Shapes and Patterns — Question 2

Let us try to understand how this mat is woven by looking at the pattern in the first two rows.
Row 1 —2 over, 1 under, 2 over, 1 under, …
Row 2 —2 under, 1 over, 2 under, 1 over, …
You can use strips of the same colour or 2 different colours, one for each row.