Trimester by Trimester Month by Month Development of

Trimester by Trimester Month by Month Development of Baby & Changes in the Mother

“TRIMESTER GRAPHIC ORGANIZER” � Use the organizer to complete notes

Baby • Mother Size of a pin head at two • Missed period weeks • Enlarged breasts Egg has attached itself to the • Frequent urination lining of the uterus. Called Zygote until it attaches to the lining of the uterus Then becomes an embryo The heart, which is no larger than a poppy seed, has begun beating.

Baby Zygote 1/4 inch long and has distinct, slightly webbed fingers. Face, eyes, ears, and limb develop. Bones begin to form 8 weeks, changes from embryo to a fetus Will remain fetus until birth Veins are clearly visible. The heart has divided into right and left chambers. • Mother • Swelling of breasts • Increased urination due to pressure on bladder • Nausea • “Morning sickness”

TWO MONTHS

Baby 1 in. long as mth. Begins Nostrils, mouth, lips, teeth buds, eyelids form Fingers and toes almost developed All organs present, although immature Begun swallowing and kicking • Mother • Breasts firmer/fuller, may ache • Nausea • Fatique • Frequent urination may continue • Abdomen slightly larger • Wt. gain may total 2 -4 lbs.

Baby 3 in long Weighs 1 oz. as mth. Begins Can suck thumb, swallow, hiccup, and move around Facial features become clearer Covered with a layer of thick, downy hair called lanugo. Heartbeat can be heard clearly This is when you may feel your baby's first kick. • Mother • Appetite increases • Most unpleasantness of early pregnancy, such as morning sickness, usually gone • Abdomen cont. to grow slowly

4 MONTHS

Baby 6 ½-7 inches long weighs almost 4 -5 oz. Hair, eyelashes, and eyebrows appear Teeth cont. to develop Organs are maturing Becomes more active Protective coating called vernix caseosa begins to form on baby's skin. ver·nix ca·se·o·sa • Mother • Enlarged abdomen becomes apparent • Slight fetal movements • increased size of abdominal area may begin to affect posture

Baby 8 -10 in. 8 -12 oz. Eyebrows and eyelids are visible. The baby's lungs are filled with amniotic fluid. If started breathing motions. the mother talks or sings, the baby can hear. • Mother • Fetal movements sensed as strong kicks, thumps, and bumps • Some may be visible • Wt. gain by the beginning of this mth. may total 1012 lbs.

6 MONTHS

Baby 14 -16 in. long 1 ½ pounds Periods of activity followed by periods of rest and quiet Body is well-formed Fingernails cover his fingertips • Mother • Increased size may affect posture

Baby • Mother 14 -16 in. long • Discomfort may result Weighs 2 1/2 and 3 pounds from increased size of Gaining about half a pound per abdominal area week • backache=fatique Layers of fat are piling on • Leg cramps=shortness Moves into head-down position in preparation for birth of breath May react to loud noises with • Fetal kicks may reflex jerking action disturb the mother’s rest • At beginning of mth. , wt. gain totals 18 -20 lbs

Baby 17 -18 in. long Wt. 5 -6 lbs Skin becomes smooth as fat deposits cont. Movements decrease as the fetus has less room to move around Acquires antibodies to fight disease from the mother’s blood Moves into pelvis, ready for birth • Mother • “Lightening” felt as the fetus drops into the pelvis and decreases pressure on mother’s organs; breathing becomes easier • Other discomforts may cont. • Total wt. gain 25 -35 lbs. is typical • False labor pains may be experienced

Third Trimester Video: 1: 54 Inside Pregnancy: Weeks 28 -37

VIDEO 3: 34

1. WHICH ILLUSTRATES THE DEVELOPMENT OF A FETUS DURING THE THIRD TRIMESTER? A. Arms and legs develop B. Fingers and toes begin to develop C. Lightening occurs D. Nostrils, mouth, and eyelids form Answer=C

2. A PREGNANT WOMAN IS VERY RESTLESS AND TIRED. SHE SUFFERS FROM BACKACHE, SHORTNESS OF BREATH, AND LEG CRAMPS. WHICH STAGE OF PREGNANCY IS THIS? A. Conception B. First trimester C. Second trimester D. Third trimester Answer=D

� You will be put into groups to complete the next assignments.

WHAT IS WRONG WITH ME? � Directions: �Work with a partner. �Read the scenario. �Each partner should have a paper labeled with the above heading, name, date, block �Work together to list the symptoms decide what is wrong with the person in the scenario. �Use may use The Developing Child textbook to back up your diagnosis.

�Hi, My name is Mary. When I got up this morning to go to work, I did not feel well. I had a mild ache in my lower abdomen and a very full feeling. I feel very tired and a little faint. I told my husband that I think my period is late. I hope I am not diabetic because I have to urinate frequently. I have noticed for the last few days that my breasts are swollen and tender and are causing me discomfort. I also have been feeling nauseous and I had to throw up right before I left for work. What could be wrong with me? I need your help to diagnose my problem.

“NAME THAT MONTH” � Directions: �Class will be arranged into nine groups. �Each group will receive one case study strip. �Each group will read the case study (table tent) together to decide which month of the pregnancy is described. �Be ready to share your response.

CASE STUDY #1 � The zygote is the size of a pin head. The egg is attached to the lining of the uterus. The zygote is attached to the lining of the uterus and becomes an embryo. The mother has missed her menstrual cycle, her breasts have enlarged, and she has to urinate frequently. � What month is this? � Month 1

CASE STUDY #2 � The fetus is 17 -18 inches long and weighs 5 -6 pounds. The fetus continues gaining weight until the week before birth. The skin becomes smooth as fat deposits continue to develop. Movement decreases as the fetus has less room to move around. The fetus acquires antibodies to fight disease from the mother’s blood and moves into the pelvis, ready for birth. The mother feels lightening as the fetus drops into the pelvis; breathing becomes easier. Other discomforts continue, and a total weight gain of 25 -35 pounds is typical. False labor pains called Braxton Hicks contractions may be experienced. � What month is this? � Month 9

CASE STUDY #3 � The embryo is ¼ inch long and has developed face, eyes, ears, and limbs. The bones have begun to form. The embryo changes to a fetus and remains a fetus until birth. The mother has swelling of breasts and increased urination due to pressure on the bladder. She is not having nausea or morning sickness. � What month is this? � Month 2

CASE STUDY #4 � The fetus is 3 inches long and weighs one ounce. The fetus can suck its thumb, swallow, hiccup, and move around. The facial features become clearer. The mother’s abdomen continues to grow slowly. Most discomforts of early pregnancy, such as morning sickness, usually are gone. Appetite increases. � What month is it? � Month 4

CASE STUDY #5 � The fetus is about 8 -10 inches long and weighs about 8 -12 ounces. The mother senses fetal movement as strong kicks, thumps, and bumps---some may be visible. The mother gains as much as 10 -12 pounds during this month. � What month is it? � Month 6

CASE STUDY #6 � The fetus is about 14 -16 inches long, weighs about 2 ½-3 pounds as the month begins. The weight gain continues rapidly. The fetus may react to loud noises with a reflex jerking action. The fetus moves into a head-down position. The mother may show signs of discomfort from increased size. She might show signs of backache and fatigue along with leg cramps and shortness of breath. The fetal kicks may disturb the mother’s rest. At the beginning of the month, weight gain totals about 18 -20 pounds. � What month is this? � Month 8

CASE STUDY #7 � The fetus is about one inch long. Nostrils, mouth, lips, teeth buds and eyelids form. Fingers and toes also develop. All the organs are present, although they are immature. The mother’s breasts become firm and full, and they may ache. Nausea, fatigue and frequent urination are still present. The abdomen becomes slightly larger. The uterus is about the size of an orange. The mother has gained 2 -4 pounds. � What month is this? � Month 3

CASE STUDY #8 � The size of the fetus is 14 -16 inches long and weighs about 1½ -2 pounds as the month begins. The fetus experiences periods of rest and quiet. The mother’s increased size may affect her posture. � What month is this? � Month 7

CASE STUDY #9 � The fetus is about 6 ½-7 inches long and weighs about 4 -5 ounces. Hair, eyelashes, and eyebrows appear and teeth continue to develop. The organs are maturing and the fetus is becoming more active. The mother’s abdomen has become large enough to let others know she is pregnant. Slight fetal movements are felt. Increased size has begun to affect her posture. � What month is this? � Month 5

� Materials: �Construction paper �Ruler �Scale �Colored Pencils �Power. Point Notes � Directions: �Use materials to create a size chart of the growth of the fetus each month �You should chart it on paper, month by month and beside each month measure the size. Look for teachers example.

� Directions: �Use teacher’s example to create a fun way to remember the 9 months of pregnancy for Baby and Mother. � Materials: �Index cards �Colored pencils �Teachers Mnemonic I will post on document camera

BRAIN POP � Directions: � Look on the board for Brain Pop username and password. � Go to website www. brainpop. com � Login � Click: Health Genetics, Growth & Development Fetal Development � Complete the following in this order: 1. Watch video 2. Quiz 3. Activities 4. Q&A 5. FYI � You will need to turn in evidence of Brain Pop use. One paper group

3. 02 FETAL DEVELOPMENT TEST REVIEW �Directions: �Complete Mi. Ti. Re. La 3. 02 Learning Mode. �Record score after clicking daily progress. �Teacher will need to see and sign off on your Mi. Ti. Re. La paper.

� Directions: � Close eyes and put heads down on desks. � I will describe each month of pregnancy. � You will hold up the # of fingers corresponding to the month of pregnancy that is described. � Teacher will rotate around the room and touch student’s hand if incorrect. �If hand is touched you will know you need to try again! �If hand is not touched, leaved your fingers up until the next description is called out. � Test may consists of 9 -18 questions.