Possible Worlds digital games are designed to help improve student understanding of phenomena that are often the subject of scientific misconceptions. Developed by the Center for Children and Technology, the games are the centerpieces of modules that address four topics: photosynthesis, heredity, electricity, and heat transfer. Each module includes accompanying classroom activities that leverage students’ experiences within the games.

1. Photosynthesis: [The Ruby Realm](http://cct2.edc.org/rubyrealm/bin/RubyRealmFlash.html)
2. Heredity: [RoboRiot](http://cct2.edc.org/rubyrealm/roboriot2/bin/RoboRiot.html)
3. Electricity: [Monster Music](http://cct2.edc.org/rubyrealm/monstermusic2/bin/MonsterMusic.html)
4. Heat Transfer: [Galactic Gloop Zoo](http://cct2.edc.org/rubyrealm/module4/bin/Module4.html)

Each digital game has an accompanying classroom activity to develop Critical Thinking and science literary skills.

Our games are designed to:

• help students build novel conceptual models;
• complement teachers’ existing instructional practices;
• be familiar and fun to play.

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