This activity gives students an opportunity to experience tactually and visually (for low vision students) the basic structure of a flower. I have chosen a large flower with clearly differentiated male a female parts for clarity.
I recommend covering plant reproduction in angiosperms including pollination and the formation of seeds on the day prior to this lab. Use the text and an appropriate model to introduce the students to the plant structures . Enasco.com has a nice flower model.
See review. http://www.perkinselearning.org/accessible-science/giant-dicot-flower-model. As this model is quite expensive (about $550), I have also reviewed a simpler student model made by the same company. It costs $225.
Caution: Find out about any allergies that students have prior to this activity.
- angiosperm - flowering plant
- pollination - the transfer of pollen from the male reproductive strutures to the female reproductive structures in plants
- pollen tube - a tubular structure that grows from a pollen grain, enters the embryo sac, and allows the male reproductive cells to move to the ovule
- pistil - the female reproductive part of a flower that products seeds and consists of an ovary, style and stigma
- ovary- in plants, the lower part of the pistil that produces eggs in ovules
- ovule - a structure in the ovary of seed plants that contains an embryo sac and that develops into a seed after fertilization
- stamen - the male reproductve structure of a flower that produces pollen and consists of an anther at the tip of a filament
- anther - in flowering plants, the tip of the stamen, which contains the pollen sacs where grains form
- filament- the long slender structure in a flowering plant which supports the anther- part of the stamen
- sepals - in a flower, one of the outermost rings of modified leaves that protect the flower bud
- petals - one of the ring or rings of the usually brightly colored, leaf-shaped parts of a flower utilized by the flower to attract pollinators