Lesson plan

Water-level task

The water-level task is an experiment in developmental and cognitive psychology developed by Jean Piaget and Bärbel Inhelder. The experiment attempts to assess the subject's spatial reasoning. The subject is shown an upright bottle or glass with a water level marked, then shown pictures of the container tilted at different angles without the level marked and asked to mark where the water level would be. Piaget and Inhelder developed the test as part of their work on child development. It was first described in their book The Child's Conception of Space, published in French in 1948, with an English translation appearing in 1956. They described a series of stages children pass through in their understanding, corresponding to different modes of performance on the water-level test, before mastering it around the age of nine. In 1964, Freda Rebelsky reported the surprising result that a significant number of her undergraduate and graduate students failed the task, and that the rate of failure was higher among female students. These results have since been replicated in a number of studies, and most subsequent interest in the water-level task has been concerned not with the study of child development but rather with accounting for the adults and adolescents that fail the test, and the apparent difference in success rates between the sexes.

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Article summary

The water-level task is an experiment in developmental and cognitive psychology developed by Jean Piaget and Bärbel Inhelder. The experiment attempts to assess the subject's spatial reasoning. The subject is shown an upright bottle or glass with a water level marked, then shown pictures of the container tilted at different angles without the level marked and asked to mark where the water level would be. Piaget and Inhelder developed the test as part of their work on child development. It was first described in their book The Child's Conception of Space, published in French in 1948, with an English translation appearing in 1956. They described a series of stages children pass through in their understanding, corresponding to different modes of performance on the water-level test, before mastering it around the age of nine. In 1964, Freda Rebelsky reported the surprising result that a significant number of her undergraduate and graduate students failed the task, and that the rate of failure was higher among female students. These results have since been replicated in a number of studies, and most subsequent interest in the water-level task has been concerned not with the study of child development but rather with accounting for the adults and adolescents that fail the test, and the apparent difference in success rates between the sexes.

Key claims

  1. publication date: 1948 — source: Wikipedia · confidence 0.95

Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. The record states that the publication date is "1948". What evidence would count against this claim?
  3. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  4. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

  1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1347123136

Key claims and bibliography are generated from the same tracked claims and sources as the article page.