as
Peng et al. [43] constructed the order relation.
and
and let
Yong et al. [44] and Ashraf et al. [40] defined the SVNNAAWA operator.
The SVNNAAWA has three decision properties.
Then, the SVNN Aczel-Alsina power averaging (SVNNAAPA) operator is built on SVNNAAWA operator and PA operator [41].
where
The Theorem 2 is obtained.
where
(a) Let
(b) If Eq. (3) holds for
(c) Set
From the above (a), (b), and (c), it can be seen that Eq. (3) meets any given
The SVNNAAPA has three decision properties.
To pay attention to weights, the SVNN Aczel-Alsina power weight averaging (SVNNAAPWA) operator is built on the SVNNAAWA operator and PA operator [41].
where
The Theorem 2 is obtained.
where
The SNNAAPWA has the three decision properties.
Then, the MADM method is built based on the SVNNAAPWA operator under SVNSs. Let
Step 1. Structure SVNN matrix
Step 2. Normalize the
Step 3. According to
Step 4. Obtain the
Step 5. Rank the
Step 6. End.
An decision example
The problem and phenomenon of passive learning and ineffective teaching still exist in English teaching in China’s colleges and universities. Teachers are showing lectures, presenting arguments, teaching knowledge, giving examples and explaining texts, while students are “doing their own things in class”, which seriously affects the effectiveness and efficiency of English teaching in colleges and universities [45]. Although the traditional teaching mode in China can help students have a deep and comprehensive understanding of English grammar, vocabulary and sentence knowledge, the lagging teaching concept and teaching mode are not compatible with the information and modern teaching ecology in which students live, which weakens the subjectivity of students in English teaching and leads to the ineffectiveness of teachers’ teaching behaviors [46, 47]. However, with the support of blended teaching mode, teachers can make full use of modern information technology to innovate teaching forms, stimulate students’ interest, transform the traditional situation of theoretical indoctrination and full classroom duck-filling, and improve the quality of English teaching [48]. However, in order to better play the role and value of blended teaching in English education, we need to have a clear understanding of the definition, classification and practice model of blended teaching. Blended teaching mainly refers to the teaching mode of integrating classroom teaching and online learning, which can cover cognitivism, behaviorism, constructivism and other teaching theories, and apply computer network technology, audio and video recording, slide projection and other means to achieve the goals of streaming video learning, cooperative learning, self-paced learning and virtual classroom teaching [49, 50]. Blended learning was first proposed by foreign scholars and is a form of teaching that combines networked teaching and classroom teaching, which has a pivotal and important function and role in promoting the development of modern education networking and informatization [51]. According to theoretical research and practical analysis, we can find that there are three main types of hybrid teaching mode: network-assisted, hybrid and online, among which network-assisted mainly refers to the teaching form that seldom uses network and only uses network as an auxiliary classroom teaching activity. Hybrid teaching refers to the teaching mode in which network activities replace part of the classroom teaching activities [52, 53]. The online type refers to the teaching mode in which teaching activities are mainly carried out on the Internet. In terms of the degree of implementation, we can classify them into the following four types: (1) the category of using online resources as students’ self-learning grasp; (2) the category of linking classroom teaching with online resources; (3) the category of providing learning materials for students through online platforms; and (4) the category of complementing online learning with classroom teaching. And according to the degree of implementation of blended teaching models, we can also classify them into low intensity, medium intensity and high intensity blended implementation types. In terms of practice mode, blended teaching can incorporate modern advanced teaching mode and teaching methods to form a teaching pattern that adapts to the actual teaching in colleges and universities: (1) flipped classroom. Flipped classroom mainly refers to the process of flipping classroom teaching contents to the end of class and internalizing students’ knowledge, which can focus teachers’ teaching on the level of ability enhancement and knowledge internalization and help teachers better promote students’ overall development [54, 55]. Taking it as the main body of blended teaching can deepen the connotation of online teaching, transform the nature of classroom teaching, and make modern information technology a grip for students’ self-learning. (2) SPOC, short for Small Scale Online Course, can meet the needs of classroom teaching and help students make up for their own shortcomings and problems. And in the process of applying SPOC platform, teachers can provide rich and excellent online teaching resources for blended teaching and improve the efficiency of problem solving [56, 57]. The English blended teaching quality evaluation is a classical MADM issue. In this paper, an empirical application of English blended teaching quality evaluation is given through SNNAAPWA method. There are five English blended teaching colleges are evaluated their grain fermentation process quality. In order to assess five English blended teaching colleges fairly, the experts give the information with four defined attributes: ⟀ WZ1 is student feedback; ⟁ WZ2 is blended teaching costs; ⟂ WZ3 is blended teaching attitude; ⟃ WZ4 is invited peer expert recognition. Evidently, WZ2 is the cost, others are the benefit. Then, the SVNNAAPWA method is applied to MADM for English blended teaching quality evaluation with SVNNs. The SVNNAAPWA method involves the decision steps as below (
SVNN matrix
SVNN matrix
The NQ matrix
Step 1. Set up the SVNNmatrix
Step 2. Normalize
Step 3. Suppose that the attribute weights are given in Table 3.
The weight information
Step 4. Obtain the
The
Step 5. Obtain the
The
Step 6. From Table 5, the order is
To show the decision effects on the decision results through different decision parameters of SVNNAAPWA, the obtained results are produced in Tables 6 and 7.
Different parameters for SVNNAAPWA
Different parameters for SVNNAAPWA
Different order for SVNNAAPWA
It can be seen from the decision information in Tables 6 and 7 that when different parameter values are used, the priority of advantages and disadvantages is slightly different. During the MADM process, the choice of parameter values can be changed through the subjective attitude of decision-maker (DM). On the one hand, DMs can get different results through changing the parameter values; On the other hand, the selection of parameter values can also express the DM’s risk preference attitude, and determine which type of decision-maker is risky, conservative or neutral.
The SVNNAAPWA operator is compared with SVNN-COPRAS method [58] and SVNN-MARCOS method [59], SVNN-MULTIMOORA method [60] and SVNN-COPRAS method [61]. The results are recorded in Table 8.
Results for different methods
Results for different methods
In accordance with WS coefficients [62, 63], the WS coefficient between SVNN-COPRAS method [58] and SVNN-MARCOS method [59], SVNN-MULTIMOORA method [60], SVNN-COPRAS method [61] and the proposed SVNNAAPWA operator is 1.0000, 1.0000, 1.0000, 1.0000, respectively. At the same time, obtained from Table 8, it is obvious that the given optimal decision choice is WP2, while the worst decision choice is WP1. In other words, the ordering results of these five models are slightly different. Different models can effectively solve the MADM problem from different angles. The proposed SVNNAAPWA operator has the following advantages: (1) The built SNNAAPWA operator considers decision information with relationship between aggregate parameters; (2) The proposed SVNNAAPWA can effectively capture the intrinsic connection between attributes in MADM problems.
In the information age, teachers are no longer the only source of information for students, and the problems of the traditional lecture mode are becoming more and more obvious. Especially in the process of teaching English in colleges and universities, students’ personalized and diversified needs for English learning are becoming more and more obvious, and if traditional theoretical lectures or theoretical indoctrination are continued, students’ needs and goals will be affected. The English blended teaching quality evaluation is a classical MADM issues. In such paper, the Aczel-Alsina operations and PA operator is designed for MADM under SVNSs. The SVNNAAPWA operator is built and then the MADM methods are proposed based on the SVNNAAPWA operator. Finally, an example about English blended teaching quality evaluation and some selected comparative decision analysis is given to produce the SVNNAAPWA method. In the future works, the Aczel-Alsina operations shall be applied to other fuzzy and uncertain decision settings [64, 65, 66, 67, 68, 69, 70].
Footnotes
Acknowledgments
This work was supported by the Eleventh Batch of China Foreign Language Education Fund, National Research Centre for Foreign Language Education, Beijing Foreign Studies University (Project Title: Research on Blended College English Teaching in Private Universities Based on POA, Grant No. ZGWYJYJJ11A167).
