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Name of Course/class: 10th Grade Biology Unit Title: Introduction to Genetics Lesson Title: Cell Cycle and Mitosis (Lesson 1 of 5) Anticipated instructional time: 50 Minute class period Enduring Understanding: It is important for everyone to learn about the cells in organisms. It is important to understand cell division, also called cell reproduction. Once students understand cell division they will be able to discuss when it occurs and what controls it. Rationale: Learning about the cell cycle and mitosis is extremely important for every student to know so that they can understand how their bodies and all other organism’s bodies function. It is important to for them to know the steps of division and what occurs in those steps. Finally, students need to know what can happen when control of the cell is lost. Once this is understood, further genetic information can be understood. Goals of the lesson: G.1.1 To assemble the steps of the cell cycle and mitosis G.1.2 To interpret how the cell cycle is controlled G.1.3 To practice safe laboratory techniques when conducting science labs G.1.4 To demonstrate proper use of a microscope Biology Objectives of the lesson: O.1.1 Students will describe all stages of the cell cycle including all phases of mitosis. O.1.2 Students will predict the outcome of the cell cycle and how it is controlled. O.1.3 Students will explain what can happen when the cell cycle doesn’t go through proper control mechanisms. Multiple Representational Tools: In this lesson a powerpoint presentation will be used during lecture. There will also be use of a chalk/dry-erase board for use in lecture. Throughout the lesson there will be drawings and models of the cell during its phases to help visual learning. Inquiry based teaching will be used during lecture to stimulate the students to think about what is going on in the reproduction changes. The students will have a project based learning assignment to construct a flipbook of the stages of mitosis. Research and Best Practices: Locke (2005) found that mitosis and meiosis are difficult for students to fully grasp, so they suggest using common “pool noodles” as teaching aids. They would be used to represent chromatids of the cells. I will use the same idea with socks filled with rice. Wilder (2004) uses what they call a 5E learning cycle to explain the cell cycle. The 5E cycle is: Engagement, exploration, Explanation, Extension, and Evaluation. The engagement phase is used to motivate students. The generated interest leads to the exploration stage of an experiment. The explanation stages uses the observations and data to give students a scientific explanation for their results. The elaboration stage gives the students additional problems. Finally, the evaluation stage is used to determine if students obtained a correct understanding of the concept. Duplichan (2001) has the students construct a flipbook of the steps of mitosis. This is a good way to get the students to draw the stages, and it also gives them a good visual to look at to show the changes in each stage. SD K-12 Content Standards: Life Science o 9-12.l.1.1. Students are able to relate cellular functions and processes to specialized structures within cells. National Content Standards: Life Science Standard: o 9-12 The Cell History and Nature of Science Standard o 9-12 Science as a Human Endeavor Session-Related Questions: 1. What cells go through these cycles? 2. If cells go through this cycle, why do cells die? 3. How do cells know when to reproduce? 4. How many cells are produced daily? Imbedded / Formative Assessment Opportunities: During the lesson, observation will be used to monitor progress of all students. I will observe the students while I lecture to see if they are paying attention, and taking good notes. I will also observe during the time that they will be working on the worksheet to see if they have questions, and understand the material. I will also observe the drawings of the cell cycle to see if they understand each part of the cell cycle that they need to know. Some of these observations will be made from the front of the classroom and other times I will be walking around the classroom and offer personal attention to those who need it. Instructor Materials: Computer Projector Powerpoint of lesson Chalk / Dry-erase board Chalk or Dry-erase markers Slides of mitosis Rice socks for demonstration Microscopes Participant Materials: Biology textbook Notes Pen / Pencil Teaching Notes / Lesson Script / Procedures: I will quickly review a few key ideas that student should remember from the lesson over chromosomes. I will then start lecturing using a power point presentation about cell reproduction. Using both a power point presentation and a dry-erase board I will inform students of mitosis. I will start with chromatid separation and then move into the four stages of mitosis (prophase, metaphase, anaphase, and telophase). To represent the separation of the chromatids and the replication of it I will have a demonstration using rice socks representing the chromatids. Each of the phases will be drawn on the board to show what each stage looks like. The students will learn what cytokinesis is. The students will look at slides of cells going through mitosis. To end class the students will have to draw each of the stages of mitosis on paper and turn it in. Assessment Type Goal/Objective (D,F,S) Mitosis Questions at end F of class. G.1.1, G1.2, O.1.1, O.1.2, O.1.3 Worksheet drawings of F mitosis under a microscope Observations of Students F During Class G.1.1, G.1.5, O.1.1 Flipbook assignment G.1.1, G1.2, G.1.3 O.1.1, O.1.2, O.1.3 S G.1.1, G1.2, G.1.3 O.1.1, O.1.2, O.1.3 Lesson End of lesson 1 lecturing End of Lesson 1 During Lesson 1 End of Lesson 1 Accommodations: The review questions that I will ask in the beginning of the lesson will help students remember prior knowledge about cells. It will also work as a warm-up for the students to get into a learning mindset. The inquiry based questions that are asked to the students throughout the lesson will help ensure that the students are thinking critically about the lesson. The worksheet with the drawing exercise of the cell cycles will help them remember the stages of the cycle. Reflection / Revision: This section will be completed after the completion of the lesson. References: Duplichan, Staycle C. "Mitosis Flipbook." Science Teacher 68.6 (2001): 78. Academic Search Premier. EBSCO. Web. 23 Nov. 2009. Locke, John, Heather E. McDermid, and Patricia J. Pukkila "Using Pool Noodles to Teach Mitosis and Meiosis." Genetics 170.1 (2005): 5-6. Academic Search Premier. EBSCO. Web. 12 Oct. 2009. Wilder, Melinda, and Phyllis Shuttleworth "CELL INQUIRY: A 5E LEARNING CYCLE LESSON." Science Activities 41.1 (2004): 25-31. Academic Search Premier. EBSCO. Web. 12 Oct. 2009.