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1,010 Results Found

  • Article
  • Open Access
12 Citations
4,458 Views
15 Pages

27 December 2020

This study aimed to develop conceptual frameworks on how to teach STEM concepts in a Bahasa Indonesia subject as integrated learning. This study used a mixed-methods research design that consisted of a document analysis, a survey, and a systematic re...

(This article belongs to the Section Sustainable Education and Approaches)
  • Article
  • Open Access
2 Citations
4,452 Views
25 Pages

Gender gaps in spatial skills—a domain relevant to STEM jobs—have been hypothesized to contribute to women’s underrepresentation in STEM fields. To study emerging adults’ beliefs about skill sets and jobs, we asked college stu...

(This article belongs to the Special Issue Spatial Intelligence and Learning)
  • Article
  • Open Access
13 Citations
5,809 Views
10 Pages

Concept Raps versus Concept Maps: A Culturally Responsive Approach to STEM Vocabulary Development

  • Jamaal Young,
  • Jemimah Young,
  • Marti Cason,
  • Nickolaus Ortiz and ,
  • Marquita Foster and
  • Christina Hamilton
  • + 1 author+ 0 author

This article argues that the development of rap song lyrics or lyrical concept mapping can be a viable pedagogical alternative to the development of concept maps as a means to reinforce STEM vocabulary. Hip-hop pedagogy is a culturally responsive ped...

(This article belongs to the Special Issue Vocabulary Development)
  • Article
  • Open Access
11 Citations
6,432 Views
16 Pages

Increasing Self-Concept and Decreasing Gender Stereotypes in STEM through Professional Development for Early Childhood Educators

  • Sarah Feierabend,
  • Sabine Hasenhütl,
  • Manuela Paechter,
  • Silke Luttenberger and ,
  • Marina W. T. Eglmaier and
  • Lars Eichen
  • + 1 author+ 0 author

11 January 2024

Starting early in life, children, especially girls, experience obstacles when it comes to developing an interest in STEM. Although early childhood (EC) educators face an important task in promoting girls (and boys) in STEM, they often face challenges...

(This article belongs to the Special Issue Sticking with STEM: Who Comes, Who Stays, Who Goes, and Why?)
  • Article
  • Open Access
160 Citations
17,520 Views
22 Pages

16 November 2021

Understanding teachers’ conceptions surrounding integrated STEM education is vital to the successful implementation of integrated STEM curricula in K-12 classrooms. Of particular interest is understanding how teachers conceptualize the role of the ST...

(This article belongs to the Special Issue Integrated STEM and STEM Partnerships: Teaching and Learning)
  • Review
  • Open Access
26 Citations
5,472 Views
17 Pages

Colorectal Cancer Stem Cells: An Overview of Evolving Methods and Concepts

  • Maria Laura De Angelis,
  • Federica Francescangeli,
  • Ann Zeuner and
  • Marta Baiocchi

24 November 2021

Colorectal cancer (CRC) represents one of the most deadly cancers worldwide. Colorectal cancer stem cells (cCSCs) are the driving units of CRC initiation and development. After the concept of cCSC was first formulated in 2007, a huge bulk of research...

(This article belongs to the Special Issue In Vitro and In Vivo Models of Colorectal Cancer for Clinical Application)
  • Article
  • Open Access
2 Citations
624 Views
23 Pages

From Sustainability Concepts to STEM Projects: Conceptual Learning Following an Integrated STEM Intervention in Primary and Secondary Education

  • Guadalupe Martínez-Borreguero,
  • Jesús Maestre-Jiménez,
  • Milagros Mateos-Núñez and
  • Francisco Luis Naranjo-Correa

Integrating sustainability into science education remains a key challenge for the design of contextualised, socially relevant instruction. Within this framework, integrated STEM education offers a promising avenue for connecting scientific concepts w...

(This article belongs to the Section STEM Education)
  • Review
  • Open Access
81 Citations
12,840 Views
27 Pages

Aging and Mesenchymal Stem Cells: Basic Concepts, Challenges and Strategies

  • Maria Fraile,
  • Noemi Eiro,
  • Luis A. Costa,
  • Arancha Martín and
  • Francisco J. Vizoso

18 November 2022

Aging and frailty are complex processes implicating multifactorial mechanisms, such as replicative senescence, oxidative stress, mitochondrial dysfunction, or autophagy disorder. All of these mechanisms drive dramatic changes in the tissue environmen...

(This article belongs to the Special Issue Mesenchymal Stem Cells: What We Have Learned and How to Manage Them)
  • Article
  • Open Access
3 Citations
1,772 Views
20 Pages

1 October 2025

Proportional reasoning is a crosscutting concept identified as necessary for student success in upper-level mathematics as well as science, technology, and engineering. Research on middle-grade mathematics learning shows that students tend to develop...

(This article belongs to the Special Issue Advancing Science Learning through Design-Based Learning)
  • Article
  • Open Access
8 Citations
5,063 Views
18 Pages

Enhancing Students’ Interest in Physics Concepts with a Low-Cost STEM Tool Focused on Motivation in Rural Areas of Developing Countries

  • René Flores-Godínez,
  • Antonio Alarcón-Paredes,
  • Iris Paola Guzmán-Guzmán,
  • Yanik Ixchel Maldonado-Astudillo and
  • Gustavo Adolfo Alonso-Silverio

5 August 2025

Physics concepts are considered an essential component of STEM (science, technology, engineering, and mathematics) education and fundamental for economic and technological development in the world. However, there can be student academic underperforma...

(This article belongs to the Special Issue Interdisciplinary Approaches to STEM Education)
  • Article
  • Open Access
3 Citations
2,432 Views
25 Pages

Women’s representation in Science, Technology, Engineering and Mathematics (STEM) is a powerful resource to motivate girls to study STEM degrees and fulfill the growing demands for professionals in these fields. From their youth, positive attit...

(This article belongs to the Special Issue Gender and STEM Education)
  • Review
  • Open Access
26 Citations
6,402 Views
25 Pages

Modern Concepts in Regenerative Therapy for Ischemic Stroke: From Stem Cells for Promoting Angiogenesis to 3D-Bioprinted Scaffolds Customized via Carotid Shear Stress Analysis

  • Annabella Benedek,
  • Daniel Cernica,
  • Andras Mester,
  • Diana Opincariu and ,
  • Roxana Hodas,
  • Ioana Rodean,
  • Johanna Keri and
  • Theodora Benedek
  • + 3 authors+ 0 author

Ischemic stroke is associated with a tremendous economic and societal burden, and only a few therapies are currently available for the treatment of this devastating disease. The main therapeutic approaches used nowadays for the treatment of ischemic...

(This article belongs to the Special Issue Head Tissues Regeneration)
  • Article
  • Open Access
11 Citations
4,954 Views
20 Pages

Understanding the Conceptions of Engineering in Early Elementary Students

  • Sandra A. Lampley,
  • Sarah Roller Dyess,
  • Michael P. J. Benfield,
  • Andrew M. Davis and ,
  • Sampson E. Gholston,
  • Monica L. Dillihunt and
  • Matthew W. Turner
  • + 2 authors+ 0 author

13 January 2022

There is a demand for more STEM professionals. Early elementary students’ conceptions about engineering can influence whether or not they explore STEM career paths and ultimately select an engineering career. This study examined the conceptions...

(This article belongs to the Special Issue STEM in Early Childhood Education)
  • Article
  • Open Access
1 Citations
644 Views
12 Pages

Attending to Teacher Considerations in I-STEM Curriculum Supplementation: The Case of Chip Kids

  • Shalaunda M. Reeves,
  • Francheska D. Starks,
  • Missy D. Cosby,
  • Brittany Price and ,
  • Vanessa Mahoney and
  • Joanna Millunchick
  • + 1 author+ 0 author

23 July 2026

To address a projected workforce gap in microelectronics, numerous companies and universities are introducing programs that bring authentic, industry-focused practices into K-12 education. Integrated STEM has emerged as an innovative approach to addr...

(This article belongs to the Special Issue Interdisciplinary Learning and Teaching in STEM Education)
  • Article
  • Open Access
9 Citations
4,651 Views
18 Pages

10 January 2023

The gender gap in STEM areas is still a reality that constitutes a global concern. Many initiatives have sought to strengthen the scientific-technological aspirations of girls, among them extracurricular programs such as the one we present here. Its...

(This article belongs to the Section STEM Education)
  • Article
  • Open Access
3 Citations
1,034 Views
27 Pages

12 February 2026

Against the backdrop of the synergistic advancement of Industry 4.0 and the dual-carbon strategy, traditional university mathematics education struggles to meet the demands for cultivating engineering talents’ integrated competencies in mathema...

(This article belongs to the Collection Higher Education and Sustainable Development of Universities)
  • Review
  • Open Access
35 Citations
11,744 Views
18 Pages

Mesenchymal Stem Cells: Current Concepts in the Management of Inflammation in Osteoarthritis

  • Asma Abdullah Nurul,
  • Maryam Azlan,
  • Muhammad Rajaei Ahmad Mohd Zain,
  • Alphy Alphonsa Sebastian and ,
  • Ying Zhen Fan and
  • Mh Busra Fauzi
  • + 1 author+ 0 author

Osteoarthritis (OA) has traditionally been known as a “wear and tear” disease, which is mainly characterized by the degradation of articular cartilage and changes in the subchondral bone. Despite the fact that OA is often thought of as a degenerative...

(This article belongs to the Topic Knee Osteoarthritis—How Close are We to Disease Modifying Treatment?)
  • Review
  • Open Access
90 Citations
21,497 Views
26 Pages

Endometrial Stem Cell Markers: Current Concepts and Unresolved Questions

  • Nicola Tempest,
  • Alison Maclean and
  • Dharani K. Hapangama

19 October 2018

The human endometrium is a highly regenerative organ undergoing over 400 cycles of shedding and regeneration over a woman’s lifetime. Menstrual shedding and the subsequent repair of the functional layer of the endometrium is a process unique to...

(This article belongs to the Special Issue Molecular Research of Endometrial Pathophysiology)
  • Review
  • Open Access
29 Citations
8,109 Views
17 Pages

Chronic spinal cord injury (SCI) is a catastrophic condition associated with significant neurological deficit and social and financial burdens. It is currently being managed symptomatically with no real therapeutic strategies available. In recent yea...

(This article belongs to the Section Biochemistry)
  • Commentary
  • Open Access
14 Citations
3,314 Views
13 Pages

27 November 2021

In this Commentary, the operational definition of cancer stem cells or cancer initiating cells includes the ability of certain cells, found in a heterogeneous mixture of cells within a tumor, which are able to sustain growth of that tumor. However, t...

(This article belongs to the Special Issue Origins, Properties, and Therapeutic Perspectives of Cancer Stem Cells)
  • Article
  • Open Access
21 Citations
7,079 Views
24 Pages

Preservice Elementary Teachers Conceptions and Self-Efficacy for Integrated STEM

  • Deepika Menon,
  • Deef A. A. Shorman,
  • Derek Cox and
  • Amanda Thomas

Educational reform efforts have emphasized preparing highly competent and confident preservice teachers to deliver effective K-12 Science, Technology, Engineering, and Mathematics (STEM) instruction. Self-efficacy is a key variable that influences mo...

(This article belongs to the Special Issue Research and Innovation in STEM Education)
  • Review
  • Open Access
3 Citations
4,864 Views
32 Pages

Stem Cell Niche Concept: Search for Current Expert Consensus

  • Igor Khlusov,
  • Larisa Litvinova and
  • Anastasia Efimenko

29 August 2025

Postnatal stem cells are crucial for tissue homeostasis and repair and are regulated by specialized microenvironmental microterritories known as “stem cell niches”. Proposed by R. Schofield in 1978 for hematopoietic stem cells, niches mai...

(This article belongs to the Special Issue Fundamental and Practical Perspectives in Regenerative Medicine: Proceedings of the VI National Congress of Regenerative Medicine (2024))
  • Article
  • Open Access
3 Citations
2,173 Views
19 Pages

23 October 2024

Emerging evidence suggests that cancer stemness plays a crucial role in tumor progression, metastasis, and chemoresistance. Upon exposure to internal or external stress, ribosomes stand sentinel and facilitate diverse biological processes, including...

(This article belongs to the Special Issue Mycotoxins, Immunity, and Inflammation)
  • Review
  • Open Access
15 Citations
6,041 Views
24 Pages

The Concept of Cancer Stem Cells: Elaborating on ALDH1B1 as an Emerging Marker of Cancer Progression

  • Ilias Tsochantaridis,
  • Angelos Roupas,
  • Sofie Mohlin,
  • Aglaia Pappa and
  • Georgia-Persephoni Voulgaridou

9 January 2023

Cancer is a multifactorial, complex disease exhibiting extraordinary phenotypic plasticity and diversity. One of the greatest challenges in cancer treatment is intratumoral heterogeneity, which obstructs the efficient eradication of the tumor. Tumor...

(This article belongs to the Special Issue Origins, Properties, and Therapeutic Perspectives of Cancer Stem Cells)
  • Systematic Review
  • Open Access
14 Citations
14,480 Views
23 Pages

A Systematic Review of Mind Maps, STEM Education, Algorithmic and Procedural Learning

  • Chrysovalantis Kefalis,
  • Constantine Skordoulis and
  • Athanasios Drigas

This systematic review investigates the use of mind maps in STEM education, focusing on their application, effectiveness, and contextual factors. The main objectives were to examine whether mind maps are used as learning or assessment tools, the rese...

(This article belongs to the Special Issue Transformative Approaches in Education: Harnessing AI, Augmented Reality, and Virtual Reality for Innovative Teaching and Learning)
  • Article
  • Open Access
9 Citations
4,655 Views
19 Pages

The current state of research in computer science education outlines gender differences in motivation, interest, and elective subject decisions in favor of male students. This study takes an exploratory approach to examine the gender differences in t...

(This article belongs to the Special Issue Sticking with STEM: Who Comes, Who Stays, Who Goes, and Why?)
  • Article
  • Open Access
7 Citations
3,238 Views
15 Pages

Interactive simulations have been shown to enhance conceptual understanding through multiple dynamic representations and supporting the inquiry process by offering repeated trials with rapid feedback. However, incorporating simulation-based activitie...

(This article belongs to the Section STEM Education)
  • Article
  • Open Access
12 Citations
6,640 Views
18 Pages

Exploring Secondary Students’ Alternative Conceptions about Engineering Design Technology

  • Anila Asghar,
  • Ying-Syuan Huang,
  • Kenneth Elliott and
  • Yannick Skelling

24 February 2019

This paper presents the assessment items that were developed by science and technology teachers in Québec to explore their students’ alternative ideas about engineering design technology and technological systems. These assessment items...

(This article belongs to the Special Issue Computer Science and Engineering Education for Pre-collegiate Students and Teachers)
  • Article
  • Open Access
22 Citations
6,637 Views
23 Pages

STEAM education postulates integrated problem-solving-based learning of its disciplines. Although positive results are being reported, there are some difficulties with its implementation. The purpose of this research is to analyze the conceptions and...

(This article belongs to the Special Issue Research and Innovation in STEM Education)
  • Article
  • Open Access
21 Citations
5,102 Views
20 Pages

Organ-on-a-Chip: Ubi sumus? Fundamentals and Design Aspects

  • Ana Sofia Morais,
  • Maria Mendes,
  • Marta Agostinho Cordeiro,
  • João J. Sousa and ,
  • Alberto Canelas Pais,
  • Silvia M. Mihăilă and
  • Carla Vitorino
  • + 2 authors+ 0 author

This review outlines the evolutionary journey from traditional two-dimensional (2D) cell culture to the revolutionary field of organ-on-a-chip technology. Organ-on-a-chip technology integrates microfluidic systems to mimic the complex physiological e...

(This article belongs to the Section Pharmaceutical Technology, Manufacturing and Devices)
  • Systematic Review
  • Open Access
17 Citations
5,693 Views
18 Pages

Efficacy of Adipose-Derived Mesenchymal Stem Cells and Stromal Vascular Fraction Alone and Combined to Biomaterials in Tendinopathy or Tendon Injury: Systematic Review of Current Concepts

  • Letizia Senesi,
  • Francesco De Francesco,
  • Andrea Marchesini,
  • Pier Paolo Pangrazi and ,
  • Maddalena Bertolini,
  • Valentina Riccio and
  • Michele Riccio
  • + 2 authors+ 0 author

31 January 2023

Background and Objectives: Tendon injury and tendinopathy are among the most frequent musculoskeletal diseases and represent a challenging issue for surgeons as well as a great socio-economic global burden. Despite the current treatments available, e...

(This article belongs to the Special Issue Biomaterials for Reconstructive and Regenerative Medicine: From Research to Translational Applications)
  • Article
  • Open Access
15 Citations
6,949 Views
25 Pages

A GIS Software Module for Environmental Impact Assessment of the Open Pit Mining Projects for Small Mining Operators in Kazakhstan

  • Mikhail Zarubin,
  • Larissa Statsenko,
  • Pavel Spiridonov,
  • Venera Zarubina and ,
  • Noune Melkoumian and
  • Olga Salykova
  • + 1 author+ 0 author

21 June 2021

This research article presents a software module for the environmental impact assessment (EIA) of open pit mines. The EIA software module has been developed based on the comprehensive examination of both country-specific (namely, Kazakhstan) and curr...

(This article belongs to the Special Issue Rethinking Sustainable Construction: Renewing Old Perspectives and Emergent New Frames of Thinking)
  • Article
  • Open Access
9 Citations
4,470 Views
17 Pages

27 April 2023

It is often the case that the integration of archaeology and Indigenous knowledges with science, technology, engineering, and mathematics (STEM) concepts, practices, and processes is missing in school-based contexts, which limits learners’ pers...

(This article belongs to the Special Issue STEM Education: Current Trends, Perspectives, and Narratives)
  • Article
  • Open Access
4 Citations
3,355 Views
20 Pages

Measuring Implicit STEM and Math Attitudes in Adolescents Online with the Brief Implicit Association Test

  • Regina Reichardt,
  • Celina Rottmann,
  • Laura Russo,
  • Kathrin J. Emmerdinger and
  • Sigrun Schirner

6 September 2023

Despite societal efforts toward enhancing gender equality, females are still underrepresented in STEM (science, technology, engineering, mathematics). Prominent explanations draw on gender differences in attitudes about STEM (with females holding mor...

(This article belongs to the Special Issue Sticking with STEM: Who Comes, Who Stays, Who Goes, and Why?)
  • Article
  • Open Access
3 Citations
3,036 Views
14 Pages

This article examines the phenomenon whereby ‘professionalism’ is used as a concept in higher education (HE), specifically regarding HE’s relationships with professions in science, technology, engineering and mathematics (STEM). We...

  • Review
  • Open Access
28 Citations
11,718 Views
15 Pages

22 May 2020

The concepts of hematopoiesis and the generation of blood and immune cells from hematopoietic stem cells are some steady concepts in the field of hematology. However, the knowledge of hematopoietic cells arising from solid tumor cancer stem cells is...

(This article belongs to the Special Issue Plasticity in Cancer and in Microenvironmental Cells)
  • Editorial
  • Open Access
10 Citations
4,371 Views
3 Pages

This Special Issue of Education Sciences focuses on STEM in Early Childhood Education [...]

(This article belongs to the Special Issue STEM in Early Childhood Education)
  • Communication
  • Open Access
4 Citations
7,078 Views
9 Pages

Regenerative medicine and anti-tumoral therapy have been developed through understanding tissue stem cells and cancer stem cells (CSCs). The concept of tissue stem cells has been applied to the pituitary gland (PG). Recently, PG stem cells (PGSCs) we...

  • Article
  • Open Access
4 Citations
4,397 Views
26 Pages

24 March 2025

Science, technology, engineering, and mathematics (STEM) are crucial for economic development and play a significant role in achieving sustainable development goals. Despite this, there is a shortage of skilled STEM professionals and a declining inte...

  • Commentary
  • Open Access
17 Citations
5,257 Views
8 Pages

The Microenvironment in Gliomas: Phenotypic Expressions

  • Davide Schiffer,
  • Laura Annovazzi,
  • Marta Mazzucco and
  • Marta Mellai

3 December 2015

The microenvironment of malignant gliomas is described according to its definition in the literature. Beside tumor cells, a series of stromal cells (microglia/macrophages, pericytes, fibroblasts, endothelial cells, normal and reactive astrocytes) rep...

(This article belongs to the Special Issue Cancer Stem Cells and Tumor Microenvironment)
  • Review
  • Open Access
17 Citations
10,613 Views
16 Pages

Signaling Pathways in the Pathogenesis of Barrett’s Esophagus and Esophageal Adenocarcinoma

  • Ksenia Maslenkina,
  • Liudmila Mikhaleva,
  • Maxim Naumenko,
  • Rositsa Vandysheva and ,
  • Michail Gushchin,
  • Dmitri Atiakshin,
  • Igor Buchwalow and
  • Markus Tiemann
  • + 3 authors+ 0 author

Barrett’s esophagus (BE) is a premalignant lesion that can develop into esophageal adenocarcinoma (EAC). The development of Barrett’s esophagus is caused by biliary reflux, which causes extensive mutagenesis in the stem cells of the epith...

(This article belongs to the Special Issue Inflammatory Signaling Pathways Involved in Gastrointestinal Diseases)
  • Review
  • Open Access
96 Citations
14,962 Views
26 Pages

The Ever-Evolving Concept of the Cancer Stem Cell in Pancreatic Cancer

  • Sandra Valle,
  • Laura Martin-Hijano,
  • Sonia Alcalá,
  • Marta Alonso-Nocelo and
  • Bruno Sainz Jr.

26 January 2018

Pancreatic ductal adenocarcinoma (PDAC), the most common type of pancreatic cancer, is the 4th most frequent cause of cancer-related death worldwide, primarily due to the inherent chemoresistant nature and metastatic capacity of this tumor. The latte...

(This article belongs to the Special Issue Latest Development in Pancreatic Cancer)
  • Article
  • Open Access
1,098 Views
14 Pages

Previous research indicates that cognitive and affective-motivational factors, along with gender, influence students’ educational choices, especially regarding STEM tracks. However, few longitudinal studies have examined these factors during mi...

  • Article
  • Open Access
23 Citations
7,969 Views
13 Pages

This paper aims to elicit the different conceptions of Socioscientific Issues (SSI) in formal, non-tertiary STEM lessons. An examination of recent publications in the field of science education was conducted to elicit the most common conceptions of S...

(This article belongs to the Special Issue Integrated STEAM Education: A Global Perspective)
  • Article
  • Open Access
2 Citations
4,393 Views
24 Pages

25 January 2022

The “leaky pipeline” in STEM remains an open issue. The integration of multiple STEM subjects, especially technology, is a promising approach, and pre-collegiate STEM teachers are particularly underprepared in this content area. In this c...

(This article belongs to the Section Teacher Education)
  • Article
  • Open Access
34 Citations
7,543 Views
20 Pages

Scientific Performance and Mapping of the Term STEM in Education on the Web of Science

  • Francisco-Javier Hinojo-Lucena,
  • Pablo Dúo-Terrón,
  • Magdalena Ramos Navas-Parejo,
  • Carmen Rodríguez-Jiménez and
  • Antonio-José Moreno-Guerrero

14 March 2020

Technological progress is causing terms such as “STEM”, an acronym for Science, Technology, Engineering and Mathematics, to burst into the educational arena, marking a new era in the application of innovative and motivating teaching and l...

(This article belongs to the Section Sustainable Education and Approaches)
  • Article
  • Open Access
12 Citations
4,898 Views
24 Pages

9 October 2021

This explanatory case study aims to formulate a framework of spiritual influence on Science, Technology, Engineering, and Mathematics (STEM)-based research for sustainable development from the perspective of university scientists. This single-site ca...

(This article belongs to the Section Sustainable Education and Approaches)
  • Review
  • Open Access
41 Citations
11,224 Views
35 Pages

Hard Dental Tissues Regeneration—Approaches and Challenges

  • Mihaela Olaru,
  • Liliana Sachelarie and
  • Gabriela Calin

14 May 2021

With the development of the modern concept of tissue engineering approach and the discovery of the potential of stem cells in dentistry, the regeneration of hard dental tissues has become a reality and a priority of modern dentistry. The present revi...

(This article belongs to the Special Issue Tissue Regeneration in Dentistry: From Biomaterials to Stem Cell Therapy)
  • Article
  • Open Access
112 Citations
20,500 Views
16 Pages

26 October 2020

Young people are the future of society and agents for social change, and so it is crucial to provide education that not only equips them with knowledge and skills but also changes their attitudes and behavior towards sustainable development. This stu...

(This article belongs to the Collection Approaches and Methods of Science Teaching and Sustainable Development)
  • Article
  • Open Access
1 Citations
3,273 Views
24 Pages

29 March 2025

There has been an increasing number of calls to apply new technologies to learning contexts for STEM education. However, limited studies have explored the role of technology in bridging teachers and children to create STEM knowledge collaboratively....

(This article belongs to the Section Early Childhood Education)

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