Uploaded May 2022 | Updated September 2026, 2 weeks ago
Some say the hoizontal method (youtube.com/watch?v=sP4_2aKoGP4&t=10s) confuses students becaue it is different to what they see in books. So here a a vertical version.
Some say the hoizontal method (youtube.com/watch?v=sP4_2aKoGP4&t=10s) confuses students becaue it is different to what they see in books. So here a a vertical version.










