It began in the year of "Ancient Times"
Answer:
The abdominal muscles
Explanation: The abdominal muscles are located between the ribs and the pelvis on the front of the body. The abdominal muscles support the trunk, allow movement and hold organs in place by regulating internal abdominal pressure.
Answer:
Passing a difficult math test!
Explanation:
One should have the right tool in teaching.As one select a tool to know if it is formal or informal it will help someone to direct one's assessment toward children's interests. Hope this is the right answer and would be of help.