Encourage students to take advantage of the free resources available at their local library. They may know they can get books, but they may not know that they can check out movies, video games, use the computer, or join community reading programs (many of which have incentives for summer reading).
Like cabbage and cabbage sprouts, Brussels sprouts are a cool weather crop. They should be harvested when the sprouts are small, compact and bright green. Avoid yellowing sprouts with signs of wilt rot or insect damage. Harvest sprouts when they are no larger than 1 to 1 1/2 inches in diameter.
Beets take a bit longer than radishes and are great for succession planting. They should be planted about every 3 weeks from March to September in order to maintain a nice continual harvest. The average time for a beet to become ready to harvest in around 50-70 days. Beets are a nice crop to have in the garden because you can use the entire plant.