Context

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Learned in this study

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Things to explore

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Overview

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Vocabulary

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• 12 months 3+ words
• 20 months 20+ words
• 24 months 100+ words
• 30 months 300+ words From age 6 to 8, the average child in school is learning 6–7 words per day, and from age 8 to 12, approximately 12 words per day¹. An average 20-year-old knows 42,000 words coming from 11,100 word families; an average 60-year-old knows 48,200 lemmas coming from 13,400 word families.²

$y = 0.6831x^2 + 13.343x - 539.5$ $R^2 = 0.9998$

See also

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References

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• https://en.wikipedia.org/wiki/Cognitive_development
• https://en.wikipedia.org/wiki/Infant_cognitive_development
• http://www.children.gov.on.ca/htdocs/English/earlychildhood/speechlanguage/brochure_speech.aspx
• http://www.talkingkids.org/2011/07/how-many-words-should-my-child-be.html
• https://en.wikipedia.org/wiki/Model_of_hierarchical_complexity