Hands-off Healing
Curriculum focus activity
Technological Knowledge:
- Technological Products Level 2
- Technological Systems Level 2
FOCUS QUESTIONS
- What considerations would have to be addressed in the choice of construction materials?
- If the operation of the device is considered in terms of a system, identify inputs, outputs and controlled transformations.
TECHNOLOGICAL PRODUCTS LEVEL 2
Indicators of progression:
- Describe the properties of the materials from which simple products are made.
- Explain that the materials in simple product are used because of specific performance properties
Related information from the case study includes:
Aluminium is used for the casing because it is light, simple to machine and easy to clean.
Acrylic is used to protect the laser lights because it is transparent, light, does not scratch easily and is easy to clean
TECHNOLOGICAL SYSTEMS LEVEL 2
Indicators of progression:
- Understand the nature of the inputs within simple technological systems.
- Understand how the inputs and the nature of the transformation process enables the creation of the desired outputs.
Related information from the case study includes:
Two pictures of the wound are input into the device - one showing area and one showing depth of the wound.
A stylus is used to draw around the screen image of the wound.
Processing software calculates the area defined and the new measurement can be compared with stored data giving a clear indication of how well the wound is healing.
Data can be stored to be downloaded later into the hospital database.
