Take apart a real flower to identify the petals and the pollen-bearing part, and explain the job each part does.
A flower is built with parts that each do a job. The petals are usually the brightest, most eye-catching part, and their job is to attract pollinators like bees and butterflies from far away. Deeper inside the flower is a part that makes pollen, the dusty powder pollinators carry between flowers.
Taking a flower apart, gently, lets you see these parts up close instead of just imagining them. A large, simple flower, like a lily, works well because its parts are big enough to see and touch easily.
Mastery looks like: They can identify at least two flower parts, such as petals and the pollen-bearing part, and state the job each one does.
Common stumbles: Mixing up which part attracts pollinators and which part carries pollen; handling the flower so roughly that the parts are hard to tell apart.