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Kitchen 3-5 / Week 06 / Thursday
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Week 06 · Fractions in the Kitchen

Thursday

The half-batch card
// Halve it, double it, add it up
⏱ about 15 min

Thursday: The Half-Batch Card

Hazel the Hedgehog copies Ferris's big recipe onto a new card, in half.

"I split every amount by 2," she says, tapping her pencil.

Bennie checks her work. "What do you notice about the flour and the eggs?"

Riley points at the sugar line. "Here is a hint," he says. "Two thirds is tricky."

Big batch and half-batch

IngredientBig batch (2 loaves)Half-batch (1 loaf)
Ripe bananas42
Eggs21
Cooking oil1/2 cup1/4 cup
Sugar2/3 cup1/3 cup
Flour2 cups1 cup
Baking soda1 teaspoon1/2 teaspoon
Salt1/2 teaspoon1/4 teaspoon
Cinnamon1 teaspoon1/2 teaspoon

Why is half of 2/3 cup equal to 1/3 cup?

Because 1/3 plus 1/3 is 2/3. So 2/3 splits into two 1/3 parts.

Recipe: Half-Batch Banana Bread
Makes: 1 small loaf.
Ingredients:
2 ripe bananas
1 egg
1/4 cup of cooking oil
1/3 cup of sugar
1 cup of flour
1/2 teaspoon of baking soda
1/4 teaspoon of salt
1/2 teaspoon of cinnamon
Allergy swap: Egg or wheat allergy? This bread needs both, so make the Week 1 Rainbow Fruit Cups instead.
  1. You: Wash your hands with all five steps.
  2. Grown-up: Heat the oven to 350 degrees F and oil a small loaf pan.
  3. You: Mash the bananas in a big bowl with a fork.
  4. You: Crack in the egg. Wash your hands, because you touched raw egg.
  5. You: Add the oil and sugar. Whisk them together.
  6. You: Measure the flour, baking soda, salt and cinnamon. Fold them in gently.
  7. You: Wash your hands again, because you touched raw flour.
  8. Grown-up: Pour the batter into the pan and bake it in the oven.
  9. Grown-up: Bake until a toothpick in the middle comes out clean.
  10. Grown-up: Take it out with oven mitts. Let it cool before slicing.
  11. Everyone: Taste the cooled bread and clean up together.
Safety first
A grown-up handles the oven, the hot pan and the knife.
Never taste raw batter made with flour or egg.

Recipe math: times a whole number

Lucy wants 3 small loaves for the trail party. Each loaf uses 1/4 cup of oil.

3 times 1/4 is 1/4 plus 1/4 plus 1/4. That is 3/4 cup of oil.

3 loaves each use 1/3 cup of sugar. How many thirds of a cup in all?
2 loaves each use 1/2 teaspoon of cinnamon. How many teaspoons in all?
4 loaves each use 1/4 teaspoon of salt. How many teaspoons in all?
FIND IT ON THE CARD
  • Read the question.
  • Tap your answer.
How much flour does the half-batch use?
Who uses the oven?
Can you taste the raw batter? Type yes or no.
WHY THIS EXERCISEOnly taste the bread after it is baked.

Card checker! Tomorrow Freddy has a fraction quiz for you.

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