Visualizing Cross-sections in Primitive 3D Shapes
Grades: 5, 6, 7, 8, 9, 10
Learning Target: Students will describe the two-dimensional figures that result from slicing three-dimensional figures.
- Demonstrate how to use the OpenSCAD code below to create cross-sections. Explain how to use the Customizer to adjust the rotation and translate variables.
- Provide students OpenSCAD code. Students may also illustrate on paper or with digital ink.
- Students will construct cross-sections and create pages in a shared PowerPoint presentation which contain snips of their visualizations.
SCAD Code for 3D Cross-sections
//Uncomment the primitive prisms below to see how cross-sections are affected. Adjust the variables below to rotate and translate the slices.
//Rotate with values up to 90 (degrees)
rotation = 0;
//Translate with values up to 20
cylinder(h=20, r=10, center=true);
//cylinder(h=15, r1=10, r2=0, center=true,$fn=100);
//sphere( r=10 ,$fn=100);
CCSS Math Practice
- I can make sense of problems and persevere in solving them.
- I can use appropriate tools strategically.
NGSS Crosscutting Concepts
- Structure and Function