Homemade Strawberry Muffins

Ingredients:

3 cups all-purpose flour
1 tablespoon baking powder
1/2 teaspoon baking soda
1 1/2 tablespoons ground cinnamon
1 1/4 cups milk
2 large eggs, beaten
1 cup butter, melted
2 cups fresh strawberries, diced
1 1/2 cups sugar