Ginger Tea Punch
["8 single-serving-size tea bags", "1 (1 to 2-inch) piece fresh ginger, thinly sliced", "2 to 4 Tbsp. sugar", "2 (12 oz.) bottles or cans ginger ale, chilled", "1 orange, halved lengthwise and thinly sliced (optional)"]
["Place tea bags and ginger in a tea pot. Add 4 1/2 cups boiling water. Cover; let steep 3 to 5 minutes or until desired strength. Remove tea bags. Stir in sugar. Cool at room temperature 2 hours. Cover and chill until ready to serve."]
["fresh ginger", "sugar", "bottles", "orange"]