Serves 8 / Food lesson: Do you know how much sugar is in a 12-ounce can of soda? It’s a math problem: If the can says 40 grams of sugar, and there are 4 grams sugar per teaspoon, that equals 10 teaspoons of sugar in one can. Cooking lesson: You can make this into fruit floats by putting the sherbet in a glass and topping with sparkling juice.

1 pound frozen strawberries

1/2 cup fruit-flavored or vanilla yogurt

Water, as needed

Agave nectar, to taste (start with 1 tablespoon)

1. Put strawberries and yogurt in a food processor along with a couple of tablespoons water. Process until just smooth and creamy; stop to scrape down sides as needed. Add agave nectar to taste (go easy). If fruit does not break down completely, add a little more water through the feed tube, a tablespoon or two at a time, being careful not to overprocess or the sherbet will liquefy. Serve immediately.

PER SERVING: 40 cal, 9% fat cal, 0g fat, 0g sat fat, 2mg chol, 1g protein, 9g carb, 1g fiber, 9mg sodium