Introduction
Florida Standards: SC.4.N2.1- Explain that science focuses solely on the natural world.
SC.4.L16.1- Identify processes of sexual reproduction in flowering plants, including pollination, fertilization (seed production), seed dispersal, and germination.
Students should be able to:1. Identify the processes of sexual reproduction in flowering plants, including pollination, fertilization, seed dispersal, and germination.
2. State the functions of the parts of a flower.
3. Draw and label the male and female reproductive parts of a flower.
Teacher will ask students: 1. Why is the reproductive system important to all living things?
2. What is germination?
3. What is pollination and why must it occur?
Teacher will display a large white flower at the front of the classroom. Each student will be given some Cheetos to snack on (they are not allowed to lick or wipe their hands). When they are finished each student will wipe their fingers on the white flower. (Discussion will occur on how this is similar to pollination).
Task
Students will be given a real flower which has been dissected by the teacher. The students will work in groups of four. Students will be directed to draw and label the parts of the flowering plants, stating the function of each part.
Process
Students will work in their assigned groups. They will all help to gather general information about plant reproduction. The group will decide on one student to do the drawing, another student will label, one student will write the description of the functions, and the fourth student will gather all the information and present it in a power point. Students will use the following links to assist.
https://www.youtube.com/watch?v=yuMiXt2I_xI
https://www.youtube.com/watch?v=W9OiGA5_mVs
What are the reproductive parts of flowers called:- Carpel- female reproductive organs and Stamen- male reproductive organs.
Carpel, also called pistil- include ovaries where the eggs are produced, a style (the tube on top of the ovary) and a stigma (the part that receives pollen during fertilization).
-Plants with only female or male parts reproduce by pollinators that help carry the pollen to the female parts. Plants that have both parts are able to self- pollinate.
Evaluation
|
Evaluation |
4 |
3 |
2 |
1 |
|
Content |
The information is accurate in all areas |
Includes key information. Organization is good |
Includes some general information about the plant |
Very little content about the plant |
|
Teamwork |
Works cooperatively with peers |
Contributed some information to group |
Contributed at least 1 idea or activity within the group |
Made very little contribution to group |
|
Graphics |
Related to the topic and includes captions and heading. |
Drawing is clear and well represented |
Drawing is clear, but no headings |
Has drawing only |
|
Labeling |
All the parts of the flowers are labelled correctly. |
Uses key science vocabulary |
Some parts are labelled |
Very few parts are labelled |
|
Presentation |
The plan was well thought and presented in an organized and attractive way. |
Used a variety of text features in the presentation. |
Missing key information from presentation |
Presentation was not well organized and very little content/ explanation.7 |
Conclusion
Pollination occurs when male pollens are transferred to the female parts of the flower.
The seeds are formed when the ovary of the flower is fertilized.
The seeds are dispersed by wind, water or animals.
It is necessary to have water and an ideal temperature for seeds to germinate.
https://www.youtube.com/watch?v=SiFaN2xQg5g