Copy a Line Segment:
http://www.mathopenref.com/constcopysegment.html
https://www.youtube.com/watch?v=s282TNIHGCo
Bisect a Segment:
http://www.mathsisfun.com/geometry/construct-linebisect.html
https://www.youtube.com/watch?v=QAMOFWrKEUA
http://www.mathopenref.com/constbisectline.html
Bisect an Angle:
http://www.mathsisfun.com/geometry/construct-anglebisect.html
https://www.youtube.com/watch?v=nysMOfPsAfI
http://www.mathopenref.com/constbisectangle.html
Copy an Angle:
http://www.mathsisfun.com/geometry/construct-anglesame.html
http://www.mathopenref.com/constcopyangle.html
https://www.youtube.com/watch?v=gC7B_K59ypU
https://www.youtube.com/watch?v=SvRJ5qv4nz0
Construct a Perpendicular to a Line Through a Point:
http://www.mathsisfun.com/geometry/construct-perpnotline.html
http://www.mathopenref.com/constperpextpoint.html
https://www.youtube.com/watch?v=fXX0pAhUpKA
Construct a Parallel through a Point:
http://www.mathsisfun.com/geometry/construct-paranotline.html
http://www.mathopenref.com/constparallel.html
https://www.youtube.com/watch?v=uc_Wwlelbpc
Square Inscribed in a Circle:
http://www.mathopenref.com/constinsquare.html
https://www.youtube.com/watch?v=2gNfltBkbkI
Regular Hexagon Inscribed in a Circle:
http://www.mathopenref.com/constinhexagon.html
https://www.youtube.com/watch?v=USq_4tthP5Q
Equilateral Triangle Inscribed in a Circle:
http://www.zefdamen.nl/CropCircles/Constructions/triangle/intriangle_en.htm
https://www.youtube.com/watch?v=USq_4tthP5Q
Tangents to a Circle:
http://www.mathsisfun.com/geometry/construct-circletangent.html
http://www.mathopenref.com/consttangents.html