slides

Lego – https://docs.google.com/presentation/d/1c8a6TYafOreo1tmbZlNuSR9M9ggCdaCDEymFTG_cSSs/edit?usp=sharing

https://docs.google.com/presentation/d/1SMi7A25cg6tZAAWSkLg_ylCG5vAYrDVfNKmuSaAqnmE/edit?usp=sharing

https://docs.google.com/presentation/d/1xuq1oCPXOCtbzYZht5mLQ-t45yaVERHfiThWER5lI8U/edit?usp=sharing

https://docs.google.com/presentation/d/1ycfWnSHalymnHhSMM22MSzbZqOdXE71_TR6r9vBkLPk/edit?usp=sharing