Unit A Basic Principles Of Plant Science-Books Pdf

Unit A Basic Principles of Plant Science
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Ask the students in the class about the average life span of people Continue by asking. at what age most people have children Explain that when people have children they are. completing a life cycle Redirect the discussion to plants Ask them if plants have life. cycles Encourage the students to present examples of how long plants are expected to. live and reproduce, Use this activity to lead discussion over the definition of life cycle. Summary of Content and Teaching Strategies, Objective 1 Define plant life cycle. Based on the interest approach have the students come up with a definition of a. lifecycle Find out if they can name the three main life cycles before showing the. information for objective 1, PowerPoint Slides 3 and 4. I Plants can be grouped or classified on the basis of their life cycles. A A life cycle is defined as the length of time from when a seed germinates until. the resulting plant produces new viable seed The plants that surround us fall. into three main life cycles annual biennial and perennial. Objective 2 Discuss the annual life cycle, PowerPoint Slides 5 and 6. II Plants that complete their life cycle within one growing season are considered to be. A A typical annual plant might require about 120 days after seed germination to. produce seed The germination process takes roughly 5 days When the. seedlings emerge the plant enters a vegetative phase The vegetative phase. which involves leaf growth and food production through photosynthesis might. last 45 days The plant shifts to a stage in which flower bud development is. initiated Flower bud initiation lasts about 21 days Flowers develop and. emerge in about 14 days Pollination and fertilization take place over about 3. days In the final 30 day phase seeds and fruits mature PowerPoint Slide 7. illustrates the typical life cycle of an annual plant. PowerPoint Slide 8, B One type of annual plant is the summer annual Summer annuals such as.
maize cotton tomatoes and many other vegetable plants germinate in the. spring They mature produce seed and die during the summer Summer. annuals are usually sensitive to cold temperatures. C Another type of annual is known as the winter annual Winter annuals. germinate in the fall form a compact rosette of leaves sit dormant over the. winter and resume growth in the spring In the spring they flower and. produce seed Wheat and chickpeas are two common winter crops in. Afghanistan, Lead a lecture discussion on annual life cycles Call upon students to. participate in the discussion Use TM B2 1 Annual Life Cycle and TM B2 2. The Life Cycle of a Typical Annual to highlight stages of an annual plant life. cycle Power Point Slide 9 can also be used Relate the discussion to real life. scenarios and annual crops important to the agriculture industry in Afghanistan. and or the Helmand province Wheat would be a great example to use. Objective 3 Explain the biennial life cycle, PowerPoint Slides 10 and 11. III Biennial plants are plants that require two years to complete their life cycle. A Typically biennial plant seeds are sown in the spring In the first year the. plant grows leaves stems and roots vegetative structures then it enters a. period of dormancy over the colder months They overwinter and in the. second spring or summer the stem of the biennial plant elongates greatly. The plant then flowers producing fruits and seeds before it finally dies Two. examples of biennial plants are carrots and beets, Use TM B2 3 Biennial Life Cycle to illustrate the concepts presented. PowerPoint Slide 12 can be used as well Have students get into groups of five. and make a list of other plants in the area that are considered to be biennial. After five minutes of work have the groups share their list with the rest of the. Objective 4 Recognize the perennial life cycle, PowerPoint Slides 13 and 14. IV Perennial plants are a group of plants that have life cycles that go beyond 2 years. A Herbaceous perennials have shoots that die to the ground each fall The. root system survives the winter and provides energy for the growth of new. shoots in the spring, PowerPoint Slide 15, B Woody perennials have a top that persists through winter In the spring.
shoot growth resumes from latent or adventitious buds Trees and shrubs are. woody perennials Trees and shrubs that drop all of their leaves in the fall are. said to be deciduous Plants whose leaves persist throughout the year are. termed evergreen Evergreen plants shed some leaves every year A typical. evergreen leaf lasts 1 3 years before dropping, Use TM B2 4 Perennial Life Cycle PowerPoint Slide 16 will also work. Have students complete LS B2 1 Take a look at the Lab Sheet to know how. many plants you are going to need If you can t come up with real plant. specimens take pictures with a camera or use pictures from a book When the. students are finished completing their Lab Sheet discuss answers as a class. Review Summary Summarize the content of the lesson as part of the review. process Be sure the expected outcomes are based on the student learning objectives. Have students answer questions orally related to the content associated with each. objective Student responses can be used in determining which objectives require. greater review or whether further instruction is necessary A few questions from. PowerPoint Slide 17 can be used during the review, Another possible review activity can be done by using the vocabulary words You will. need to divide the students into groups of two Using the vocabulary words in this. lesson have the students help their partner learn the vocabulary words by giving them. the definition Then the other person will have to tell you what vocabulary word I m. talking about For example one person in the group will tell their partner Plants whose. leaves persist throughout the year are termed What am I The other person will try. to guess the word evergreen Students will go through all of the words and then switch. roles with their partner, Application Use LS B2 1 Plant Life Cycles to apply the concepts presented in. the lesson s learning objectives, Evaluation Focus the evaluation of student achievement on mastery of the. objectives stated in the lesson Measure the student s performance on classroom. participation laboratory assignments and written tests or quizzes. Answers to Sample Test, Part One Matching, 1 i 2 c 3 f 4 h 5 a 6 b 7 g 8 e 9 j 10 d.
Part Two Completion, 1 woody perennials, 2 carrots and beets. 4 Asparagus strawberries artichokes and onions, 5 1 3 years. 6 vegetative structures, 7 life cycles, 8 annual biennial and perennial. 9 wheat and chick peas, 10 cold temperatures, Part Three Short Answer. 1 A typical annual plant might require about 120 days after seed germination to. produce seed The germination process takes roughly 5 days When the. seedlings emerge the plant enters a vegetative phase The vegetative phase. which involves leaf growth and food production through photosynthesis might. last 45 days The plant shifts to a stage in which flower bud development is. initiated Flower bud initiation lasts about 21 days Flowers develop and emerge. in about 14 days Pollination and fertilization take place over about 3 days In the. final 30 day phase seeds and fruits mature, 2 Typically biennial plant seeds are sown in the spring During the first growing.
season they grow vegetative structures leaves stems and roots They. overwinter and in the second spring resume growth and produce flowers and. 3 Herbaceous perennials have shoots that die to the ground each fall The root. system survives the winter and provides energy for the growth of new shoots in. the spring Woody perennials have a top that persists through winter In the. spring shoot growth resumes from latent or adventitious buds. Sample Test Name, Unit B Lesson 2 Understanding Plant Life Cycles. Part One Matching, Instructions Match the term with the correct response Write the letter of the term by the. definition, a Annual f Life cycle, b Biennial g Perennial. c Deciduous h Summer annual, d Evergreen i Winter annual. e Herbaceous perennial j Woody perennial, 1 Seeds germinate in the fall form a compact rosette of leaves sit dormant.
over the winter and resume growth in the spring, 2 Trees and shrubs that drop all of their leaves in the fall. 3 The length of time from when a seed germinates until the resulting plant. produces new viable seed, 4 Seeds germinate in the spring mature produce seed and die during the. 5 Plants that complete their life cycle within one growing season. 6 Plants that require two years to complete their life cycle. 7 Plants that have life cycles that go beyond 2 years. 8 Perennials whose shoots die to the ground each fall. 9 Perennials that have a top that persists through winter. 10 Plants whose leaves persist throughout the year. Part Two Completion, Instructions Provide the word or words to complete the following statements. 1 Trees and shrubs are, 2 Some examples of biennial plants are and. 3 A typical annual plant might require about days after seed germination to. produce seed, 4 and are examples, of herbaceous plants.
5 A typical evergreen leaf lasts before dropping, 6 During the first growing season biennials grow. 7 Plants can be grouped or classified on the basis of their. 8 The plants that surround us fall into three main life cycles. 9 Examples of two winter annuals are and, 10 Summer annuals are usually sensitive to. Part Three Short Answer, Instructions Provide information to answer the following questions. 1 Describe the growth and development process of a typical annual. 2 Describe the growth and development process of a typical biennial. 3 Explain how herbaceous perennials and woody perennials differ. LS B2 1 Name, Plant Life Cycles, Students will classify plants based on their life cycles. Pencil or pen, Reference materials, List plants that are included in the life cycle groupings.
Summer annuals, Winter annuals, Herbaceous perennials. Define plant life cycle 2 Discuss the annual life cycle 3 Explain the biennial life cycle 4 Recognize the perennial life cycle If you can t come up with real plant specimens take pictures with a camera or use pictures from a book When the students are finished completing their Lab Sheet discuss answers as a class 4 Review Summary Summarize the content of the lesson as part of

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