We also direct sowed our carrot, lettuce and pea seeds. We had so much fun building bamboo teepees for our pea plants (and later, green bean plants) to grow up.
(We live in the city so we take advantage of any bit tof garden space we can find!)
As soon as the seeds were in the ground, Eva began asking when they would grow. We made a little chart to keep by the back door with our guesses as to what would sprout first.
Now everyday when we go outside, we check to see if anything has sprouted. It is so exciting!