Stages of Development

50 Lessons Over Easy

1

Marshmallow Pyramid

Materials:4 large bags of marshmallow & toothpicks

Direction:The students will divide into groups of four. Each group will be

given a bag of 40 marshmallows. They will have 3 minutes to build a pyramid. The pyramid must be standing.

2

How The Baby Develops Over 40 Weeks

3

Week 1• Ovarian & Endometrial

cycle occurs.

Week 5• A plate that will later

become the heart has developed.

• The central nervous system and muscle & bone formation have begun.

• The baby’s skeleton is starting to form.

4

Week 10

• Development of organ system and the body are well underway.

5

Babycenter.com Weeks 1-9

6

Week 15

• Baby may begin sucking it’s thumb.

7

Babycenter.com Weeks 10-14

8

Week 20• Skin begins growing into the

two layers.

Week 25• Although highly risky, some

babies can survive outside the womb at this time, but would spend several months in the hospital

9

Babycenter.com Weeks 15-27

10

Week 30

• The baby is not about 3lbs and 17 inches.

Week 35

• The baby is now about 5.5 lbs and 20.25 inches.

11

Babycenter.com Weeks 28-37

12

Week 40

• Baby is ready! Time for delivery!

13

http://www.babycenter.com/fetal-development-images-40-weeks

Stages of Development

• Complete the worksheet.• Due at the end of class.

14