# Problem of the Week - November 20- November 24

Lower Elementary:
Question: Nicholas is folding square napkins for Thanksgiving dinner. He first folds each napkin in half vertically. Next, he folds the napkins in half horizontally. Finally, he folds the napkins in half diagonally. What shape are the napkins when Nicholas finishes folding them?
Solution: After Nicholas folds the square in half, he has a rectangle. After he folds the rectangle in half, he has a square again. After he folds the square in half along the diagonal, he has a triangle.

Upper Elementary:
Question: Anna has a green bean casserole recipe that calls for 1/3 of a stick of butter, 1/2 a cup of sliced mushrooms, 2 cups of green beans, 3 cups of chicken broth, and 30 fl. oz. of cream of mushroom soup. The recipe makes enough casserole for 4 people, but there are 6 people in Anna’s family. How much of each ingredient does she need to have exactly enough green bean casserole?
Solution: Since 6 is 4 × 11/2, we’ll need to multiply the amount of each ingredient by 11/2. So, Anna will need:
1/3 × 11/2 = 1/2 of a stick of butter
1/2 × 11/2 = 3/4 of a cup of mushrooms
2 × 11/2 = 3 cups of green beans
3 × 11/2 = 41/2 cups of chicken broth
30 × 11/2 = 45 fl. oz. of cream of mushroom soup

Middle School:
Question: Matthew has a recipe for apple cider that calls for 24 apples and yields 5 cups of cider. How many apples should Matthew buy if he wants to fill a 12–cup pitcher with apple cider?