Instruction:
Rotations
http://www.onlinemathlearning.com/cross-section-3d-shapes-hsg-gmd4.html
https://mathbitsnotebook.com/Geometry/3DShapes/3DRotations.html
https://www.khanacademy.org/math/geometry/hs-geo-solids/hs-geo-2d-vs-3d/v/rotating-2d-shapes-in-3d
https://www.geogebra.org/m/UMHXAvhb
https://learnzillion.com/lesson_plans/7269-predict-3d-results-of-rotating-simple-figures
Cross Sections
https://www.mathsisfun.com/geometry/cross-sections.html
Finding Volume
http://www.gradeway.com/lessons/math/findvolume3d.aspx
https://www.basic-mathematics.com/volume-formulas.html
https://www.thoughtco.com/surface-area-and-volume-2312247
Composite Figures:
Practice:
Cross Sections
https://www.ixl.com/math/geometry/cross-sections-of-three-dimensional-figures
https://www.khanacademy.org/math/geometry/hs-geo-solids/hs-geo-2d-vs-3d/e/slicing-3d-figures
Volume
Rotations
Composite Figures
https://www.sophia.org/concepts/volume-of-composite-figures--3
https://www.texasgateway.org/resource/determining-surface-area-and-volume-composite-figures