That terminology might not be clear to a non-expert.
If your wrench/spanner is pointed straight up to the sky like a clock hand at 12, rotate towards the back wheel to loosen, and towards the front wheel to tighten. Important! When you put the pedals back on and rotating toward the front wheel isn't working, you've grabbed the wrong pedal. Use the other one.
That terminology might not be clear to a non-expert.
If your wrench/spanner is pointed straight up to the sky like a clock hand at 12, rotate towards the back wheel to loosen, and towards the front wheel to tighten. Important! When you put the pedals back on and rotating toward the front wheel isn't working, you've grabbed the wrong pedal. Use the other one.