Provide a diagram of a flower and ask students to identify its basic parts -- the roots, stem, nectary, leaves, petals and seeds. Use only parts that are generic to all flowers. For bonus points, challenge students to draw on the diagram parts such as the stamen, ovary and ovule, which are inside the flower parts.
Assess students' basic knowledge of different kinds of flowers by providing color pictures or photographs of flowers and requiring that they identify the flower by kind. For instance, show photographs of the tulip, rose, sunflower, violet, daisy and other popular flowers. Alternatively, display real flowers at the front of the room.
Evaluate students' knowledge about the biological function of flowers by assigning them to write about the processes of flowers. For instance, challenge students to explain in writing how flowers produce seeds and help other plants to spread seeds. Challenge students to define and explain pollen. Prompt them to explain how flowers have the equivalent of male and female parts (the stamens and the pistil, respectively) and how these parts collaborate together to achieve fertilization.
Assess students' knowledge of a particular flower or topic by asking each student to research and present their findings to the class. Assign each student a different flower, such as the rose, sunflower, violet, or topic, such as cross-pollination, composites or gametes, and challenge them to research this flower or topic more fully than what was presented in class.