Lesson over 4.1: https://drive.google.com/file/d/1tuSBGvNQoOUqIwXA7T7TkwAVl94RrW6n/view
Lesson over 4.2: https://drive.google.com/file/d/1D9QHQWTc2HLVmNV5G7nW-YA5dcWGD05Q/view
Lesson over 4.3: https://drive.google.com/file/d/1CDgN4LqW_H5MzjfkifHn2YWoDNfJMTqn/view
Lesson over 4.4: https://drive.google.com/file/d/1IOCeZJPNm6xcZfkC5hkW8DT-VvGAVxMJ/view
Lesson over 4.5: https://drive.google.com/file/d/1i6bpxI8asX67d10CzSL5Tje_gIKsvlJ8/view
Lesson over 4.6: https://drive.google.com/file/d/1JQ5a69WTuCIad0T_9ZgoK6dmpysseLgd/view
Lesson over 4.8: https://drive.google.com/file/d/1ly2rg8Ny17IgHPkjyzmkTsUNQs5dSXkh/view
Lesson over prime factorization: https://drive.google.com/file/d/1Uy9nP1rpU0ZVKftVAD96A5cnVI5u4gDV/view
Lesson over roots: https://drive.google.com/file/d/1k1QsJ7RNvDuGu36MjKB9r4Gik-q__T64/view
Lesson over Comparing Real Numbers: https://drive.google.com/file/d/1kQCPSlzqCQY4JrqqYT-clBYrI3Zv4364/view