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 should be ready to harvest within 60 days of planting. Harvesting beets is really a matter of preference when it comes to the right size for harvesting. They are ready any time after you see the shoulder protruding at the soil line.