This document outlines a lesson plan for teaching students about nutritional deficiency diseases. The lesson introduces key terms like nutrients, vitamins, and minerals. It discusses diseases caused by deficiencies like goiter from iodine deficiency, kwashiorkor from protein deficiency, marasmus from protein and energy deficiencies, and rickets from vitamin D deficiency. Students learn the symptoms of each disease and how to prevent them by consuming a nutritious diet.

1. NAME OF THE TEACHER : SHARI.K.S
NAME OF THE SCHOOL :
SUBJECT : BIOLOGY
UNIT : Chemical Changes in food
LESSON : Nutritional Deficiency Diseases.
CLASS : IX
DIVISION :
STRENGTH :
DURATION : 45 minutes
DATE :
CURRICULAR STATEMENT
Develops different dimensions of knowledge, attitude & skills on experiment to study the nutritional deficiency diseases through group discussion, demonstration, role play..etc
CONTENT ANALYSIS
TERMS
Nutrition, Nutritional deficiency diseases, goiter, kwashiorkor, marasmus, rickets

2. FACTS
1. Deficiency of any of the essential nutrients in our diet is called nutritional deficiency.
2. Deficiency of Iodine causes goiter.
3. Kwashiorkor is a protein deficiency disease in children.
4. Deficiency of Vit D causes rickets in children.
MINOR CONCEPT
1. The lack of nutrients in the food causes nutritional deficiency diseases.
2. The important nutrients present in the food include proteins, fats, vitamins, carbohydrates & minerals.
3. Deficiency of protein in diet causes marasmus & kwashiorkor.
4. Deficiency of vitamin D causes rickets & iodine deficiency causes goiter.
MAJOR CONCEPT
The deficiency of nutrition in food affect the physical & mental health of human.
LEARNING OUTCOME
Enables pupil to develop
-factual knowledge on nutrition deficiency diseases through
i. Recalling new terms like nutrients, Vitamins, minerals, carbohydrates, fats, protein, marasmus, kwashiorkor, goiter, rickets..etc.
ii. Recognizing the presence of nutrients in various foods.
iii. Explaining the symptoms of nutritional deficiency

3. disease.
-conceptual knowledge about the nutritional deficiency disease through.
(i) Recalling the importance of nutrients.
(ii) Recognizing the absence of nutrients in junk food
(iii) Explaining the symptoms & causes of nutritional deficiency diseases.
-procedural knowledge on the nutritional deficiency diseases through
(i) Analyzing different types of nutritional deficiency diseases.
(ii) Observing the symptoms of nutritional deficiency diseases.
-Scientific attitude towards nutrient deficiency through
(i) Knowing more & more about the relevance of nutrients in healthy life.
(ii) Curious to know more about deficiency of nutrients & their after effects.
-Process skills like
(i) Observing the symptoms of nutritional deficiency

4. diseases.
(ii)Differentiating the different nutritional deficiency diseases in humans.
PRE REQUISITES
Diseases which are caused by the deficiency of nutrients are known as nutrition deficiency diseases.
TEACHING LEARNING RESOURCES
 Paper cutting of nutrition deficiency diseases.
 Instruction cards containing discussion points.
 Text book, Std IX SCERT
REFERENCES
SCERT TEXT BOOK FOR STANDARD IX
TEACHERS HANDBOOK
Classroom Interaction Procedure
Expected Pupil Activity
INTRODUCTION
A conversation between Appu & his grandmother who went to see the science exhibition is given below.

5. Grandma, look at this picture. These people have staring eyes, lean legs & protruding belly. What is it?
Appu
It is because they are malnourished & lack nutrients in diet.
Grandma

6. Did you notice the above conversation? What according to the grandmother is the reason for various diseases? So today we shall discuss about malnutrition, nutritional deficiencies & their symptoms etc.

9. Discussion points
1. What are the diseases caused by nutritional deficiencies?
2. Which disease is caused by the deficiency of iodine? What are its symptoms? How can we prevent it?
3. What is marasmus? What are its symptoms?
4. What is rickets?
5. What are its symptoms?
6. What are the remedial measures for ricket?
1. Goitre, kwashiorkor, marasmus, rickets.
2. Goitre, enlargement of thyroid gland. Use of iodized salt & leafy vegetables.
3. Protein deficiency disease. Lean body, projected ribs, sunken eyes, dry skin
4. Vit D deficiency disease.
5.Bent limbs, decayed teeth & joint pain.
6. Prevented by using vitamin D rich food, like carrot, leafy vegetables, fish.

10. CONSOLIDATION
1. Goitre, kwashiorkor, marasmus & rickets are the various nutritional deficiency diseases.
2. Goitre is caused by deficiency of iodine. Symptom is thyroid gland swelling. Consuming fish & iodized salt..etc can prevent it.
3. Protein deficiency causes kwashiorkor in children. Symptoms are protruding stomach, projected eyes, oedema on legs. It can be avoided by consuming protein rich food.
4. Lack of protein & energy in diet causes marasmus in adult. Symptoms are lean body, projected ribs, sunken eyes, dry skin.
ACTIVITY 2
Now you have understood about malnutrition & nutritional deficiency diseases. Lets have a role play
Goitre
I am goiter. I am born out of iodine deficiency in people. Identify me by the enlargement of thyroid gland. You can avoid me by consuming foods containing iodine, such as fish, leafy vegetables..etc

11. Kwashirokor
I am Kwashiorkor. I am found in children with protein deficiency such children develop stunted growth, mental retardation, protruding stomach, projected eyes & oedema on lungs. Eating protein rich food like milk, egg, meat, pulses etc can prevent me.
Marasmus
I am marasmus. I am found in adults with protein & energy deficiencies. People whom I am found will have lean body, projected ribs, sunken eyes, oily skin..etc. You can prevent me by consuming protein rich diet.
Rickets
I am rickets. I am found in children too. I am borne out of Vit D deficiency. My symptoms are bent limbs, decayed teeth & joint pain. You can avoid by having carrot, leafy vegetables..etc
Students conduct role ply on nutritional deficiencies.
REVIEW
QUESTIONS
1. What are the nutritional deficiency diseases?
2. What are the different diseases caused by

12. nutrition deficiency?
3. What is goiter? What are the symptoms & prevention?
4. Name the disease caused by protein deficiency in adult?
5. What are the symptoms of marasmus?
6. What are rickets?
ACTIVITY
Make a chart showing nutritional deficiency diseases, their symptoms & preventive measures.
FOLLOW-UP-ACTIVITY
Collect more data on other nutrition deficiency diseases, their causes, symptoms & preventive measures.
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