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3. Experimental Skills (XS)

(a) Observation, Recording and Reporting

The ability to:

(i) use the senses to perceive objects and events accurately;

(ii) record the results of a measurement accurately;

(iii) select and use appropriate formats and presentations, such as tables, graphs
and diagrams;

(iv) organise and present a complete report in a clear and logical form using
spelling, punctuation and grammar with an acceptable degree of accuracy;
and,

(v) report accurately and concisely.

(b) Manipulation and Measurement

The ability to:

(i) handle chemicals carefully and use them economically;

(ii) appropriately prepare materials for observation or investigation; and,

(iii) assemble and use simple apparatus and measuring instruments.

(c) Planning and Designing

The ability to:

(i) recognise the problem and formulate valid hypotheses;

(ii) choose appropriate experimental methods and sampling techniques;

(iii) choose appropriate apparatus;

(iv) plan and execute experimental procedures in a logical and sequential form
within the time allotted;

(v) use controls where appropriate; and,

(vi) modify experimental methods after initial work or unexpected outcomes.

 PREREQUISITES OF THE SYLLABUS

Any person with a good grasp of the Caribbean Secondary Education Certificate (CSEC®) Chemistry
and Mathematics syllabuses, or the equivalent, should be able to pursue the course of study defined
by this syllabus. However, successful participation in the course of study will also depend on the
possession of good verbal, written communication skills.

CXC A11/U2/17 4