How long it lasts: Early labor is unpredictable. For first-time moms, the average length of early labor is six to 12 hours. It's often much shorter for subsequent deliveries. What you can do: Until your contractions increase in frequency and intensity, it's up to you.
Ages & Stages - Toddlers. When children learn to walk, they are called toddlers. Usually this term is applied to one and two year old children. The toddler stage is very important in a child's life. It is the time between infancy and childhood when a child learns and grows in many ways. Everything that happens to the toddler is meaningful.
Key Concepts. 1  1. Infancy: Birth-18 Months Old. 2  2. Toddler / Early Childhood Years: 18 Months to 3 Years. 3  3. Preschooler: 3 to 5 Years. 4  4. School Age Child: 6 to 12 Years. 5  5. Adolescent: 12 to 18 Years. 6  6. Young adult: 18 to 35. 7  7. Middle-aged Adult: 35 to 55 or 65. 8  8. Late Adult: 55 or 65 to Death.