Is there a turtle graphics Library of blocks?

Hi everyone:)

Is there a turtle graphics library of blocks?
Could someone point me out to its documentation

I am super new to MIT APP Inventor.
I am preparing a first programming course for 11-14 year old,
Centered around cool math drawings and procedural art.

I would also appreciate references to art projects on MIT APP if you know any
Teaching advice and teaching resources are super Welcome c:

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Try Canvas in Drawing and Animation

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