[Retracted] Preservice Training Strategies and Guarantee Mechanisms for Primary and Secondary School Teachers in the Development of Smart Cities by the Internet of Things

<div>Understandings of different teachers about foreign teachers’ professional standards (a) Chinese teachers; (b) mathematics teachers; (c) English teachers; (d) music teachers; (e) art teachers.</div>

Security and Communication Networks

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Figure 11

Figure 11: [Retracted] Preservice Training Strategies and Guarantee Mechanisms for Primary and Secondary School Teachers in the Development of Smart Cities by the Internet of Things 

Figure 11 | [Retracted] Preservice Training Strategies and Guarantee Mechanisms for Primary and Secondary School Teachers in the Development of Smart Cities by the Internet of Things 