I am looking for 3D Printing lesson plans for my 4th graders. I want to go beyond just having them replicate the online models. I just received my 3D printer for the fall school year. I hope that you remember me. You always have fantastic workshops.  former workshop attendeeHappy new school year! The following is the lesson seed I created for this teacher. It is aligned with her district's requirements for the Minnesota standards. If you can use it with your newly acquired 3D printer, please feel free. If you would like to share with us, we can post so other teachers can use.
prosthetic foot, image by Pongratz Engineering 
Tangrams Lesson Seed
Activity Overview Have students play Tangrams
 Use CAD to model your own Tangram set
 Use 3D printer to create the Tangram pieces
Standard  Activity  Extension 
5.3 I can measure angles in geometric figures and in real world objects with a protractor 


(earlier standard: ability to measure with ruler) 


5.7 I can identify and apply translations (slides), reflections (flips), or rotations (turns) to figures 


By playing Tangrams, students will demonstrate
Standard  Activity  Extension 
5.4 I can compare angles according to size 


5.6 I can find the area of different geometric figures and realworld objects 


5.7 I can identify and apply translations (slides), reflections (flips) or rotations (turns) to figures 


Levels of Tangrams:
 Tangram Tales: 3 pieces
 Tangram Calendar or Tangoes Game: 7 pieces
Extension:
 See how you can make quadrilaterals from triangles
 5.5 I can find the area of common quadrilaterals (squares and rectangles)
 Make your own challenge cards
 5.6 I can find the areas of different geometric figures and realworld objects
 5.7 I can identify and apply translations (slides), reflections (flips), or rotations (turns) to figures
 Make your own solution video/instructions (to help others “get it”)
 5.7 I can identify and apply translations (slides), reflections (flips), or rotations (turns) to figures
 Make your own Tangram pieces and related challenge cards: can you use nonright triangles or nonsquare or rectangular pieces?
 5.1 I can identify and describe different types of triangles in various contexts
 5.2 I can draw and describe quadrilaterals in various contexts
 5.3 I can measure angles in geometric figures and in realworld objects with a protractor
 5.4 I can compare angles according to size
 Design a case for your pieces and challenge cards