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Fertilization Teacher Resources
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Students examine organisms that are composed of tissues, organs, and systems. They dissect a fetal pig and explore the assigned organs systems such as the skeletal, muscular, and circulatory organs. Students identify and explain their organ and its function to other their peers.
Nearly all students have seen pregnant women and may have questions about human development. Intended for secondary students with mild to moderate mental disabilities, this lesson defines the process of pregnancy in a developmentally appropriate way. They define the term pregnancy, sort a collection of images depicting pregnant and not pregnant women, brainstorm differences they see, then discuss fetal development. The Miracle of Life by NOVA is suggested viewing.
Students compare mitosis and meiosis with regard to chromosome number in parent cells versus daughter cells, types of cells produced, total number of cells produced, and the number of divisions. In groups, identify and differentiate the major characteristics of vertebrate development and explain the relationships among the number of eggs, methods of fertilization, and rates of embryonic development as related to species survival.
Students examine human health by identifying dangerous pesticides. In this agriculture lesson, students research the food production system in the United States and discuss dangers such as pesticides, chemicals and insecticides which poison our food and poison humans as well. Students create a list of healthy fruits and vegetables on a worksheet and discuss the benefits of eating organic food.
Open this lesson plan with a discussion on birth defects. Break the class into groups to visit a website and learn about what happens at each stage of human embryo and fetal development. Assign each group a particular birth defect to research and create a slide show to present to the rest of the class. Note that in Step three of the lesson plan, the PowerPoint that you are supposed to show is not included. There are, however, a student worksheet and group presentation grading rubric.
A health lesson presents all aspects of conception and pregnancy. Fourth through sixth-graders define terms associated with pregnancy, label a chart of a woman, and discuss how pregnancy occurs. Some excellent activities and a wonderful worksheet are included in this impressive plan. Answers for the worksheet are available as well.
Seventh graders take a survey to determine their attitudes toward sexuality. In groups, they identify female and male reproductive organs and develop a list of secondary sex traits during puberty. They also discuss the stages of the menstrual cycle and how the fetus develops. To end the lesson plan, they discuss how to prevent sexually transmitted diseases.
High schoolers investigate the interference of various drugs on an embryo through experimentation. This is an open-ended lab to allow students to see effects of various chemicals humans choose to put in their bodies and create questions they can test in future experiments.
Tenth graders work in teams to order events of DNA transcription and translation protein synthesis. In the second lesson, they put the steps of mitosis and meiosis in order using a concept map poster. They use modeling clay to create models of cells undergoing these changes. In the third lesson, 10th graders create Punnett squares, and participate in an interactive lecture on genes, alleles, traits and geno/pheno types.
Students comprehend that karyotyping is a process in which chromosomes are cut from an enlarged picture and arranged in decreasing order of size. The cells to be viewed are first chemically treated to increase the number of dividing white blood cells and then treated with colchicines to stop mitotic division during anaphase. Lastly, the cells are burst open, stained and fixed. The slide is examined for well spread chromosomes, photographed, and karyotyped.
Teenagers take on the human reproductive systems when viewing this presentation. Labeled diagrams of each are displayed, along with one of a fetus in utero. Presented in bullet-point fashion are facts about the formation of sperm and egg cells, secondary sex characteristics, and organ functions. Show this factual PowerPoint in a biology or health class when covering reproduction and fetal development.