LOOPY Systems Thinking

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关于这个模拟实验

KiwiBee’s LOOPY classroom edition retains Nicky Case’s CC0 signal engine and adds balancing, reinforcing and grass/rabbit feedback experiments. Use a clear signal-injection button, observe the model levels, restart the experiment, or reveal the drawing tools to change a relationship. Prediction prompts help connect the visible feedback with a causal explanation. The signal animation and model levels are qualitative: they do not fit measured ecological data or forecast a real system.

学生可以探索什么

Press Play and send a signal into one of the sample nodes.
Change a positive connection to a negative connection and compare the feedback.
Sketch a simple ecosystem and explain which relationships your diagram leaves out.

学习目标

1Distinguish reinforcing and balancing feedback loops.
2Explain how a change can travel through connected parts of a system.

教师常问的问题

Who created this activity and what is its source license?

Nicky Case. Original source license: CC0-1.0. Source: https://github.com/ncase/loopy. KiwiBee improves the classroom controls and experiments, retaining source credits and licenses.

What does this model simplify?

LOOPY represents qualitative relationships and simplified signal flows. It is not a quantitative forecasting model.

How can I use the activity in class?

Use the activity controls inside the frame, or open fullscreen for a larger workspace. Ask students to predict a result, test it, and explain what changed. The embedded application starts in English; available upstream language controls are part of the original activity.

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继续探索

Explore an adult male reference body in 3D. Reveal 14 anatomical systems, search thousands of named structures, isolate organs, and pull 2,209 modeled pieces apart to see how the body is organized.

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Explore the head and neck in 3D: 643 source meshes across 14 layers, 47 facial and masticatory muscles, and 77 drawn nerves, vessels and glands the source scan omits. Open any tooth onto its own pulp canal, and follow the seven stages of tooth development.

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