Posts Tagged ‘assessment’

Peer assessment of lab work

Wednesday, February 23rd, 2011

Spectacle chandelier by seq on flickr

We’ll be doing an experiment to compare the properties of ionic and covalent substances, and to then relate these properties to the types of bonding in them.  Here’s the instruction sheet: LAB – How are the properties of substances explained by theories of bonding and structure

Once you have written up the lab report, you will peer assess it using these rubrics.  FINALRubric DCP   FINAL Rubric CE  The first one (DCP) looks at your data collection.  The second one (CE) looks at your conclusion and evaluations.  A few of your classmates can give you feedback, which you can then act on before you submit the final version to me.

Upcoming assessment

Monday, October 12th, 2009



free help by tadson on flickr

free help by tadson on flickr

We will be having a test next week. For SL that means topics 6.3 and 6.4 – Disease, immunity and gas exchange.  For HL that means 6.3 and 11.1 – Disease and immunity.  Topic 11 syllabus guide here: Topic 11


B Block – THURSDAY 22nd OCTOBER


F Block – WEDNESDAY 21st OCTOBER


G Block – THURSDAY 22nd OCTOBER


Come and see me in tutorial time if you need help with any of this.


It’s testing time!

Friday, September 25th, 2009

You’ve all been asking, pleading, begging for another assessment.  Well, the good news is, you have one coming up next week – YEAH! 

Block H students will take it on THURSDAY 1st OCTOBER. 

Block D students will take it on FRIDAY 2nd OCTOBER.

Look through your notes from class, and go back through all the blog posts on atomic structure, the Periodic Table, electron configuration, metals vs non-metals, ionic and covalent bonding, Lewis structures, writing formulae, balancing equations et al.

COME AND SEE ME DURING TUTORIALS if you need help.

Transport system

Tuesday, September 22nd, 2009

Here is a really useful presentation, thanks to Mr Hobbins. How your Heart beats

Please also continue to work on your heart rate labs.  See the rubric below.  Due on OCTOBER 1st.

Listed below are some of the finer points that are often the difference between a ‘c’ and a ’p’ grade in an aspect. You should be able to answer ‘yes’ to each of the questions.

Planning A Is your research question sufficiently focused?Have you made a quantitative prediction in your hypothesis?Have you fully explained your hypothesis?Are your variables clearly shown i.e. not just one word?
Planning B Have you included the volumes and concentrations of solutions used, sizes of glassware etc?Are all of your controlled variables covered?Do you plan to do enough runs?Have you included a clearly labeled diagram?
Data Collection Is raw data neatly presented in a table?Does the table have an uncertainty and unit value in the header row?Have you made qualitative observations too e.g colour changes?Are your significant figures/decimal places consistent?
Data Processing and Presentation If you have plotted a graph, have you labeled axes and drawn a line of best fit to extract more information?Have you processed the uncertainty due to the equipment and shown this in your final answer (HL)?Have you commented on the uncertainties of the equipment and how significant they might be in affecting the reliability of your result (SL)?
Conclusion and Evaluation Have you compared the result with literature data?Does the percentage uncertainty cover your percentage error (HL)?Have you identified flaws in the technique and suggested ways to improve them (N.B. ‘I ran out of time’ is not suitable)?
General Is every detail of the write up your own work?Have you written in the passive voice?Have you referenced any sources?

 

DP Biology Lab Report Format

 

Please follow this format for each practical investigation – it will help us see that you have covered all of the aspects that are needed to be marked ‘Complete’.

1. Research question or aim:  Clear and to the point. State the dependent and independent variables and species name [e.g. Apis mellifera] in the research question

2. Hypothesis: Predictions with reasons based on scientific theory or published data. What do you think is going to happen with reasons based on scientific theory or published data. This is then stated as a prediction as what you think will happen in your experiment. IF (independent variable) THEN (dependent variable) BECAUSE..”

3. Variables: Independent, Dependent, Controlled (a list here is enough).

4. List apparatus and materials (with amounts/sizes/quantities).

5. Method to control variables: Keep at least 3 factors constant to reduce experimental error.  Give a reason for each one.

6. Method for collection of raw data: What are you changing? How? What are you measuring? How? What units? How many data points will you produce? State them clearly. What will you do with the data collected?

7. Large, clear diagram or photo of set-up, clearly labeled.

8. Collect and record raw data, giving units and uncertainties.  e.g. using a mm ruler, error is +/- 1mm

9. Present the raw data in a large, clear, self-designed table. Give an informative title.  i.e. – ‘table of results’ is not descriptive enough.

10. Process raw data: Choose an appropriate graph/ chart/ statistical test.  Perform it correctly, giving a worked example for all calculations used.

11. Present processed data: Make table or graph large, clear and well labeled.  Include units and an informative title.

12. Draw conclusions: What do your results tell you?  What does this mean? Explain using scientific theory.  Does it agree with your hypothesis?  Compare collected data with published (literature) data if possible. Reference it appropriately.

13. Evaluate procedures and results: Identify (min 3) weaknesses, limitations and errors in the results and the method.

14. Improve the investigation: Suggest realistic methods to improve on each of the weaknesses mentioned above.

15. References.

New Glogster homework!

Thursday, September 10th, 2009
Hydrogen from wikimedia commons

Hydrogen from wikimedia commons

Hooray!  You did such a good job on the first glogster assignment, your teachers have decided to give you another one.

Each student will be given ONE element from the periodic table.  Your task is to produce a glogster poster with information about that element.  The kinds of things to include are:

atomic structure, mass number, uses, reactivity, state, colour, etc

Remember to include pictures and images as well as text.

We will put up your posters in the shape of the periodic table outside room 1090/1091.  We’ll use the same rubric as last time to assess this.

Testing, testing, 1 2 3

Thursday, September 10th, 2009

REMINDER

Block B will have their test on Topics 6.1 Digestion and 6.2 Transport System on THURSDAY 17th SEPTEMBERBlock F will have theirs on WEDNESDAY 16th SEPTEMBER.  Usual format – part multiple choice, part short answers – all from past IB papers.

COME TO TUTORIALS if you need help with anything.

Checklist for heart rate lab

Thursday, September 10th, 2009

Use this checklist, thanks to Mr. Hobbins, to help you with your heart rate lab.

Listed below are some of the finer points that are often the difference between a ‘c’ and a ’p’ grade in an aspect. You should be able to answer ‘yes’ to each of the questions.

Planning A Is your research question sufficiently focused?

Have you made a quantitative prediction in your hypothesis?

Have you fully explained your hypothesis?

Are your variables clearly shown i.e. not just one word?

Planning B

Have you included the volumes and concentrations of solutions used, sizes of glassware etc?

Are all of your controlled variables covered?

Do you plan to do enough runs?

Have you included a clearly labeled diagram?

Data Collection Is raw data neatly presented in a table?

Does the table have an uncertainty and unit value in the header row?

Have you made qualitative observations too e.g colour changes?

Are your significant figures/decimal places consistent?

Data Processing and Presentation If you have plotted a graph, have you labeled axes and drawn a line of best fit to extract more information?

Have you processed the uncertainty due to the equipment and shown this in your final answer (HL)?

Have you commented on the uncertainties of the equipment and how significant they might be in affecting the reliability of your result (SL)?

Conclusion and Evaluation Have you compared the result with literature data?

Does the percentage uncertainty cover your percentage error (HL)?

Have you identified flaws in the technique and suggested ways to improve them (N.B. ‘I ran out of time’ is not suitable)?

General Is every detail of the write up your own work?

Have you written in the passive voice?

Have you referenced any sources?

DP Biology Lab Report Format

Please follow this format for each practical investigation – it will help us see that you have covered all of the aspects that are needed to be marked ‘Complete’.

1. Research question or aim:  Clear and to the point. State the dependent and independent variables and species name [e.g. Apis mellifera] in the research question

2. Hypothesis: Predictions with reasons based on scientific theory or published data. What do you think is going to happen with reasons based on scientific theory or published data. This is then stated as a prediction as what you think will happen in your experiment. IF (independent variable) THEN (dependent variable) BECAUSE..”

3. Variables: Independent, Dependent, Controlled (a list here is enough).

4. List apparatus and materials (with amounts/sizes/quantities).

5. Method to control variables: Keep at least 3 factors constant to reduce experimental error.  Give a reason for each one.

6. Method for collection of raw data: What are you changing? How? What are you measuring? How? What units? How many data points will you produce? State them clearly. What will you do with the data collected?

7. Large, clear diagram or photo of set-up, clearly labeled.

8. Collect and record raw data, giving units and uncertainties.  e.g. using a mm ruler, error is +/- 1mm

9. Present the raw data in a large, clear, self-designed table. Give an informative title.  i.e. – ‘table of results’ is not descriptive enough.

10. Process raw data: Choose an appropriate graph/ chart/ statistical test.  Perform it correctly, giving a worked example for all calculations used.

11. Present processed data: Make table or graph large, clear and well labeled.  Include units and an informative title.

12. Draw conclusions: What do your results tell you?  What does this mean? Explain using scientific theory.  Does it agree with your hypothesis?  Compare collected data with published (literature) data if possible. Reference it appropriately.

13. Evaluate procedures and results: Identify (min 3) weaknesses, limitations and errors in the results and the method.

14. Improve the investigation: Suggest realistic methods to improve on each of the weaknesses mentioned above.

15. References.

Digestion assessment

Tuesday, September 1st, 2009

Describe the route taken by a ham, cheese and lettuce sandwich through the human digestive system, explaining what happens to each part of the sandwich as it passes through each region of the digestive tract.                  [20 marks]

 Complete and correct route given               [4]

Digestion of bread                                       [4]

Digestion of ham                                         [4]

Digestion of cheese                                     [4]

Digestion of lettuce                                     [2]

Bibliography in MLA format                          [2]

You will have class time on Tuesday 1st September for this, and must submit it no later than Thursday 3rd September.  Here is a link you might find useful.

Assessment coming up!

Thursday, August 20th, 2009

During the first week of SEPTEMBER you can expect to be given an assessment on what we have covered so far in G9 Integrated Science.  That means all the stuff on variables, units, significant figures, errors, science apparatus.  We’ll talk more in class about this but here is a link to some powerpoints you might find useful.   Click through the first few introductory slides to get to the good stuff 🙂

Variables     Measurement      Errors – click on “How science works – Errors”