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Recipe Ratios

Learn the mathematics required to adapt recipes to serve a different number of people.

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Gwittyo Tom Yam Gung:.

Spicy Lemon Shrimp Soup with Noodles (Serves 2)

Ingredients

80g Shrimp
60g mushrooms
1 stalk of lemon grass (sliced)
4 or 5 lime leaves
Bunch of Thai parsley
1 tbsp Tom Yam Chili paste (Can buy in a jar)
1½ tbsp Sugar
5 tbsp Milk
3 cups of pork stock
1 tbsp Lemon Juice
1½ tbsp Fish Sauce
2 tbsp Tamarind Juice
100g Sen Mee noodles]
Crushed peanuts

How many tablespoons of sugar will be required to make this recipe for four people?

Correct Wrong

How many grams of shrimp will be required to make this recipe for five people?

Correct Wrong

How many people were served if nine cups of pork stock were used in a scaled up version of this recipe?

Correct Wrong

How many people were served if 210 grams of mushrooms were used in a scaled up version of this recipe?

Correct Wrong

What is the minimum number of lime leaves needed if this recipe is to be made to serve nine people?

Correct Wrong
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Ingredients

Method

Bring the stock to the boil and add mushrooms, tamarind juice, fish sauce, sugar, lemon grass, the leaves, shrimp, chili paste

After about 3 minutes add the milk and turn off the heat

Add 1 tbsp lemon juice then prepare the noodles

Bring some water to the boil in a large wok. Add the noodles until they soften

Drain the noodles

Add the tom yam gung to the noodles and serve immediately. Garnish with crushed peanuts.

Instructions

Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

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Description of Levels

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Level 1 - Cow Pad Gung (Fried Rice with Shrimp) Increase quantities by integer multiplication

Level 2 - Massaman Gai (Chicken and Potato Curry) Increase quantities by multiplication

Level 3 - Gai Gorae (Spicy Grilled Chicken) Decrease quantities

Level 4 - Gwittyo Tom Yam Gung (Spicy Lemon Shrimp Soup with Noodles) Mixed questions

Level 5 - Tom Yam Gung (Spicy Lemon Shrimp Soup) Hardfer mixed questions

Level 6 - Geng Jute Jang Ngok (Glass Noodle Soup With Pork) Puzzling questions

More on this topic including lesson Starters, visual aids, investigations and self-marking exercises.

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Curriculum Reference

See the National Curriculum page for links to related online activities and resources.

The recipes used in this exercise are from Hot Sak's.

Example

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