Is there anyone who can share the research instruments in the issues and problems in the implementation of spiral curriculum in teaching science?

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Omer Tontus

Following link is for the leading article for spiral curriculum in medical education

https://www.tandfonline.com/doi/abs/10.1080/01421599979752?journalCode=imte20

Please find "research into practice" paper

Also recommend this article by Kenneth Masters and Trevor GibbsArticle The Spiral Curriculum: Implications for online learning