Theory of Knowledge
TOK Exhibition Examples
TOK Exhibition Object 1: The Periodic Table of Elements
Theme: Knowledge and Technology
Rationale: The development of the Periodic Table by Dmitri Mendeleev in the 19th century, and its subsequent evolution, exemplifies how current knowledge in chemistry is deeply rooted in its historical development. Mendeleev’s ability to predict the properties of then-undiscovered elements showcased the predictive power of scientific knowledge, with the table’s ongoing refinement reflecting the accumulation of empirical evidence and theoretical understanding. This object highlights how historical scientific breakthroughs continue to shape and inform the structure of current knowledge, guiding research, education, and application in chemistry.
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