Lesson Plan : Flowers have Sex

Teacher Name:
 Bea B-W
 Grade 9-10

 How Flowers Have Sex
 Reproductive anatomy of flowers, [and how Mendel mated flowers to produce the wrinkled, smooth, yellow and green peas. Thus, he discovered genetics.]
 Students will know that flowers have reproductive organs. They will identify the female and male pistils and stamens. They will know that flowers have ovaries with eggs that are fertilized by pollen. They will incidentally learn the variety of ways the pollen gets to the stigma.
 Students will complete Vocab sheet. Students will draw and label outline drawing of flower provided. Students will dissect lily type flower to locate ovary.
 Vocab sheets, flower diagram, coloring pencils. Lab: flowers, sharp blades, blank drawing paper. Textbook.
 QOD: Why is there a paintbrush in the textbook, p. 219, near Mendel's pea flower? Read caption for the figure to get a clue.
 Allow students to write the definitions on Vocab sheets. Present note-taking lecture with Powerpoint presentation illustrating the flower parts and their functions.
 Students then integrate their new knowledge by coloring and labeling the diagram provided.
 Advanced students are invited to explain how the pollen travels, how the flower avoids self-pollination, how different plants have sex different ways. They explain the basic anatomy to fellow students.
Checking For Understanding:
 The teacher walks the room, observing the labels and asking students what they are seeing. Students are asked about other flowers tehy have seen, and how those flowers might differ.
 Back to the Question of the Day, I ask why there's a paintbrush in the picture. Answer: because man pollinates flowers as he wishes, using a paintbrush to transfer the pollen. This is what Mendel did.

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