at how many months does a child hold head up 45 degrees
at how many months does a child bear weight on legs
at how many months does a child sit with minimal support
at how many months does a child sit without support
at how many months does a child stand alone
at how many months does a child walk alone
at how many months does a child walk up steps
at how many months does a child run
at how many months does a child grasp objects
at how many months does a child pass objects hand to hand
at how many months does a child pincer grasp
what is the rule of stacking cubes
at what month range does a child begin putting things in their mouth
at how many months does a child begin differentiating cries
at how many months does a child use vocal play such as gurgling, babbling
- including laughing and squealing
at how many months does a child use speech like babbling including the use of consonants and vowels including first words like “mama” and “doggie”
at how many years does a child use two word questions like “no doggie” or “where ball?”
at how many years does a child use two/three world utterances
at how many years does a child combine four or more words in sentence form
at how many years does a child use long and detailed sentences and adult like grammar
when does the “explosion in language” occur
at how many months does a child have a smiling social reflex
at how many months does a child respond to name
at how many months does a child follow simple commands like “stop”