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Life Science Kit Resources

Plant Growth and Development

Vancouver School District
Science and Technology for Children
STC Unit - Plant Growth and Development
Grade 3 - Life Science

In Plant Growth and Development, students have the opportunity to observe each stage in the life cycle of a simple plant. Working with Wisconsin Fast Plants & trade: (Brassica rapa), which germinate, mature, and go to seed within a 40-day period, students plant seeds and watch the seedlings emerge. Later, they thin and transplant seedlings. As they watch their plants grow, students learn that plants need nutrients from the soil, as well as water and light, to thrive. As the unit expands to focus on the interdependence of living things, students cross-pollinate the Flowers with dried honeybees. Finally, they harvest mature seeds and determine seed yields. These experiences deepen students' understanding of the characteristics of living organisms and their relationship with and dependence on their environment.

By observing various properties and characteristics of plant growth, you'll help students begin to understand the diversity of life and environment around them. With the activities in Plants, you'll encourage your students to observe and detail the

· Understand the life cycle of plants.
· Understand the environmental needs of plants.
· Individual differences within local plants.

This is a very exciting unit for young students because they have a chance to observe, touch, model, measure and see science in action as they

· Interpret observed results and to draw conclusions about planting and
caring for seeds.
· Construct data charts and graphs of investigative results.
· Compare observations of the plant in terms of unique properties, soil
nutrient contents, light needs, and pollination in plant growth.

Through their long-term observations, students will understand that certain soils (which was studied in the 2nd grade Soils kit) are better for certain plants. The connections should be referenced to their previous experiences. By closely examining the life cycle of plants locally, students see observable differences within the same neighborhood. Extensive use of Venn diagrams helps students organize their observations and draw conclusions about their plant lessons in general.

Essential Lessons: All LESSONS 2, 3, 4, 5, 6, 7, 10, 11, 12

In doing each of the essential lessons, all content and performance standards will be met for the Washington State EALR's and Benchmarks. The lessons can be done in clusters or combined grouping. To ease Kit usage the following lessons should be done in the above sequence. The instructional approach to enhance student inquiry and discovery is to combine the lessons in clusters (1, 2) , (4-7) , (8, 9) , 10, 11, 12, (13, 14), (15, 16) and then culminate the unit with final project assessment. The grayed lessons should be done if time is available. This will assure that you will be able to accommodate all EALR and WASL requirements. If time is not available the grayed lessons could be eliminated, but this means that you will need to assure that the remaining lessons are done in breadth and depth.


 

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