Lesson Plan in Science 7

LESSON PLAN IN SCIENCE 7 Sept. 5-6, 2016 I. OBJECTIVES 1. identify the parts of the compound microscope 2. Recognize the importance of the microscope in the study of biology 3. Handle and maintain the microscope properly II. SUBJECT MATTER Topic: The compound Microscope Materials: microscope, visual aid Reference: Grade 7 Science LM III. PROCEDURE a. Motivation Start the lesson proper with brief question and answer sort of discussion on the early beginnings and development of the microscope b. Activity Students will perform Activity c. Analysis 1. How many objectives does your microscope have? 2. How are the numbers related to the length of the objectives? 3. Which is the scanner? The low power objective (LPO)? The high power objective (HPO)? In what direction must the coarse adjustment knob be moved to raise the body tube? 5.What is the function of the mirror? And how do they differ? d. Abstraction - The microscope enables one to study objects too small to be seen and observed by the unaided eye. -compound microscope uses light and lenses to magnify objects/specimens. Total magnification of the microscope is computed by multiplying the magnifying power of the eyepiece by that of the objective. e. application Why microscope is an important tool in the study of biology? Explain.

IV. EVALUATION Multiple choice. Select the best answer. 1. Joan is using a compound microscope to examine a drop of pond water. Which objective will she use if she wants to see the greatest number of organisms in her sample? a. high power objective c. oil immersion objective b. scanner d. low power objective

2. A student is looking at a pollen under the microscope. If the eyepiece of the microscope he is using has the inscriptions 5x and 45x for the objective used, how many times is the pollen magnified? a. 9x c. 50x b. 40x d. 225x 3.A researcher wants to study the mitochondria of the liver cells of the mouse. The best microscope for him to use is the: a. scanning electron b. phase-contrast c. transmission electron microscope d. binocular compound microscope 4.If a microscope has an objective with an inscription of 100x or 97x, it is called the: a. oil immersion objective b. scanner c. high power objective d. low power objective V. ASSIGNMENT Assign students to look for pictures of the different kinds of microscopes from magazines, brochures or downloaded from the internet to be mounted on cartolina or illustration board. These can then be displayed on the walls or tables in the laboratory