Docstoc

Salters Advanced Chemistry AS coursework OCR GCE Chemistry B _Salters_

Document Sample
Salters Advanced Chemistry AS coursework OCR GCE Chemistry B _Salters_ Powered By Docstoc
					A LEVEL CHEMISTRY
   AT STOKESLEY
      SCHOOL
     Salters Advanced
         Chemistry
      AS Coursework
OCR GCE Chemistry B (Salters)




     From September 2008
           (H035)
       Skill area I - Competence
 Carry out practical work competently and safely using a range
                           of techniques

• Direct observation of practical work (see
  next slide)
• Marks awarded using generic descriptors,
  provided by OCR (see Appendix B in
  specification)
• Descriptors are applied as ‘best fit’ over the
  whole range of practical activities to give one
  overall mark out of 6
• The experiments to assess are provided on a
  sheet to fill in once the moderator asks for
  them.
Skill I contd.
Practical work over time as a normal and
integral part of their study of chemistry.
The practical activities must provide
opportunities for the candidate to …
• carry out a titration;
• make thermochemical measurements;
• carry out qualitative experiments using test-
  tubes;
• carry out an experiment involving ICT;
• prepare an organic compound;
• collaborate with other students in solving a
  problem
 Skill I contd.

 • Teachers must keep a record of the
   candidates’ achievement over time
 • specimen to be supplied by OCR (see next
   slide, provided by OCR, for us to complete)
 • The activities suggested are those which we
   ideally have a comment/judgement for
 • Best fit mark out of 6 is doubled to be out of
   12
It is expected there will be a good fit between the mark
awarded for skill I and those awarded for skills II and IV
This will be completed as part of the coursework tasks…
Candidate name

Candidate number


Titration
(EL1.2, ES4.1, ES5.1, A3.2)


Thermochemical
measurement
(DF2.1, DF2.2)


Qualitative tests
(EL4.1, ES2.2, ES4.4, ES6.2,
A9.1, PR2.1)


Use of ICT
(EL1.3, DF2.2, ES4.4, A6.2)


Preparation of an organic
compound
(DF4.4, ES6.3, PR4.3)


Collaboration with other
candidates
(ES4.1, A3.3)

Teacher mark (/6)

Final total 2 (/12)
• For each class, a sheet for a particular
  activity can be kept to help when
  needed later…for example…
                         Title of activity :     EL1.2   TITRATION

   Skill 1 competence
         criteria
                                     A N OTHER
                         JO Bloggs




       weighing by
       difference
          (/ )

    Making a solution
         (/ )


     using a burette
         (/ )

  filling a pipette
          (/ )

   Finding an endpoint
         (/ )
      Skill areas II and III –
• Skill II (Measurement) – carry out
  quantitative experiments accurately and make
  and record reliable and valid measurements
  with appropriate accuracy and precision;

• Skill III (Analysis and evaluation) – apply
  chemical knowledge and processes to
  unfamiliar situations to analyse and evaluate
  their own quantitative experiments

• These skills are done together – never do skill
  III before skill II. the information in skill II
  feeds skill III
         Skill areas IV and V –
• Skill IV (Observation) – make and record valid
  qualitative observations with appropriate
  accuracy and detail;
• Skill V (Interpretation) – recognise, recall and
  show understanding of chemical knowledge to
  interpret and explain their own qualitative
  experiments, with due regard to spelling,
  punctuation and grammar and correct use of
  technical terms.
• These skills are done together – never do skill V
  before skill IV. The information in skill IV
  feeds skill V
 Skills II, III, IV and V may be assessed
 in separate activities or they may be
 assessed together in two separate
 activities as follows:
• Skills II and III;
• Skills IV and V.



These activities are provided by OCR
 and downloaded from the secure site
 - Interchange.
     Which tasks and when?
• 3 assessment tasks will be provided for each
  skill area (excluding skill I – teacher
  assessed)
• These will be available from Interchange
• These tasks will be refreshed/replaced in the
  June of any year ready for the next academic
  year
• Ideally tasks should be carried at appropriate
  times across the course eg after doing an
  enthalpy experiment in DF then do an
  assessment on the same topic (if available
  that year)
                  Moderation
• Each task is marked out of 12, total max mark 60.

The following should be submitted for moderation:

• an F333 – Skill I (Competence) – Experiment
  Description and Mark Sheet (latter from OCR)
• an F333 Skill Area Mark Sheet (from OCR)
• details of the activities on which of marks in skill
  areas II, III, IV and V is based
• candidates’ work on which marks in skill areas II,
  III, IV and V is based for those candidates in the
  moderation sample

				
DOCUMENT INFO