butterflies in the classroom - carolina biological
TRANSCRIPT
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Carolina Biological Supply Company
Butterflies in the Classroom
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• To study the painted lady butterfly life cycle
• To learn setup and caretechniques
• To explore caterpillar anatomy
• To learn interesting butterfly facts
Session Objectives
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• Easy to maintainin the classroom
NOTE: Carolina’s painted lady butterflies are laboratory reared. Natural populations are not depleted.
Materials
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• Complete metamorphosis: egg, larva, pupa, adult
• Approximately 4 weeks from eggs to adults
Eggs
Larva
Pupa
Adult
Let’s Look at the Life Cycle
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Observe life cycle:look at containers oneach table.
Examine live samples of 4 stages: egg, larva, pupa, adult
Observation Activity
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Classroom butterfly requirements:
• Temperature—72 to 78° F
• Humidity—high for adults (mist habitat)
• Food—artificial food for larvae provided inculture cup
NOTE: Do not place culture cup/larvae in direct sunlight.
Adults require artificial nectar or flowering plants and water for proper nutrition.
Group Interaction and Discussion
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• Raised on live plants or artificial diet
• Culture cups sustaincaterpillars through pupa stage
• Move pupae to cage before adult stage emerges
Adult paintedlady butterfly on mallowplant
Painted lady pupalstage
Supporting Information
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Let a Simple Learning Cycle Shape the Inquiry
• ENGAGE
• EXPLORE
• EXPLAIN
• EXTEND
• EVALUATE
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A Closer Look
Engage
• How many legs do insects have?
• How many legs do caterpillars have?
• Are they all real legs?
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A Closer Look
Explore
• Use a soft brush to transfer a caterpillar from a culture cup into a Living Wonders™ View Chamber.
• Observe the caterpillar. Invert the chamber to view the dorsal and ventral sides.
• Describe the structure of the legs.
• Observe the shape of the feet.
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Explain and Extend
• There are many misconceptions about caterpillars.
• Many children’s books portray an incorrect image of caterpillars.
• Discuss some of the basic morphology of a caterpillar and compare it to these images.
A Closer Look
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Butterfly Necklace
Materials:
• Cup with 1 oz of diet
• Lid with ribbon attached
• Small paintbrush
• Small butterfly larva
• Paper disk
You Wear It Well
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• Add food to 1-oz cup (may be prepared for you).
• Transfer larva to culture cup.
• Place 1 or 2 butterfly larvae in small vial.
• Add paper disk and snap lid in place.
Butterfly Necklace
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After chrysalis forms, open lid and move paper disk with attached chrysalis to inside of butterfly habitat.
Wear proudly
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Moving Pupae to Cage
• Remove lid from culture chamber.
• Remove tissue with attached pupae from lid.
• Attach tissue to inside side of cage (with tape or pin).
Note: Discard malformed pupae. If pupa detaches from tissue, tape back. Place tape across abdomen.
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• Symmetry: Bilateral vs radial
Example of bilateralsymmetry
Example of radialsymmetry
Butterflies as a Tool to Teach Various Topics
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• Human impact on nature:Peppered moth story
Butterflies as a Tool to Teach Various Topics
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• Plant light house/butterfly cage• Explanation of Wisconsin Fast Plants® life
cycle (host plant)• Tandem life cycle of cabbage white butterfly
Life cycle of Wisconsin Fast Plants® withcabbage whitebutterflies
Interdependence of Organisms
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Cabbage White Butterflies
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Cabbage White Caterpillars Feeding on Fast Plants® Leaf
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Devoured Plants
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Larva Food Choice: “A Salad Smorgasbord”
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One Hour Later
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Caterpillar Preparing to Pupate
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Cabbage White Chrysalids
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Butterflies on Film Can Feeder
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Ovipositing Cabbage White Butterfly
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Butterfly Oviposition Experiment
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• Butterfly wings are colored due to scales
Example of butterfly scales
Let’s Learn More
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• Harvester butterfly larvae are carnivorous and eat wooly aphids
• Fast? Clocked at 30 miles per hour
• Largest? Queen Victoria, 2–3 grams
Let’s Learn More
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• Smallest? Pygmy Blue, a few thousandths of a single gram
Example of Western Pygmy Blue Butterfly
. . . And a Little More
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• Some caterpillars are capable of eating poisonous plants. These poisons are deadly to other animals.
• Caterpillars that eat poisonous plants absorb and detoxify compounds. These then provide defense against predators.
And a Little More
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• Live butterfly necklace
• Living Wonders™ View Chamber
• Butterflies in the Classroom Instruction Manual
• Various other printed instructional materials
Take-Home Materials
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Resources from Carolina
Kits discussed in workshop session:
• Butterflies in the Classroom Kits(catalog no. 144012 and 144014)
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Resources from Carolina
Kits discussed in workshop session:
• Life in Balance: Plants and Butterfly Kit(catalog no. 158986)
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Need more butterfly kits and related products? See page 21 of the Butterflies in the Classroom manual.
Resources from Carolina
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Carolina Free Resources
Carolina offers many free resources to help support teachers.
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Evaluations: Share Your Thoughts!
Scale = 1 to 10
10 = Outstanding
9 = Above Average
8, 7 = Average
6, 5, 4 = Below Average
3, 2, 1 = Well Below Average
Please provide comments!
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Carolina Biological Supply Company
Thank you for investing your time in our training program.
For all of your classroom needs, check out our Web site,
www.carolina.com.
Enjoy the rest of the conference!