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Description of Unit

For this project, third-grade students will design a garden space composed of rectangles. Each student can choose from a variety of garden types (e.g., vegetable, Texas wild flower, butterfly, succulent, herb, flower) or develop one of their own. Students will learn about plants and their life cycles. The students will research types of plants to include in their garden and investigate specific planting and growing requirements.

Students will create a life-size diagram of their garden design and trading cards for the plants represented. Students will present their diagrams and provide information about the type of garden. They will also present their research on the plants and explain their interest in the careers of horticulture and botany.

This guide links the Design a Garden unit to the Texas Essential Knowledge and Skills (TEKS) for third graders. Design a Garden is a science and mathematics unit that allows students to explore and gain knowledge about planning a garden space. The unit also has interdisciplinary connections to mathematics by having students utilize their knowledge of area and perimeter of composite rectangles. Additionally, the Design a Garden unit connects to the horticulturist and botanist career fields. The following document includes the applicable TEKS and the details of the Design a Garden unit. The final section of this document presents the applicable Texas College and Career Readiness Standards adopted by the Texas Higher Education Coordinating Board (THECB) on January 24, 2008.

Phase I. Learning Experiences

  1. Introduce the project by reading one of the following books:
    • Miss Lady Bird’s Wildflowers by Kathi Appelt and Joy Fisher Hein. This book describes how Lady Bird was comforted by wildflowers after her mother died. It also discusses how Lady Bird worked to ensure that the beauty of wildflowers could be enjoyed by all children.
    • Blue Potatoes, Orange Tomatoes: How to Grow a Rainbow Garden by Rosalind Creasy. This book explains how to grow multiple, uniquely colored fruits and vegetables. It also describes guidelines for planning, planting, and caring for a rainbow garden.
  2. Begin a class discussion about the students’ garden experiences. Some possible questions to ask include the following:
    • Do you have a garden at home, or have you known anyone in your family who has ever had a garden?
    • Why would someone want to grow a garden (e.g., food, fun, beauty)?
    • What are some different types of gardens (e.g., flower, herb, vegetable)?
    • What is needed to create a garden space?
    • What do plants need to grow?
    • Do you think there are some plants that are not able to grow in our location? Why?
  3. Invite a guest speaker (e.g., horticulturist, master gardener, botanist) to your class to speak about gardening.
  4. Introduce the University of Illinois Extension website called “The Great Plant Escape” (https://extension.illinois.edu/gpe/case1/index.html). Students will learn about plant growth cycles, parts of plants, and what each part does by completing “The Great Plant Escape: In Search of Green Life” (Lesson Sheet 1).
  5. Provide the following links to students or complete the first two questions of the sheet as a whole group. Students will complete the “Vegetable Planting Guide” (Lesson Sheet 2) to learn about the different frost zones of the United States and determine which zone they live in. Allow students to complete the remainder of sheet as a whole group, in pairs, or individually. Students will need a regular or digital calendar to calculate the approximate transplant date of the designated plants.
  6. Review calculating perimeter and area of composite figures by having students complete “Composite Figures” (Activity Sheet 1). In addition, students will create composite figures with a specified area to practice one requirement of their garden design. Possible questions to ask after students complete Activity Sheet 1 include the following:
    • Is there another way to decompose (break apart) the composite shape into rectangles? How does this affect the area?
    • Why is it helpful to decompose (break apart) the shapes?

Phase II. Independent Research

A. Research process

  1. Selecting a topic. Students will determine a garden type or discuss a garden idea with the teacher. Through “Project Planning” (Project Sheet 1), students will determine the type of garden space they are interested in creating.
  2. Asking guiding questions. Students will ask guiding questions, possibly including the following:
    • What is the purpose of my garden?
    • What plants best fit my purpose?
    • What are some of the problems I may encounter with my garden? How might I plan for these problems?
    • What are some of the rules of gardening that I will need to follow?
    • How might my garden change over time? How should I plan for these changes?
    • What are some environmental concerns related to gardening?
  3. Designing the research proposal. Students will design two different layouts of their garden space using grid paper. They will calculate the following for each version:
    • The perimeter and area of the space (ensuring total area of 36 square units)
    • The number of each type of plant and approximate spacing between each plant. Students must be mindful that each square represents one foot and that there are twelve inches in each foot. This may be important when determining spacing requirements.

    Work with the students, if necessary, to create a good plan for the garden. How much room does each plant need to grow? How big will each plant get? Will any plants block the sunlight of other plants? (Hint: Research the plants and their size BEFORE plotting them.)
  4. Conducting the research. Students will choose one of the layouts to implement and research the plants they have selected.
  5. Drawing conclusions. Students will justify why the plants they have chosen, their design, and their gardening plan will be successful.

B. The product

Each student will create a life-size diagram of their garden using butcher paper. The diagram will illustrate the placement of each plant and the distance it is to be placed from other plants. Students will create a trading card that lists information for each plant in their garden using the template provided. Information for on each trading card includes the following:

  • Common name of the plant/vegetable/flower
  • Scientific name of the plant/vegetable/flower
  • Growth cycle of the plant/vegetable/flower (e.g., perennial, annual, biennial)
  • Height and spacing requirements of each plant/vegetable/flower
  • Two interesting facts about the plant/vegetable/flower

Students can use any printed or online resource to complete the information. All resources must be documented on the “Sources” sheet (Project Sheet 2).

Students will also create a narrative answering the following questions:

  • Why did you choose the garden type and/or the plants included in the garden?
  • What are some of the problems you may encounter with your garden? How might you plan for these problems?
  • What are some of the rules of gardening that you will need to follow?
  • How might your garden change over time? How should you plan for these changes?
  • What are some environmental concerns related to gardening?
  • What is your level of interest in the careers of horticulture and botany?

Students will create a rough draft and then revise and edit the draft to produce the final product.

C. Communication

Students will present their garden, including narrative, to the class.

D. A completed project consists of:

  1. The “Project Planning” document (Project Sheet 1) which includes two different models of the student’s proposed garden on grid paper
  2. A life-sized garden layout with correct spacing for each plant/vegetable/flower
  3. A trading card for each plant/vegetable/flower
  4. A two-paragraph narrative explaining the following:
    • The student’s thoughts behind his or her plant/vegetable/flower selection
    • The student’s opinion on whether a career in horticulture or botany would be appealing
  5. A “Sources” page
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