Biology SBA Guidelines Drawing: Don’ts – Drawing - No shading Do’s – Drawing - let drawings be at least half page - ensure for assessment there are drawings of flower, fruit, seed and bone Label Lines - no arrow heads - no crossing of label lines - no dots or dashes Label Lines - as far as possible, have label lines and labels positioned at right side of drawing - let all label lines end at the same vertical plane - let label lines be drawn parallel to the page top/bottom - ensure label lines end on part being named Labels and Title - do not join letters of words for label or title Labels and Title - use caps for title - position title under drawing - underline title - include specimen, view, magnification - state actual length and width of specimen - state actual name of specimen i.e. goat cervical vertebrae, mango leaf, hibiscus flower - place annotations immediately after label preceded by a hyphen - in title, use word “drawing” and not “diagram” - use key to explain symbols e.g., stippling/cross hatching - place x in front of magnification - let magnification be to 1 decimal place and without units Use Pencil for all Drawing activities – drawing, label lines, labels Planning and Designing Let the hypothesis and method not be from text or theory, but be novel/new Use instructional writing for method Expected results should be related to Hypothesis and Aim Limitations are to be points that are beyond human control Planning and Designing (PD) (a) Ask questions: how, what, which, why or where. (ask scientific questions). Observation: Growth of plants are affected by their environment. Example: Will plants that are grown using organic fertilizers grow taller than those that are grown using inorganic fertilizers? (b) Construct a hypothesis; the hypothesis must be clear, concise and testable. Example: Plants grown using organic fertilizer will grow taller than those grown using inorganic fertilizer. (c) Design an experiment to test the hypothesis. Experimental reports must include the following: (i) problem statement; (ii) an appropriate aim related to the hypothesis; (iii) list of materials and apparatus to be used; (iv) observations to be made or measurements to be taken; (v) precautions to be taken; (vi) method of controlling variables; (vii) clear and concise step by step procedure; (viii) display of expected results; (ix) use of results; (x) possible limitations. Analysis and Interpretation Background information should be written in the “Discussion,” (not as a separate theory section) Background information must be related to the experiment as it is related theory ton which the investigation is based i.e what was known before setting up the investigation and will be used to interpret results Discussion should be an analysis or interpretation of the results. Discussion must not simply answer posed questions for A & I a. questions may be given to guide students but must be written in paragraph format b. questions ought not to be shown in lab write-up Explanations: Observations or results must be fully explained Conclusion must be based on the aim and hypothesis. The control (if included) should be used for arriving at the conclusion. (It is a brief answer to the aim) Where appropriate, patterns or relationship should be clearly stated. Limitation(s) ought to be included as very important to labs. There are uncontrolled variables and sources which may have affected the results. Source(s) or error and Precaution(s) are also encouraged, knowing that these are both different to each other and to limitation(s) Analysis and Interpretation Student’s ability to: (a) identify patterns and trends, cause and effect, stability and change ; (b) make accurate calculations; (c) identify limitations and sources of error, make a conclusion to either support or refute the hypothesis, compare actual results with expected results based on background/theoretical knowledge if they are different; (d) suggest alternative methods or modification to existing methods; (e) analysing and interpreting results and observations and making conclusions. Observation, Recording and Reporting All components of ORR labs ought to be shown in every lab marked for that skill Correct format is: - Tile - Aim - Apparatus - Materials - Method - Results/Observations - Discussion (including limitation(s) at the end - Conclusion LANGUAGE: Must be concise and clearly written in the past tense and Standard English. Passive voice/ past tense No more than 2 grammatical errors are acceptable AIM: Must state clearly what the student set out to do or show APPARATUS AND MATERIALS: Must include all materials and /or apparatus used in the activity METHOD clearly described in a logical sequence of task and include neatly done drawings or diagrams when appropriate. OBSERVATIONS/ RESULTS: Should include appropriately chosen and well executed method of presenting observations / data, (for example, lists, description, tables, graphs, histograms, diagram, etc.) When using tables (i) Title above in all CAPS, and underlined (ii) Table must be closed (iii) Use appropriate table headings When using graphs (i) Title below in all CAPS, and underlined (ii) Use a key if necessary to explain symbols if more than one dependent variable is being plotted. (iii) Axes labeled in CAPS with units stated (iv) correct scales, correct plotting, smooth curves/best fit lines For results (i) show necessary calculations (ii) show units DISCUSSION: Should include explanations for observation and a conclusion Reflection: How is the lab experiment is relevant to your life? (Note refection added to AI, ORR and PD Skills) For PD skills how its relevant to Belize.