103 Laboratory ten marking rubric

1. [d] Data tables content [max 15]
+1per row reflection data (per coordinate pair)
+1per row refraction data (per coordinate pair)
2. [t] Reflection table format and layout
3Clear, concise, well thought out, informative
2Missing borders or other minor format inconsistencies
1Incomplete, runs off edges of page, lacks minimal margins
3. [g] Reflection graph format
3xy scattergraph, correct axis labels
2Missing a label, units, or other element
1wrong graph type or multiple missing elements
4. [t] Refraction table format and layout
3Clear, concise, well thought out, informative
2Missing borders or other minor format inconsistencies
1Incomplete, runs off edges of page, lacks minimal margins
5. [g] Refraction graph format
3xy scattergraph, correct axis labels
2Missing a label, units, or other element
1wrong graph type or multiple missing elements
6. [a] Data analysis: mathematical and/or statistical analysis. [8, but more typically 6]
+1reflection slope calculated
+1reflection intercept calculated
+1reflection percentage difference from 1.00 calculated
+1reflection slope interpreted and explained
+1refraction slope calculated
+1refraction intercept calculated
+1refraction percentage difference from 1.33 calculated
+1refraction slope interpreted and explained

The following are also marked. Refer to the generic rubric for details.

7. [c] Conclusions – Content
8. [f] Format
[G] Grammar and Syntax [-2 if conclusion too short to judge grammar properly]
[V] Vocabulary [-2 if conclusion too short - taken as evidence of vocabulary limitations]
[O] Organization
[C] Cohesion [0 if conclusion too short to judge cohesion]

Instructional note: Groups of two to three are recommended and work well for this laboratory. At this point in the term some students become overly reliant on one person gathering the data and then copying the data from that one person, even tossing out their own measurements in favor of those from another group. If this issue develops, then one can assign uniqueness of data points as appropriate. The refraction data is useful for detecting this sort of activity - the position of the image as seen by different observers is often different for each observer. An example is provided below.

1. [u] Uniqueness [max 5, typically 3]
5Only one person reported the refraction data
4Two people reported the same refraction data
3Three people reported the same refraction data
2Four people reported the same refraction data
1Five or more people reported the same refraction data