Student's design solutions

Limehills School

Germ Tag - Education campaign game.

Instructions

In the game there are 4 germs, 5 normal people, and 1 doctor.
The 5 normal people wear the giant hands and have to run away from the germs. The germs have to pick up the plastic germs and try to stick them on the normal people's giant hands. The Doctors have to try and get the germs off the infected normal people's giant hands
.

Designed by the Reading Group.

 

 

Instructions

There are 5 big leaves, and they catch the rain and send it down a bamboo pipe into a tank. There are three tanks, the first tank catches the water from the bamboo pipe and sends it into the 3rd tank, which has a ball cock in it so when the water drops, the first tank sends water down a plastic pipe into the. If both tanks are full then you remove the pipe and put it in the 2nd which is a spare tank.

Next to the 3rd tank is a bamboo hut called the Sanitizing Wash-mi-call-it. Inside the hut is a foot pump and a soft elbow pad. When you push the foot pump down with your foot it pulls a small leaver which lets out a few drops of the soap (from the soap recipe below) onto your hand. Then you rub your hands together and sing the song we composed to the tune of Frere Jacques. Then you elbow the soft pad which pulls another leaver and releases a small amount of water from the 3rd tank to wash off the soap.

HOW TO MAKE YOUR OWN SOAP

Ingredients:

Palm oil
Wood ash
Cold water

Boil the water over heat to kill bugs or dirt. Let the water sit once boiled, in the shade to cool. Pour the water into a non metal pot. Slowly add the wood ash, a little bit at a time, with a fragranced stick, to deterrent for mosquitoes, lice, fleas, and ticks. Don't breathe the vapor. In a separate pot melt the palm oil then pour into a plastic pot. Add the wood ash paste and mix thoroughly until it looks like a thick pudding. Let it sit until hard ( could be up to a week ) then cut into bars. Make chips from your home made soap cake and add boiled water and mix. Hint: when a potato or egg floats in the wood ash it is thick enough.

Song of Soap

Tok Pigeon version

Wasim han
Wasim han

Em bai kilim jerm
Em bai kilim jerm

Bai yu nais na helti
Bai yu nais na helti

Na gulpla moa
Na gupla moa

Yusim lek pam
Yusim lek pam

Na bai yu kisim sop
Na bai yu kisim sop

Wantaim sampla wara
Wantaim sampla wara

Bai yu nais klin

English version

Wash your hands
Wash your hands

It'll kill the germs
It'll kill the germs

You'll be nice and healthy
You'll be nice and healthy

And much better off
And much better off

Use the foot pumps
Use the foot pumps

Out will come some soap
Out will come some soap

Then a little water
Then a little water

And you'll be nice and clean

 

Click this graphic for a PowerPoint presentation of the health education book.

John la Roche, engineer comments...

· Effectiveness
This design has some really innovative ideas. Firstly the need for sufficient area to catch rain and funnel it into a tank for storage is really important. Using five big leaves to catch the water and funnel it into the collecting tank is a great idea. Leaves usually have ribs, which would help to funnel the water to the bamboo collecting tube. Although the leaves might wither and dry, possibly there could be fresh leaves picked as replacements if there is a suitable tree nearby.
And the storage tanks are also a good idea to take advantage of a good downpour and store the water ready for use until it is needed. Having a ball cock on the third tank to fill it when it drains down is also an excellent idea to provide water needed for hand washing.
Also to be commended are the innovations for the washroom to provide a few drops of soap from a foot-operated dispenser, and then a small quantity of water by an elbow-operated lever prevents dirty hands from contaminating a tap or other water release device.

To do all this in the special "Sanitizing Wash-mi-call-it Room" while singing the Song of Soap is a really good idea, ensuring that the hands are well cleaned with soap before washing and the children will remember why they need to wash their hands.

· Durability
While the leaves could need regular replacement, if a suitable tree is growing nearby this could be very easily done by the school children. Having three storage tanks will provide water for hand washing when conditions are dry and there has been no rain. Using bamboo as pipe is utilising a cheap readily available local material, which should last reasonably well, but could be easily replaced when necessary.

· User-friendliness
The whole arrangement is very user-friendly, with the special sanitizing hand-wash room and the facility for getting soap and water without contaminating the equipment with dirty hands. The Limehills students have understood the important health benefits of hand washing and carefully considered how to prevent germs from dirty hands being transferred to others using the hand washing facility.

· Cost
While the cost of this facility will be greater than other designs utilising recycled plastic bottles, it has much greater capacity to store water for times when there is no rain, and tanks made from second-hand plastic drums or similar locally available material should not be too expensive. The lever operated soap dispenser and elbow operated water dispenser would need careful design and manufacture, adding to the cost, but if a large number of schools were to employ this design the cost would be minimised.

· Communication
The Limehills students must be highly commended for their game using germs, people and a doctor. Children will have fun playing this game and learn about the importance of germs. And the "Song of Soap" which children sing when washing their hands will make sure everyone remembers why they need to wash their hands. By singing it they will take time to wash their hands thoroughly and everyone will learn.

I must highly commend Limehills Students for a very well thought-out and innovative design solution to this difficult health problem.

Dr Norris comments...Cool idea. People will remember your ideas and it would be fun however it might be better to have a nurse rather a doctor. Perhaps the students in PNG have not met many doctors. Perhaps an even better idea would be to have huge, human giant drops of water keeping the germs off. That would be really fun!

More pages of solutions from:

Glen Eden Intermediate School

Argyll East School

Saint Kentigern's College

Waikowhai Intermediate School

Hukarere Girl's College