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Interactive and Integrative Lesson PlanOssification and Osteoporosis

(Date)

I. Objectives

Cognitive : Describe the structure and function of the skeletal system.

State the other functions of the skeleton.

Infer that inactive bones will be deprived of calcium.

Describe the process of bone formation.

Psychomotor : Investigate the effect of removing calcium from bones.Affective : Practice desirable habits in avoiding osteoporosis.

Relate the structure of a bone to the character of an individual.

II. Integration

A. Value: Eercise: a desirable health habit.B. Makabayan: Physical education

III. ubject Matter

1. !nit : !uman Skeletal and "uscular System"opic : #ssification and osteoporosisub#topic : #ther functions of the skeletal system.$eference : i$etbook %& Science and !ealth % by 'essie (. )illegas& pages *+,**Materials : chicken bone& plastic cups& water& hydrochloric acid-vinegar

2. %oncepts&$elated Ideas

*. ones have other functions aside from giving the body shape& protection& strength and fleibility of movement/they also serve as the factory for red and yellow marrow.

0. "ost blood cells are made in the red marrow of certain bones.1. 2at is stored in the yellow marrow in the cavity of long bones.%. 3alcium and phosphorus are stored in the bone itself. 4hen these minerals are needed by the body& they are

released into the blood and delivered to all parts of the body.5. 3alcium is necessary for blood clotting& beating of the heart& contraction of muscles& proper functioning of the

nervous system& and for balancing the good and bad cholesterol.6. ( bone that is not active becomes soft and weak because the system assumes that there is no need for strong

bones& and therefore decreases the calcium in bones. $his condition is called osteoporosis& a form of calcium

cannibalism.7. ones usually develop from cartilage. 3artilage is a strong& fleible tissue that gives shape to some parts of the

body& such as the ears and tip of the nose.8. 3artilage also covers the ends of some bones to keep bones from grinding against each other.9. 3artilage makes up disks between vertebrae as shock absorbers.*+. 3artilage has a covering that contains bone,forming cells. efore birth& the skeleton is mostly cartilage. (fter

birth& the bone,forming cells absorb calcium from the blood and change it into calcium compounds that cannotdissolve in the blood. $hese compounds are deposited in the cartilage& causing it to harden and become bone.$his process of bone formation is called ossification.

3. Process kills

#bserving& inferring

IV. Procedure

A.Preparatory Activitiesreetings3hecking of attendance3hecking of assignments

1. $evie'

How are bones classified according to shape?

How are bones classified according to composition or how they are made up of?

What type of bones provides strength?

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*. %ne function of bones is to store fat and minerals &at is stored in the yellow marrow while the minerals are stored in thebone itself 'hen the minerals are needed by the body they are released into the blood and carried to the body parts 'hat

are the two minerals in the bone that give the bone its hardness and strength$

a; calcium and potassium c5 calcium and magnesiumb; calcium and irond5 calcium and phosphorus

After a bone was soaked in vinegar for several hours it became soft and spongy 'hat can you infer from this

observation$

a5 6inegar dissolved and removed the minerals from the bone leaving behind the protein.b5 6inegar entered the pores of the bone and loosened the materials that make up the bone.

c5 6inegar dissolved the fat in the hollow portion of the bone, thus making it light and soft.

d5 7ince vinegar is an acid, it reacted with the protein in the bone producing a soft and spongy substance.

* Aside from making the bone hard and strong how else is calcium used by the body$A Calcium is necessary for blood clotting and beating of the heart

+ ,t is needed for the contraction of muscles

C ,t ensures the proper functioning of the nervous system

D ,t balances the bodys good and bad cholesterol

a5 A and ) c5 &, ) and 2

b5 & and 2 d5 All of the above

. +esides bone the skeletal system has a strong flexible tissue called cartilage Cartilage gives shape to some parts of your

body such as your ears and the tip of your nose 'hat is the purpose of the cartilages in the vertebrae$a5 They serve as shock absorbers between the vertebrae.

b5 They are used as connective tissues for the vertebrae.

c5 They serve as connective tissues between the vertebrae and muscles.

d5 All of these.

/ +ones usually develop from cartilage +efore birth the skeleton is made mostly of cartilage After birth the bone-forming

cells of the cartilage absorb calcium from the blood and convert it into an insoluble calcium compound that is then

deposited in the cartilage causing it to harden and become bone !his process of bone-formation is called

a5 ossification. c5 osteoblast.b5 osteoporosis. d5 calcification.

Question and Answer Test.

". 8ame some desirable habits that young boys and girls should practice in order to prevent osteoporosis.

%. 9f your younger brother or sister does not like milk, what would you tell him or her?

9. Assign)ent

". :ake further research on osteoporosis.

%. How are bones connected to each other?

(. What are the different ;oints in the body?