Link                           lesson number                         Description

https://youtu.be/Ix3WvfOC_mY    (1)                           basic window

https://youtu.be/ZyGo0gZazPk    (2)                           canvas basics

https://youtu.be/5A_jgzkpb8g    (3)                           frames, buttons, entry, focus 

https://youtu.be/Kyg-XHR_ik4    (4)                           geometry managers (pack, grid, place)

https://youtu.be/gnQmdpAk0fc    (5)                           LabeFrame, variables, ComboBox  (ttk)

https://youtu.be/Ivg4YLELirQ    (6)                           check boxes and radio buttons 

https://youtu.be/AMtowkWyKhc    (7)                           ScrollText 

https://youtu.be/384OITvbSl0    (8)                           Bind events to actions (globals)

https://www.youtube.com/watch?v=Di5FSglGdNM&t=25s (9)         callback functions, lambda (bind)

https://youtu.be/07AgSz_MeyE    (10)                          More on events, simple animation, menu

https://youtu.be/fsVZfCRo8MM    (11)                          Small application (conver C to F degrees)






App (loan calculator - long)
https://youtu.be/d98ViAoJ4Qw