Background knowledge


Micro-organisms are of enormous value to us in the fields of medicine and food, as well in the natural environment. It is through the work of scientists that we have come to benefit from and understand some of the beneficial uses of micro-organisms.


Assessment guidelines


Assess the posters according to presentation and content using the criteria provided below:


Criteria


The information is well put together, relevant, interesting and concise. The presentation makes the poster easy to read and attractive.


Marks 10 10


Total: 20 marks


Practical activity 2


Investigate the growth of yeast under different conditions


Learner’s Book page 58 Guidelines to implement this activity


• This is a group activity. • Divide the class into groups and read through the method of the experiment with the class so they understand what to do.


• Ask them to make notes so they can write up a report on the experiment using the seven different headings indicated – refer them to the worked example on page 14 of the Learner’s book to help them.


• This activity is intended for formal assessment. • Use the criteria below to assess learners and record the marks for formal assessment. Criteria


Marks


The learner(s) report… has all seven sections (headings). has all the headings in the right order. describes meaningful results.


Activity 3 Discuss careers that require knowledge of micro- organisms


Learner’s Book page 59


Guidelines to implement this activity • This is a group activity.


52


7 3


10 Total: 20 marks


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