Place it in an area where you will pass by often. Check your plants every day to see how they are growing. Just as plants have different sun requirements, not all plants benefit from being watered every day. Check the soil. Plants in containers do tend to dry out more quickly than those placed in your garden.
Most plants do best when watered as the soil begins to dry out.
Very few plants do well in soaking wet soil. You and your children might enjoy keeping a gardening journal. Allow at least one page for each plant you grow. Your children can draw the plant, using the seed packet or a gardening book as their guide. Together you can track its pattern of growth, record how long it takes to spring up from under the soil, how long until it blooms, and if a vegetable, how long until harvest.