GRADE: Sixth

CONTENT STANDARD: Life Science

CONTENT TOPIC: Growth and Development

CONCEPT: Traits are passed from parent to offspring.

CONTENT OBJECTIVE: 652H2.00 To understand sexual and asexual reproduction in plants and animals

INSTRUCTIONAL OBJECTIVES: The learner will:

2.01 define sexual and asexual reproduction.
2.02 give examples of sexual and asexual reproduction.

OUTLINE:

I. Asexual reproduction
II. Sexual reproduction

TN COMPONENT OF SCIENCE: Process Of Science

TN GOAL:

To enable students to demonstrate the processes of science by posing questions and investigating phenomena through language, methods and instruments of science.

1.5 EXPLAINING - Phenomena and related information are made understandable through discussion that culminates in a higher level of learning.

1.5c - Information should be related to prior knowledge.

BENCHMARKS: Prior knowledge provides a foundation for new learning experiences.

TIME REQUIRED: 30 - 30 minutes

MATERIALS: Reference material for research, pencil, paper

SET:

Raise your hand if you have a baby brother or sister. Who cares for the baby? (response) Today we will learn about reproduction and how it is important to the survival of the species.

Reproduction enables the species to continue. There are two types of reproduction, sexual and asexual. ASEXUAL reproduction requires only one parent or cell. SEXUAL reproduction requires two parents or cells. There are many forms of asexual and sexual reproduction.

Fission is the simplest form of asexual reproduction. The word fission means splitting in half.

Monitor: What are two kinds of reproduction? (Sexual, asexual)

Sexual reproduction requires mating. During mating, sex cells from a male and female join together. Sex cells in the male are called sperm. Sex cells in the female are alled eggs. Fertilization is the joining of an egg and a sperm. From this fertilization, a ew cell is formed called a zygote. If conditions are good, this zygote will grow into a new organism.

Monitor: How is a zygote formed? (Sperm and egg join together)

Today we have learned about two types of reproduction, sexual and asexual. Define each type. (response)

1. Why is reproduction important? (It enables a species to survive.)

2. What are the two types of reproduction? (Sexual and asexual)

3. How is a zygote formed? (The male cell and female cell join together.)

4. Compare the two types of reproduction. How are the processes alike?

5. Contrast asexual and sexual reproduction. How are they different?

1. Research a species that reproduces asexually.

2. Research a species that reproduces sexually.

3. Start a cutting from a house plant and watch for budding, a type of asexual reproduction.)

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