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Questions with this tag relate to planning lessons for a specific purpose, such as teaching some coding paradigm or skill. Planning lessons in Computer Science depends on the context and level of the students. If it is a lesson which introduces a new topic, the tag [introductory-lesson] may also be appropriate.
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How to explain the concept of a variable to a 9-year old?
For a nine year old, you can say that a variable is a "change item", such as weather in the environment.
On the other hand, if it proves too challenging to explain it, you can kindly postpone this su …