Grade 8-Digestive Lesson Plan [PDF]

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To: Professor Dr. Ma Victoria



Presented by: Mary Kris Lesson Plan in Biology Grade 8 I.OBJECTIVES: The student will: 1. Identify the key components of the digestive system. 2. Describe the path of food as it passes through the body. 3. Explain the parts of the digestive system. II. SUBJECT MATTER: Topic: Digestive system Science concept: The job of the digestive system is to break down the food into smaller units called nutrients. References: Science for Daily Life Use pp. 30-31 Processes: Identifying, labeling, understanding and appreciating Materials: *Sample of food like cracker and banana * Illustration Value infusion: The importance of the digestive system in our body III. PROCEDURE: (4A’s Approach: Activity, Analysis, Abstraction, Application) A. Preliminary Reports 1. Opening Prayer 2. Checking of Homework B. a. Motivation 1. Give each of your student a piece of banana. 2. (Ask) have you ever wonder what happens to the food you eat? 3. (Ask) where do you think the food goes? b. Presentation 1. Show the illustration of the digestive system 2. Define what is digestive system and its job to our body. 3. Discuss the function of each part.



C. Lesson Proper A) ACTIVITY: Give each student a piece of a cracker and tell them to take a bite. Ask them not to chew or swallow the cracker, just hold it in their mouth. Ask the following question: 1. What happen to the cracker when it was in your mouth? 2. Why did it start to get softer? 3. What did you taste? 4. Let them discuss the process of digestion B) ANALYSIS: 1. Where does digestion start? 2. Where are the partially food enters? 3. What is the last process of digestion? C) ABSTRACTION (GENERALIZATION): Digestion- The breakdown by enzyme action of large insoluble food particle prior to absorption and assimilation.



PARTS OF DIGESTIVE SYSTEM 1.Mouth



2.Pharynx



3.Esophagus



4.Stomach



5.Liver



6.Pancreas



7.Gall bladder



8.Small Intestine



9. Large Intestine



10. Rectum



11.Anus



D) APPLICATION: LABEL THE PARTS OF THE DIGESTIVE SYSTEM Label each box with its appropriate description from the data provided on the right corner.



IV. EVALUATION: FILL IN THE BLANK THE RIGHT WORD IN THE BOX. WRITE YOUR ANSWER IN A 1 WHOLE SHEET OF PAPER. Digestion starts in the 1. _______. The food is change into soluble form. The 2. _____ softens the food. The partially digested 3. ______ enters the esophagus. It goes to the stomach. The food is further changed into liquid form in the 4. __________ so that the blood can carry it to the different parts of the body. Undigested parts of the food are push into the small intestine where they remain until the feces are expelled by a 5. ________.



Mouth



Large intestine



Food



Saliva



Bowel Movement



V. ASSIGNMENT: EXPLAIN YOUR ANSWER. WRITE IT IN YOUR NOTEBOOK 1. How can you keep your digestive system healthy?