שיעור 1
https://docs.google.com/document/d/1Sq3pe-mYUxiSBrqj5PPDeNk59hIdvFcZrN9UIMB_kRw/edit?usp=sharing
שיעור 2
https://docs.google.com/document/d/1T2CkoR7TwgS1jT7Ojl1QlYpOTJLPuiRhNPzHM1q5Zow/edit?usp=sharing