Human Development Exam 2 - 3

• Height and weight: 2 1/2 inches and to 5-7 pounds per year
• Cartilage turns to bone at faster rate

• 11 hours per night
• Sleep walking and talking is common

• 3 years: enjoy simple movements (hopping, jumping and running back and forth)
• 4 years: more adventurous-start to come down stairs with one foot on each stair
• 5 years: even more adventurous and enjoy races

Careful planning is needed dto ensure a variety of appropriate activities that encourage gross motor development

• 3 years: Emerging in ability to handle things-may not be able to negotiate puzzle pieces
• 4-5 years: fine motor coordination improves and becomes more precise