8/3/2019 Lacsap's Fractions Checklist for Students Nov 2011
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Math SL Portfolio Tips and Reminders Checklist
Notation and Terminology
Check for the following:
I did not use calculator notation. (I didnt include things like
x^2 for 2x or En for En)
I used appropriate mathematical vocabulary. I did not use the
same variable to represent more than one quantity
Communication
Check for the following:
The reader will not need to refer to the list of questions in
order to understand my work. My responses are not numbered. All
graphs are labeled Each graph has a title, labeled axes, and
appropriate scale. My graphs and tables are within the body of my
work. They are not separate or in an appendix. I have explained
whyI made the choices I did when going through the task. I did not
include key stroke sequences, e.g. I pressed the 2nd key, then
TRACE My tables do not straddle pages. My equations do not straddle
lines. My tables are labeled well, including my variable
definitions in each column.
Mathematical Process (Type 1)
Check for the following:
I explicitly defined variables and parameters the first time I
used them, even if they werealready defined in the portfolio
handout.
I stated any constraints/limits on the values of the variables
(e.g., time cannot be negative). I did not state conjectures/ideas
as facts. I used proper mathematical strategies to produce my data.
I organized my data in a table, chart, or other useful
representation. I tested my general statement by using more data.
After testing my general statement with known data, I considered
further examples in order
to further test and apply my general statement.
Results (Type 1)
Check for the following:
My general statement is clear, concise, and specific. I used
appropriate mathematical terminology in my general statement. I
discussed the reasonableness of my results.
I discussed the limitations of my general statement. I used an
informal proof (not a specific example) to justify my results.
8/3/2019 Lacsap's Fractions Checklist for Students Nov 2011
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Use of Technology
Check for the following:
I used technology to illustratemy points and ideas. I didnt just
stick in a graph. Each graph or table (or other piece of tech.) is
accompanied by explanations and my ideas. I did not include too
many graphs on the same axes my graphs are easy to read. I used
technology in each stage of my IA: the data analysis, development
of the general statement and
analysis of the scope/limitations.
Quality of Work
Check for the following:
I went over my work thoroughly to check for typos or unclear
parts. I did my best to express a deep understanding of this work
and its relevance.
In addition to the above items, you may find the following
recommendations helpful for Lacsaps Fractions:
1) After finding each general statement, did you test or confirm
it with known data? Remember, if
you used rows 1 5 to produce your general statement, trying the
8th row is not a test. It is
considering a further example.
2) Scope/limitations: Are there cases where your formula
wont work?
will work, but wouldnt be used?
3) Make sure to include enough explanations/diagrams in your
gathering of data and in your
explanations about how you produced the general statement.
Remember to state the obvious.
4) The rubric (Criterion D, 5th step) mentions that the student
should give a correct, informal
justification of the general statement. This is not explicitly
asked for in the instructions, but you
need to include an informal justification in order to earn 5
marks in Criterion D. This could
essentially be done through the Explain how you arrived at the
general statement part, if your
explanations are good and can be generalized. Perhaps this is
why the writers of the task chose to
put that part as the last instruction on the page.
5) Make sure your testing includes some known data, but also
that you test the validity of the general
statement by considering further examples, as per the rubric
(Criterion C, 5th step). This means
you will want to try out your statement on a new example (one
that could also be verified through a
diagram or other method) in order to test it thoroughly.
