Some advantages of blended learning, particularly at a Kindergarten to grade 12 level of education, can be found under the general concept of educational technology. It is also one of the most effective ways for Personalized learning at scale.
The length of a human pregnancy can vary naturally by as much as five weeks. Credit: Â© Jessmine / Fotolia. The length of a human pregnancy can vary naturally by as much as five weeks, according to research published online August 7 in the journal Human Reproduction. Normally, women are given a date for the likely delivery of their baby that is calculated as 280 days after the onset of their last menstrual period.
The gestation of a human baby is considered to be 40 weeks. However, the average pregnancy lasts anywhere from 37 to 42 weeks. Yes, a normal pregnancy can last longer than nine months. This is often the first of many pregnancy surprises for first-time moms. Since only 5 percent of babies are born on their due date, according to the American Congress of Obstetricians and Gynecologists (ACOG), use this date as a general time line and not as something set in stone.