Angles. An angle measures the amount of turn. Names of Angles As the Angle Increases, the Name Changes:
By the time your baby is 12 months old she will probably use the words mama and dada and know exactly what she's saying. However, she may also still babble short sentences that sound like she's fluent in a foreign language!
The building blocks of language: Babies can learn basic words by age six months due to their exposure to what their parents and siblings might talk about. It was thought that children of that age could understand elements of the sound of their own native language but not connect the sounds to meanings.