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The Gemonstrator

This activity follows lessons learned in "The Gemonstrator"

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Activity Recommendations

Individual or small group supervised by an adult.

What You'll Need
  • Variety of things that look different on the outside than on the inside
  • Suggestions: kiwi, pineapple, pomegranate, dragon fruit, lychee nut or any other fruits the child has not tried before
  • Paper plates and a marker
  • Knife to cut fruit
What To Do
  1. Spread the items you’ve selected out on a table and place each one on a paper plate. Ask if the child can identify any of them. Introduce the fruit’s name and write it on the plate.
  2. Ask the child to predict what the inside of the fruit might look and taste like. Record the words the child uses.
  3. Cut each fruit open and ask your child to describe what he/she sees, then taste the fruit. Is it what was expected? Different? Encourage the use of descriptive words.
Discussion Questions
  • Discuss why Chelsea thinks the Gemonstrator is producing rocks. What does she learn?
  • Was Chelsea surprised to find gems inside the rocks?
  • Ask if you can always tell what is on the inside by looking at the outside of something?
  • Ask what your child learned about the way something appears on the outside and on the inside?
Follow-Up Activities

Discuss what kids think of when you mention pigs. Can they describe what these animals are like? Then read the book, Otis, by Janie Bynum. Is this pig what you expected? How is he different?


Otis, by Janie Bynum (HMH Books for Young Readers, 2000) 
Rainbow Fish by Marcus Pfister, (North-South Books, 1992)


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