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Ministry of Education.
Kaua e rangiruatia te hāpai o te hoe; e kore to tātou waka e ū ki uta

Technology Unit Planning: Sunsafe Planning Unit: Overview and Learning Experiences

 

Sunsafe 2

Overview and Learning Experiences

Biotechnology and Soft Materials Unit
Semesters 1 and 2

Although this unit is both a biotechnology and soft material unit, this example focuses on the biotechnology part of the unit run over one term.

Level 2
Skin cancer

 and the metastasis of this cancer to other areas of the body is a huge problem in New Zealand for humans and animals... you are required to follow the key stages identified by the teacher to make headgear and lip and face sun blocks for an identified client.

Level 3
Skin cancer and the metastasis of this cancer to other areas of the body is a huge problem in New Zealand for humans and animals... you are required to design and make headgear and lip and face sun blocks for a client / type of stakeholder of your choice. The headgear must hold the lip and face sun blocks

Level 4
Skin cancer and the metastasis of this cancer to other areas of the body is a huge problem in New Zealand for humans and animals ....you are required to take advantage of this opportunity and to design and make a solution for a client / type of stakeholder of your choice. The solution should make use of resources from Soft Materials and Biotechnology and should fit together as one unit.

(We expect from the introduction hints and the resources available that most students will choose the options below but variations will be dealt with via negotiated outcomes that will be detailed as they happen).

Biotechnology section unit plan

In most lessons,

 

  • careers in Biotechnology are mentioned with special mention of medical advances
  • ethics relating to the topic are discussed
  • methods of assessment and achievement levels obtainable are discussed
  • laboratory skills are developed and the importance of keeping lab records as a method of control is facilitated via use of ratio sheets
  • opportunity is given for the development of each student's key competencies

The components listed in Green under each session below were used as an assessment focus for students throughout the unit.

Session 1
BD, ODE, TM

Combined introduction to unit to establish the context and issue via

 

  • a brief demonstration of how and why skin cancer occurs and how risks of getting skin cancer can be minimised, using models and diagrams (electromagnetic spectrum, UV index, SPF, skin structure, types of skin cells, melanin, tumour development, metastasis, free radicals, antioxidants, blocking out UVA and B rays)
  • demonstration and explanation of the resources available

Methods of assessment and achievement levels obtainable discussed / importance of stakeholder feedback stressed

Rules recapped / Folders checked / Booklets

Students make preliminary decision on client/type of stakeholder and write down initial conceptual statement (this can be modified any time before final product is made but the initial attempt will allow us to establish whether the student is working at Level 4, Level 3 or at Level 2).

If student is achieving at Level 2 or 3, the opportunity and need will need to be established for them before the end of the session so that they can do the homework below.

Homework:
Research stakeholder's specific needs and discuss possible solutions with stakeholder in preparation for compiling
specifications. These needs and the solution must be justified verbally during an interview with the teacher.

Session 2
BD, PFP, ODE, with TP, CoTO

Make the final decision on type of stakeholder. More detailed demonstration and explanation of the resources available and their limitations re equipment, time and cost / input, output and need to have control over process. Modify initial conceptual statement if necessary. Prepare a series of 12 test lip blocks that have varying oil:wax ratios / sample essential oils and become aware of the oils' limitations re stability in sunlight. Practise using SPF ratings to calculate how long a person will be protected by a sun block. Look at a pictorial case study of how the Body Shop produced a new shampoo. Become familiar with the flow chart and the Gantt chart method of planning. Discuss links between their and others past and current practice and how this could impact on the development of an outcome that reflects brief requirements. Become aware of our plan for the production of a lip block and sun block using the Gantt Chart that has been compiled for the unit.

Homework:
Allow client to decide wax:oil ratio from test lip blocks, SPF rating, flavour, sweetness level, oil type, colour, container, labelling for lip block and SPF, as well as such things as oils, fragrence and any other additions, for sun block in preparation for compiling more detailed specifications. This initial consultation should be recorded on the evidencetemplate (see attached) and the choices justified verbally during interview with teacher.

Sunsafe 3

Session 3
BD, PFP, ODE, TP, TM, CoT

Modify conceptual statement if necessary and compile skeleton specifications (attributes). Become familiar with the names and function of chemicals in sun block and of how biotechnologists are using living organisms to improve the effectiveness of sunscreens. Using the client's choices, decide on the type and ratio of chemicals for a unique lip block and use the ratios to create a sample recipe given that 0.5ml of beeswax can be used. Make sample lip block. Begin initial label designs. Teacher uses lego and other models to demonstrate and explain animal cell structure including structure and function of cell membrane. The video 'Voyage inside a cell' was also shown.

Homework:
Allow client to sample and evaluate the sample lip block and evaluate initial label designs for both products. This first evaluation should be recorded on the evidence template and the modifications justified verbally during interview with teacher.

Session 4
BD, TM, ODE, TP, PFP

Compile detailed specifications for lip block. Improve lip balm sample according to client's suggestions by manipulating ratios and using different chemicals. Modify label if necessary. Teacher demonstrates mitosis and the importance of conservation of chromosome number via chromosome replication model, diagrams, photographs and a variety of YouTube videos – this will allow students to observe the variety of ways that biotechnolgists present their work via video i.e. real life, artistic, school level, university level, entertainment, animated. Students start making own series of models of a cell (with only 2 chromosomes and 6 genes

 on a cell template with specially folded telomeres that get shorter with every division) undergoing both healthy cell division and mutations leading to tumour formation... this will continue through the following sessions.

Homework:
Allow client to evaluate improved lip block sample and labels if they were modified. This second evaluation should be recorded on the evidence template and any further modifications justified verbally during interview with teacher. Watch YouTube mitosis videos.

Session 5
BD, ODE, TP, PFP

Modify detailed lip block specifications if necessary. Select the specifications that will allow the student, the teacher and the stakeholder to evaluate the outcome. Improve lip block sample according to client's suggestions by manipulating ratios and using different chemicals if necessary. Modify labels if necessary. Make, bottle and label final lip block prototype. Continue work on mitosis models if time allows

Homework:
Allow client to evaluate lip block prototype. This final evaluation should be recorded on the evidence template and will be communicated to the teacher via a detailed written report or presentation during Session 8.

Session 6
BD, PFP, ODE, TP,

For the sun block, students are provided with a suggested ratio for chemical types and, using the client's choices, decide on the chemicals that they will use to create a unique sun block ... the ratio is provided due to time and cost restraints. Become familiar with the names and function of chemicals in sun block and of how biotechnologists are using living organisms to improve the effectiveness and safety of sun blocks. Prepare sun block sample.

Homework:
Allow client to evaluate sun block sample. This evaluation should be recorded on the evidence template and any further modifications justified verbally during an interview with teacher.

Session 7
BD, PFP, ODE, TP, COT

Compile detailed specifications for sun block. Improve sun block sample according to client's suggestions by changing type and amount of essential oil and sun screen. Package and label sun block prototype. Test on functions of sun block chemicals (see attachment). Continue work on mitosis models. Explanation of mutations via models...caused by virus, bacteria, chemicals, radiation, heredity, diet, hormones. If the cells are melanin cells then the tumour is a melanoma... tumours are carcinomas

, sarcomas, lymphomas, leukaemias
and can be benign, malignant and undergo metastasis (i.e. skin cancer) in more detail than introductory explanation.

Homework:
Allow client to evaluate sun block prototype. This final evaluation should be recorded on the evidence template and will be communicated to the teacher via a detailed written report or presentation during Session 8.

Session 8
ODE, TP, COT, COTO

Compile written report or verbal presentation that justifies the choice and ratio of ingredients in the lip and sun blocks and explains how well the lip and sun blocks have met the stakeholder's requirements.

Lip block and sun block can now be attached to head gear (if already made) in preparation for evaluation of final outcome in terms of how it addresses the need and opportunity in Session 8 of Soft Materials.

Cancer prevention via diet (antioxidants, pronutro, marmite, maize meal, nuts, chickpeas), regular exercise, maintenance of optimal BMI, avoidance of carcinogens

 (tobacco, sunlight, alcohol, trans fats, calories, cancer viruses), vaccinations (ethics with regards to cervical cancer vaccination) / screening tests... this will be a recap on the whole unit, as prevention is really intrinsic to entire unit.

Session 9 – floating lesson
COT

This extra session is designed to fit in as a whole or in parts anywhere from Session 2 onwards and is designed for students to gain a more thorough understanding of cancer causes, treatment and the latest cancer research findings by developing a basic understanding of structure and function of bacteria and viruses; the body's natural defence against disease and vaccinations; free radicals and antioxidants / DNA extraction from cauliflower / how you tan / latest research on sun block and false tans... it uses modelling and electron micrographs to explain concepts.

Sunsafe 4 large

Student outcome: sunblock and lip balm in a hat-pocket

 

 
Sunsafe: Overview & Learning Experiences | Achievement Objectives & learning outcomes | Links
 

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