transmission problems

Today when I was driving home from school I sopeed at a stop sign put it back in 1st and when I let out the clutch nothing happend, It was like it was in neutral. when i gave it gas the speedometer would go up but thats it. Can anyone help me? Or at least tell me whats wrong.

Thanks guys

The speedo went but the car didn’t? Check your axles and c/v joints. You should have noticed some noise though. The speedo works off the output (or at least it should) so for the speedo to be moving your tranny seams to be working. Could be the ring and pinion or the axles.