Math: Identify the shape of your finished cornbread. Can you cut it evenly in quarters? eighths? Re-write the recipe for a triple batch. How about 7 batches?
Science: How does corn grow? Research and draw the parts of a corn plant. Label the tassel, ear, stalk, and husk. How is corn used? Find 3 ways corn is used in consumer goods beyond "on the cob". Need a hint?
Language Arts: Write an ancient legend about corn. Find inspiration here.