Answer:
Subtract your heart's resting rate from your maximum rate. For example, if you are 40 years old, subtract that number from 220; your maximum rate is 180. Next, subtract your resting rate or 80 in this example. Your heart-rate reserve is 100 beats per minute.
Cognitive development in childhood.
Piaget's theory of development mostly concerns with cognitive develompent in children, either quantitative or qualitative. Under his theory, there are many different phenomena that we can test today and see on which stage of cognition a child is.
The Five Food groups:
Grains, breads, cereal
Lean meats, nuts, seeds, tofu, fish, eggs
Vegetables and beans/legumes
Fruits
Dairy (milk, cheese, yogurt)
