Recipe RatiosLearn the mathematics required to adapt recipes to serve a different number of people. 
Spicy Lemon Shrimp Soup (Serves 2)
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
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 and serve straight away. There should be a unique sweet and spicy flavor. Garnish with Thai Parsley.
InstructionsTry 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. When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file. 



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Mathematicians are not the people who find Maths easy; they are the people who enjoy how mystifying, puzzling and hard it is. Are you a mathematician? Comment recorded on the 3 October 'Starter of the Day' page by Mrs Johnstone, 7Je: "I think this is a brilliant website as all the students enjoy doing the puzzles and it is a brilliant way to start a lesson." Comment recorded on the 19 October 'Starter of the Day' page by E Pollard, Huddersfield: "I used this with my bottom set in year 9. To engage them I used their name and favorite football team (or pop group) instead of the school name. For homework, I asked each student to find a definition for the key words they had been given (once they had fun trying to guess the answer) and they presented their findings to the rest of the class the following day. They felt really special because the key words came from their own personal information." 


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Go MathsLearning and understanding Mathematics, at every level, requires learner engagement. Mathematics is not a spectator sport. Sometimes traditional teaching fails to actively involve students. One way to address the problem is through the use of interactive activities and this web site provides many of those. The Go Maths page is an alphabetical list of free activities designed for students in Secondary/High school. Maths MapAre you looking for something specific? An exercise to supplement the topic you are studying at school at the moment perhaps. Navigate using our Maths Map to find exercises, puzzles and Maths lesson starters grouped by topic. TeachersIf you found this activity useful don't forget to record it in your scheme of work or learning management system. The short URL, ready to be copied and pasted, is as follows: 

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© Transum Mathematics :: This activity can be found online at:
www.transum.org/Maths/Exercise/Ratio/Recipe.asp?Level=5
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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 selfmarking exercises.
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See the National Curriculum page for links to related online activities and resources.
The recipes used in this exercise are from Hot Sak's.
This video is from Jonathan Robinson
Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly. You can doubleclick the 'Check' button to make it float at the bottom of your screen.
Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.
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