Biology Problem-based Learning

Done by:

Toh Jia Hui (3A130)

Lim De Jun (3A116)

Our identified group…

Hwa Chong Sporting Athletics

Sporting HCI boys leads “active” lifestyles

Sedentary – mundane activity associating with day-to-day lifeSlightly active - physical activity equal to walking between 1.5 and 3 miles per dayActive - physical activity equal to walking more than 3 miles per day

Our identified group overall needs Our identified group overall needs to have around 2800-3200 calories to have around 2800-3200 calories intake a day.intake a day.

Amount of calories active boys need…

Our Identified Stall… Stall 6: Western Food

Meal: Pork Chop

Contains :

150g of pork chop

A 35g chicken hot dog

3 slices of cucumber

One bowl of tomato rice

Conversion to calories

150g of pork chop

35g chicken hot dog

3 slices of cucumber

One bowl of tomato rice

80 calories

390 calories

1 calorie

235 calories

Pork Chop meal usually taken as lunch by HCI atheletes.

Our identified group need 2800 – 3200 calories per day

Let’s take the minimum of 2800 calories they need to maintain a healthy and balanced diet.

Assuming that they take 3 meals (Breakfast, Lunch, Dinner) everyday, the essential nutritional value they need for each meal is therefore 2800/3 = 934 calories

Evaluation on whether it provides adequate nutrition

In addition…

There’s a lack of fruits and vegetables section which is the second most important from the food pyramid.

With only 3 miserable ( ) slices of decorative cucumber and some pieces of tomato in the rice, which are too small in amounts, hence the current meal is unbalanced.

Have a variety of foodHave a variety of food– meals on starchy foods and meals on starchy foods and

eating at least five portions of eating at least five portions of fruit and vegetables a dayfruit and vegetables a day

Healthy Diet…

Consists of:Consists of:• Rice from “rice and alternatives” section in the food Rice from “rice and alternatives” section in the food pyramidpyramid• Little proportion of cucumber and tomato from the Little proportion of cucumber and tomato from the “fruits and vegetables” “fruits and vegetables” • Pork chop and chicken hot dog from the “meat and Pork chop and chicken hot dog from the “meat and alternatives categories” alternatives categories”

Low amountLow amount of food from “vegetables and food” categories of food from “vegetables and food” categories in the current mealin the current meal

Therefore we propose…

Addition of 150g of coleslaw

Which is a salad consisting mayonnaise and cabbage

Coleslaw:Coleslaw:- Healthy food consisting mainly of - Healthy food consisting mainly of cabbagecabbage

-increases percentage of “fruits increases percentage of “fruits and vegetables” content and vegetables” content

-opens up one’s appetite-opens up one’s appetite

- 150 grams of coleslaw consists of - 150 grams of coleslaw consists of approximately 237 caloriesapproximately 237 calories

Modified meal now amounts to Modified meal now amounts to 943 calories, more than enough 943 calories, more than enough to supply an active Hwa Chong to supply an active Hwa Chong boy of his nutritional needs boy of his nutritional needs

““Fats, oil, salts and sugar” Fats, oil, salts and sugar” section on the topmost of the section on the topmost of the health pyramidhealth pyramid– not chosennot chosen to be implemented to be implemented – unhealthy unhealthy – cannot be taken too much or in cannot be taken too much or in

excess. excess.

CaloriesCalories 158158

CarbohydrateCarbohydrate 5.25.2

ProteinProtein 2.22.2

FatFat 14.314.3

FibreFibre 1.61.6

AlcoholAlcohol 0.00.0

Amount of calories in 100g Coleslaw

Adding Coleslaw…

– According food pyramid, adding more vegetables into According food pyramid, adding more vegetables into the meal = more beneficialthe meal = more beneficial

– Active students = enough nutrition to last through the Active students = enough nutrition to last through the dayday

– promote good balance between meat and vegetables promote good balance between meat and vegetables – More calories!More calories!

Modified meal stands an edge over current meal bringing Modified meal stands an edge over current meal bringing about much benefitsabout much benefits– physically active students to have enough nutrition to physically active students to have enough nutrition to

last through the day upon consumptionlast through the day upon consumption

– According food pyramid, adding more vegetables into According food pyramid, adding more vegetables into the meal = more beneficialthe meal = more beneficial

– Active students = enough nutrition to last through the Active students = enough nutrition to last through the dayday

– promote good balance between meat and vegetables promote good balance between meat and vegetables – More calories!More calories!

Modified meal stands an edge over current meal bringing Modified meal stands an edge over current meal bringing about much benefitsabout much benefits– physically active students to have enough nutrition to physically active students to have enough nutrition to

last through the day upon consumptionlast through the day upon consumption

Comparing…Meal of 943 calories VS current meal of 706 caloriesMeal of 943 calories VS current meal of 706 calories

Cost effective…As we have found out, 1kg of cabbage is about $1.50.

Therefore, each serving of 150g is about $.0.20.

One to two spoons of mayonnaise is $0.20 too.

With a base cost of $1.50 for 150g of pork chop, $0.20 for sausage and adding the coleslaw, it would add up to about $2.10 per serving. The stall vendor can still profit from selling the pork chop at $2.80 with a $0.70 profit in the end.

Weight loss ResourcesWeight loss Resources. 26 May 2009, 08:29; with an account. 26 May 2009, 08:29; with an account <http://weightlossresources.co.uk>.<http://weightlossresources.co.uk>.

Family Doctor Online. 27 Mar 2009, 23:52 UTC. 25 Apr 2009 Family Doctor Online. 27 Mar 2009, 23:52 UTC. 25 Apr 2009 <<http://familydoctor.org/online/famdocen/home/healthy/food/general-nutrition/http://familydoctor.org/online/famdocen/home/healthy/food/general-nutrition/911.html911.html>.>.

WikiAnswers, WikiAnswers, 8 Jan 2009, 04:31 UTC. 25 Apr 2009 8 Jan 2009, 04:31 UTC. 25 Apr 2009 <<http://wiki.answers.com/Q/How_many_calories_are_in_ricehttp://wiki.answers.com/Q/How_many_calories_are_in_rice>.>.

Nutrition; Healthy Balanced Diet Nutrition; Healthy Balanced Diet 12 Ap 2009, 09:31 UTC. 25 Apr 200912 Ap 2009, 09:31 UTC. 25 Apr 2009 <http://www.nutrition.sg/healthy-balanced-diet.php>.<http://www.nutrition.sg/healthy-balanced-diet.php>.

Weight loss ResourcesWeight loss Resources. Calorie Counter 26 May 2009, 08:29. Calorie Counter 26 May 2009, 08:29 <http://www.weightlossresources.co.uk/calories-in-food/salad/Coleslaw.htm>.<http://www.weightlossresources.co.uk/calories-in-food/salad/Coleslaw.htm>.

Weight loss ResourcesWeight loss Resources. Calorie Counter 26 May 2009, 16:27. Calorie Counter 26 May 2009, 16:27 <http://www.weightlossresources.co.uk/calories/calorie_counter/chicken_meat.htm>.<http://www.weightlossresources.co.uk/calories/calorie_counter/chicken_meat.htm>.

UK Yahoo AnswersUK Yahoo Answers. How much Calories/Meal 26 May 2009, 15:31. How much Calories/Meal 26 May 2009, 15:31 <http://uk.answers.yahoo.com/question/index?qid=20081118164229AAZzcN0<http://uk.answers.yahoo.com/question/index?qid=20081118164229AAZzcN0

Bibliography…