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Addresses AP® Biology Big Ideas 2, 3, and 4 and Essential Knowledge 2.C.3, 2.E.3, 3.E.1, and 3.E.3. Students determine the food preferences of Brassica butterfly larvae. Results are collected and quantified, and their significance is determined using chi-square analysis. Students then pose questions about other Brassica butterfly larvae behaviors and design an experiment to answer the questions. Materials for a class of 32 students working in groups of 4.

• Aligned with Big Ideas 2, 3, and 4 and Essential Knowledge 2.C.3, 2.E.3, 3.E.1, and 3.E.3
• Emphasizes Science Practices 2, 3, 4, 5, 6, and 7

Observe the foraging behavior of Brassica butterfly larvae.

• Observe animal behavior relating to food preference
• Use statistical analysis to determine significance of results
• Design and conduct animal behavior experiments

Students set up a choice experiment to determine the food preferences of Brassica butterfly larvae. Results are collected and quantified, and their significance is determined using chi-square analysis. Applying these techniques, students pose proximate and ultimate questions about other Brassica butterfly larvae behaviors and design an experiment to answer the questions. The 8-Station Kit includes enough materials for a class of 32 students working in groups of 4.

Note: Kit includes voucher to request perishable material later due to the need to grow the Brassica plant seeds included in kit for 5 days before receiving Brassica butterfly eggs.

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