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Development

Object Permanence in Infants: When and How It Develops

The companion piece to this article (Object Permanence: What It Is and Why It Matters) covers the practical day-to-day picture for parents — what the...

8 min read

Development

Object Permanence: What It Is and Why It Matters for Baby Development

A 4-month-old drops their rattle off the changing mat and looks up at you. They've done this thirty times today and you're losing your mind. You hand...

8 min read

Development

Child Development from 6 to 12 Months: What Is Considered Normal

The second six months of the first year are when babies become physical. They sit, they roll, they crawl in some idiosyncratic way of their own invent...

6 min read