If you find yourself in a spring time slump, spend time outdoors on nature walks looking for signs of spring. Anna Comstock's Handbook of Nature Study can provide you with many ideas to begin investigating the great outdoors. Try to figure out what type of trees are planted in your yard by examining the bark and leaves. If it is warm enough to plant seeds outside, begin a flower or vegetable patch for each child. If it is still too soon to plant outside, plant seeds in peat pots indoors.
Spring is also a good time to learn more about weather and clouds.
If you live near a pond go looking for frog eggs. See if you can spot the places that birds are beginning to build their nests. There are also books for each of the other seasons in this series. Being prepared ahead of time to pull out fun activities will help you turn a slump into a week you will never forget. A blizzard is a perfect opportunity for a mini unit study on snow.