It finally rained enough for long enough for me to have a filled ditch long enough for tadpoles to be in it.  I used a fine screen net to sift them out.  I have 3 tadpoles in one jar and I put what appear to be tadpole eggs in another jar.  I've put in some small plant in the jar in case they also happen to like to feed on the roots.

Below is a clip of the three tadpoles in the one jar: