Table 2 Burst keywords in STG master’s theses (2016–2022).

From: Pre-service geography teachers from normal universities in China: what do their master’s degree theses focus on and imply?

Keyword

Earliest year in

the dataset

Strength

Time of

significant change

Time of end

of change

2016–2022

Geography curriculum

2016

30.8

2016

2017

Flipped classroom

2016

9.87

2016

2018

Curriculum reform

2016

7.27

2016

2017

Teaching methods

2016

6.33

2016

2018

Ability development

2016

5.52

2016

2018

Teaching reform

2016

5.34

2016

2018

Quality of teaching

2016

4.26

2016

2018

Quality-oriented education

2016

3.99

2016

2017

Geography class

2016

3.83

2016

2017

Teaching effectiveness

2016

3.63

2016

2018

General secondary schools

2016

3.55

2016

2017

Evaluation system

2016

3.99

2019

2020

Study tours

2018

10.75

2020

2022

Curriculum design

2019

4.16

2020

2022

Sense of patriotism

2020

3.59

2020

2022