Practical and Continuous Assessment Components
How marks are earned
Practical and continuous assessment marks come from laboratory work, notebooks, project work and classroom participation. These marks are relatively secure: they reward consistent, documented work rather than last-minute effort.
Concepts to understand
- Practical report structure: aim, apparatus, theory, procedure, data table, calculation, result, and sources of error.
- Notebook discipline: dated entries, corrected mistakes shown clearly, and neat diagrams.
- Measurement and error: reading instruments to the correct precision, recording units, and identifying systematic versus random error.
- Project work: clear objective, method, data, analysis and conclusion, with sources acknowledged.
- Continuous assessment: attendance, participation, and timely submission.
Traps
- Writing a report without a stated aim or theory.
- Recording data without units or with inconsistent decimal places.
- Copying a project from a peer; originality is assessed.
- Leaving the notebook incomplete and filling it in at the end of the year.
- Ignoring the instruction to discuss sources of error.
Worked rule of thumb
For any practical, record raw readings during the experiment, never afterwards. Then apply the chain: raw data → average → calculation with units → comparison with expected value → error discussion. Example: three readings of a length 4.2, 4.3 and 4.2 cm give an average of 4.23 cm, reported to the instrument's precision, followed by a note on parallax error.