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!
Baby talk at 3 years. By the time your baby is age 3, his or her vocabulary expands rapidly, and make-believe play spurs an understanding of symbolic and abstract language like now, feelings like sad, and spatial concepts like in.