The autumn term is not a great time for planting but you can plant bulbs that will flower in the spring. They are easy to plant but a bulb planter really helps. These pull out a plug of soil leaving a hole into which you place the bulb. You can then simply drop the soil back into the hole. Much easier than using a trowel and if the soil is soft enough, Nursery children can do a perfectly good job with these.
Bulbs will grow in planters,in the soil and many will do perfectly well planted in small pots. Children love to plant one in a pot and take it home for the window sill.