LESSON PLAN DATE: 20/6/2019 TIME: 10:05 a.m. 11:20 a.m. FORM: 4th Form DURATION:160 minutes SUBJECT: CCSLC Integrated Science AGE RANGE: 13-15 years TOPIC: Photosynthesis Generalization: the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Concepts: light reaction, chloroplast, chlorophyll, starch and iodine solution. PRIOR KNOWLEDGE: Photosynthesis is third form. OBJECTIVES: Define photosynthesis State all the reactants ,conditions and products of the photosynthesis reaction. Work cooperatively to determine the rate of photosynthesis in the leaf samples given. TEACHING STRATEGIES/ METHODS Demonstration, and Lecture recitation , Educational game and Experimentation RESOURCES/ TECHNOLOGY: Iodine Beaker Alcohol A Leaf Multi media Hdmi cable Laptop SET INDUCTION: Students will be seated quickly and will be shown a slide show presentation depicting photosynthesis. Then the students will be asked what are we learning today. LEARNING ACTIVITIES/ EXPERIENCES: Instruct students to get into groups of four to complete the learning activities. Instruct the students to identify the item placed on their tables. The expected response is that it is a leaf. Ask the students to think about and then state in their respective groups what is the use of the leaf in terms of keeping the plant alive. The expected response is that the plant uses the leaf to make energy and food from the sun. Ask the students to create a definition for photosynthesis individually. The expected response is that photosynthesis in the process by which green plants make food using the sunlight. Show the students the chemical equation for photosynthesis. Focus on the reactants and the products. Ask the students to think individually about where the carbon dioxide and water comes from. The expected responses are that carbon dioxide from the air and the water came from the rain. Explain to the students that glucose is stored in the leaf in the form of starch for when ever the plant needs it. Inquire of the students that testing for the presence of starch is directly related to what ? The expected response is that it measures the rate of photosynthesis. Ask the students to sit quietly in their suits and watch the video on how to measure photosynthesis by testing for the presence of starch. Instruct the students to complete the lab in groups and record all the observations by following the instructions on the lab template. Ask the students to predict the pattern of starch distribution in the variegated leaf and the leaves of non green pigmentation. The expected responses are that starch would be located in the green portion of the leaf only in the variegated leaf and in the leaf of non green pigmentation the starch would be distributed equally within the leaf but there is a lower concentration of starch. Instruct students play a game of zonks in which questions are answered and students win points by answering it correctly. Instruct the students to complete the lab write up for homework to be graded. ASSESSMENT PROCEDURES: Zonk game used to orally assess the students. Lab write up to be graded. CLOSURE: Students will be questioned will by a teacher. Define photosynthesis State the reactants and products of photosynthesis Describe was process is used to test the rate of photosynthesis. Explain the results of starch test in variegated leaves and non green leaves. FOLLOW- UP ACTIVITIES: Ask the students to read the following passage from the text book. APPENDIX Slideshow to be shown to student at the set induction. Video showing the importance of washing your hands.