Problems and other fun Tasks
This page contains the daily tasks for students in Dr. Monks's
Math 484 (The Art of Problem Solving) course, Fall term 2010.
Last Training Workout (#26) - Thursday, Dec 2, 2010
- Hand in your answers to the eight question set
I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer
Form. If you want to take it under contest conditions time
yourself 40 minutes with no calculator.
- Putnam Practice! Hand in solutions to Zeitz
4.3.13, 4.3.19 (using generating function methods and Maple or a TI-89 to
compute the correct coefficient) and the following
question.
- Define the Fibonacci sequence by \(F_0=F_1=1\) and for all \(n>1\),
\(F_n=F_{n-1}+F_{n-2}\). Use the method of Generating Functions shown
in lecture to derive the closed formula
\[F_n=\frac{1}{\sqrt{5}}\left(\alpha^{n+1}-\beta^{n+1}\right)\]
where \(\alpha=\frac{1+\sqrt{5}}{2}\) and \(\beta=\frac{1-\sqrt{5}}{2}\)
Write up your proofs as you would for the Putnam. Write these
on ordinary paper. Do not write more than one solution on a single
sheet of paper. Staple all of the pages together, but do not staple
it to the answer sheet for the eight question problem set
above.
- Problem Training and Must-Know Notebooks
Bring these to class with you on Thursday. I will collect them and grade
them while you are practicing Putnam problems, and then hand them back to
you before you leave class.
- Training Log Spreadsheets
You should send me your last training log spreadsheet before class
on Thursday, Dec 9. You should include your hours for the Putnam
this Saturday. Note that there is no class on Tuesday, Dec 7, and that
class on Thursday Dec 9 starts at 5:15 pm, not 6:00 pm.
- PUTNAM!!!
The 2010 Putnam exam will be held this Saturday, Dec 4, from 10am-1pm
and from 3pm-6pm with a two hour break for lunch from 1pm-3pm. The contest
will be held in Hyland 102. You should arrive at 9:30am. You should bring
pencils, pens, erasers and a watch. Nothing else. Cell phones and music
players are prohibited. We will provide you with scrap paper. This is Part
I of your final exam in the course. I will explain the details of this in
class on Thursday.
Training Workout #25 - Tuesday, Nov 30, 2010
- Hand in your answers to the eight question set
I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer
Form. If you want to take it under contest conditions time
yourself 40 minutes with no calculator.
- Read Section 4.3 in Zeitz.
As usual, read it with paper and a pencil in hand,
and try the examples before you read his solutions.
Note that this is the last section we will cover in Zeitz in this course.
The remainder of the textbook is essentially his Playbook of problem solving
facts and examples from various specific branches of mathematics. This is
excellent material to go through on your own slowly in your spare time after
the course is over. So carry a copy of Zeitz around with you at all times,
and continue your training for the rest of your lives!
- Putnam Practice! Hand in solutions to the
following questions.
- Show that
\[\sum_{i=1}^n (-1)^{n+i}{n \choose i}{{in} \choose n} = n^n\]
- A white ball has finitely many disk-shaped black regions
(closed) painted on its surface. Each black region has area less
than half of the surface area of the sphere. No two black regions
touch or overlap. Determine, with proof, whether there is always a
diameter of the ball with two white endpoints.
- Show that, if \(n\neq 2\) is a positive integer, that there
are \(n\) triangular numbers \(a_1,a_2,\ldots,a_n\) such that
\(\displaystyle \sum_{i=1}^n \frac{1}{a_i} = 1\) (recall that the
\(k^{th}\) triangular number is \(\frac{k(k+1)}{2}\)).
Write up your proofs as you would for the Putnam. Write these
on ordinary paper. Do not write more than one solution on a single
sheet of paper. Staple all of the pages together, but do not staple
it to the answer sheet for the eight question problem set
above.
Training Workout #24 - Tuesday, Nov 23, 2010
- USAMTS!
Time is up! Hand in your solutions to USAMTS Round One.
Write up your proofs as you would for the Putnam. Write these
on ordinary paper. Do not write more than one solution on a single
sheet of paper. Staple all of the pages together, but do not staple
it to the answer sheet for eight question problem set
below.
This is the major training activity of the entire semester and will
count heavily toward your final grade. Neatness counts. While it is
not required if your proof is correct and easy to read, typing
your solutions in LyX or making your diagrams geogebra may help
your grade if your solutions are not correct.
- Hand in your answers to the eight question set
I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer
Form. If you want to take it under contest conditions time
yourself 40 minutes with no calculator.
- See your name in print!!
Pi Mu Epsilon is a math journal for undergraduates that has
a problem section in each issue that undergraduates can solve
and submit their solutions to for publication in a future issue.
The latest issue has
posted its problems here. This is an optional Training Workout task,
but if you are interested in trying your hand at a problem and submitting
a solution, I will be glad to look at your solution before you submit it
to offer feedback (it's not like a contest, so I can tell you if you are
right or not). Then you can bring fame to yourself and the University of
Scranton Problem Solvers!! Go Fighting Gnomes!!
Training Workout #23 - Thursday, Nov 18,
2010
- Hand in your answers to the eight question set
I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer
Form. If you want to take it under contest conditions time
yourself 40 minutes with no calculator.
- Putnam Practice! Hand in solutions to
Zeitz 4.1.10 and 4.1.17.
Write up your proofs as you would for the Putnam. Write these
on ordinary paper. Do not write more than one solution on a single
sheet of paper. Staple all of the pages together, but do not staple
it to the answer sheet for the ten and eight question problem set
above.
- USAMTS!
Continue working on USAMTS! (Time is running out!)
Training Workout #22 - Tuesday, Nov 16,
2010
- Hand in your answers to the ten question set
I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer
Form. If you want to take it under contest conditions time
yourself 13 minutes and 20 seconds with no calculator.
- Hand in your answers to the eight question
set I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the same Assignment Answer Form as the ten question set
above but write your answers to these eight questions in
the second column so that problem number \(n\) on the eight problem
set is written in the answer blank numbered \(n+10\) on the answer
sheet. If you want to take it under contest conditions time
yourself 40 minutes with no calculator.
- Putnam Practice! Hand in solutions to
Zeitz 1.3.13, 3.1.27, 3.2.9, 3.3.24, 3.4.39.
Write up your proofs as you would for the Putnam. Write these
on ordinary paper. Do not write more than one solution on a single
sheet of paper. Staple all of the pages together, but do not staple
it to the answer sheet for the ten and eight question problem set
above.
- USAMTS!
Continue working on USAMTS! (Time is running out!)
Training Workout #21 - Tuesday, Nov
9, 2010
- Putnam Practice! Hand in solutions to
Zeitz 3.4.19, 3.4.20, 3.4.27, 3.4.32, and the five question set I
gave you in class.
Write up your proofs as you would for the Putnam. Write these
on ordinary paper. Do not write more than one solution on a single
sheet of paper. Staple all of the pages together, but do not staple
it to the answer sheet for the eight question problem set
above.
- Read Section 4.1 in Zeitz.
As usual, read it with paper and a pencil in hand,
and try the examples before you read his solutions.
- Home Grown Contest - (for Bozo's
only)
If you did not already send me two questions for the Home Grown
Contest as assigned in Training Workout #19, send them to me asap
to avoid another F. Follow the instructions Training Workout #19.
If you already sent me them in LyX format, you don't have to do
anything else, but you may improve and resubmit your questions if
you wish.
- USAMTS!
Continue working on USAMTS! (You never know when someone might ask
you about it.)
Training Workout #20 - Thursday, Nov
4, 2010
- Hand in your answers to the eight question
set I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer
Form. If you want to take it under contest conditions time
yourself 40 minutes with no calculator.
- USAMTS!
Continue working on USAMTS! (You never know when someone might ask
you about it.)
- Putnam Practice! Hand in solutions to the
following questions.
- Show that for every collection of nine lattice points
(points whose coordinates are all integers) in a three-dimensional
Euclidean space there is a lattice point on the interior of at
least of the line segments joining two of these points.
- Show that every positive integer is a sum of one or more
numbers of the form \(2^r3^s\) , where \(r\) and \(s\) are
nonnegative integers and no summand divides another. (For example,
\(23 = 9 + 8 + 6\).)
Write up your proofs as you would for the Putnam. Write these
on ordinary paper. Do not write more than one solution on a single
sheet of paper. Staple all of the pages together, but do not staple
it to the answer sheet for the eight question problem set
above.
Training Workout #19 - Tuesday, Nov
2, 2010
- Read Section 4.2 in Zeitz.
As usual, read it with paper and a pencil in hand,
and try the examples before you read his solutions.
- Putnam Practice! Hand in solutions to
Zeitz 3.3.16, 3.3.19, 3.3.22, 4.2.22, 4.2.23, and
4.2.40.
Write up your proofs as you would for the Putnam. Write these on
ordinary paper. Do not write more than one solution on a single
sheet of paper. Staple all of the pages together. Mark the Training
Workout Number in the upper right corner of the first page.
- Home Grown Contest!
Go through either my MATHCOUNTS Playbook or my High School Playbook and select at
least one fact that you didn't know before [Note: You can use any
fact from the MATHCOUNTS Playbook, but only use facts from the High
School playbook that are marked with a star symbol.] Then make up
two problems, including one that uses the fact you selected (you
can pick two facts and make two problems if you like, or use more
than one fact in a single problem, but don't make two problems that
use the same fact).
Your first problem should be an easy one, perhaps a one to three
minute problem, similar to MATHCOUNTS or Problems #1-10 on an AMC.
Your second problem should be more challenging, perhaps three to
twelve minutes, similar to problems #15-25 on AMC. It doesn't
matter if the hard problem or the easy problem is the one that uses
the Playbook fact. You should know how to answer both of your own
problems and be ready to explain their solution to the class. The
problems should be short-answer format, not multiple-choice
(despite what I said in class) and not proof based, i.e. your
answers to your questions should be able to fit in the blank on one
of our Assignment Answer
Forms that you often use for homework.
I will put all of your problems together in random order to form a
contest, which we will then take in class, so everyone will get to
do everyone else's problem (including the two problems they
themselves made up, so everyone should get at least two right!).
The goal is to make good problems. They should have
all of the characteristics of a good problem that we have discussed
in the course... interesting, enjoyable, addictive, entertaining,
surprising, astonishing, etc. If they have a messy obvious
solution and also a clever solution that uses some Playbook fact,
that is great. Messy annoying problems that nobody including you
wants to work out will be subject to the wrath and scorn of your
peers (author's identities WILL be revealed when you explain your
solutions to the class!). Brilliant enjoyable problems may
similarly generate spontaneous laughter and applause!
In order to facilitate my compiling these questions, I ask that you
send the two questions to me by email so I can copy and paste your
questions into a LyX document. If your question uses math symbols
and notation which cannot be typed in email, then I ask that you
send it to me directly in LyX file format. LyX is a free math word
processor based on LaTeX, and can be downloaded and installed from
here. You can email me your two
questions as an attachment in .lyx file format (or in the body of
the email message if they don't contain any math formatting) any
time before class on Nov 2. The subject line of the email message
must be "Home Grown Contest - lastname" (without the double quotes
and with "lastname" replaced by your last name). The name of your
.lyx file attachment should be of the form yourlastname.lyx
In every case you should send me:
- Your two questions.
- Your answers to the two questions.
- The playbook fact(s) that you used.
- Your solutions to the two questions.
- USAMTS!
Continue working on USAMTS! (You never know when someone might ask
you about it.)
Training Workout #18 - Thursday, Oct 27,
2010
- Hand in your answers to the eight question
set I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer
Form. If you want to take it under contest conditions time
yourself 40 minutes with no calculator.
- USAMTS!
Continue working on USAMTS! (You never know when someone might ask
you about it.)
- Putnam Practice! Hand in solutions to Zeitz
3.3.18 and the following question.
- Prove that there exist integers \(a, b, c\) not all zero and
each of absolute value less than one million such that
\[\left|a+b\sqrt{2}+c\sqrt{3}\right|<10^{-11}\]
Write up your proofs as you would for the Putnam. Write these on
ordinary paper. Do not write more than one solution on a single sheet
of paper. Staple all of the pages together, but do not staple it to
the answer sheet for the thirty question problem set above.
Training Workout #17 - Tuesday, Oct 26,
2010
- Hand in your answers to the thirty question
set I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer
Form. If you want to take it under contest conditions time
yourself 90 minutes. You can use a calculator, but it isn't
needed.
- USAMTS!
Continue working on USAMTS! (You never know when someone might ask
you about it.)
- Read Section 3.4 in Zeitz.
As usual, read it with paper and a pencil in hand,
and try the examples before you read his solutions.
- Putnam Practice! Hand in solutions to Zeitz
3.2.8, 3.2.10, 3.2.14, 3.2.15, and the following
question.
(Putnam) Find the minimum value of
\[\frac{(x+1/x)^6-(x^6+1/x^6)-2}{(x+1/x)^3+(x^3+1/x^3)}\] for
\(x>0\)
Write up your proofs as you would for the Putnam. Write these on
ordinary paper. Do not write more than one solution on a single
sheet of paper. Staple all of the pages together, but do not staple
it to the answer sheet for the thirty question problem set
above.
Training Workout #16 - Thursday, Oct 21,
2010
- Hand in your answers to the eight question
set I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the new improved Assignment Answer Form. If you want
to take it under contest conditions time yourself 40 minutes with
no calculator.
- USAMTS!
Continue working on USAMTS! (You never know when someone might ask
you about it.)
- Read Section 3.3 in Zeitz.
As usual, read it with paper and a pencil in hand,
and try the examples before you read his solutions.
- Putnam Practice! Hand in solutions to Zeitz
3.3.25
Write up a proof as you would for the Putnam. Write these on
ordinary paper. If it's more than one page, staple all of the pages
together, but do not staple it to the answer sheet for the eight
question problem set above.
Training Workout #15 - Tuesday, Oct 19,
2010
- Hand in your answers to the fifty question
set I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the new improved Assignment Answer Form. If you want
to take it under contest conditions time yourself 120 minutes with
no calculator. I don't think they had calculators in 1950.
- USAMTS!
Continue working on USAMTS! (You never know when someone might ask
you about it.)
- Read Section 3.2 in Zeitz.
As usual, read it with paper and a pencil in hand,
and try the examples before you read his solutions.
Training Workout #14 - Thursday, Oct 14,
2010
- USAMTS!!!
- Print the USAMTS Year
22, Round 1 problems!
- Read all of the problems now! That will load them into
your brain and allow ideas to simmer to the surface.
- Start working on them over break. Don't put these off until the
last minute. It will be too late by then.
- Record your progress in your logs as you go. I will expect that
you have made substantial progress by the next time we meet and
will ask you about it.
- Be patient! Don't give up easily!!
This will be a major consideration in determining your grade
in this course, similar to a take-home midterm exam (except that you
have six weeks to work on it!) You can use reference books, online
math references (that don't involve asking another human being),
calculators, Maple, spreadsheets, Geogebra, mechanical models,
rulers, protractors, etc. to solve these problems. The only thing you
cannot do is discuss the problem with anyone other than me or each
other. You can discuss the problems and work with other members of
the class as long as for any such collaborative efforts (a) each
student writes their own solution and (b) on each problem that you
collaborate, mark the name of the people you worked with, and what
percentage of the solution was done by you (you should discuss this
with your collaborators so the totals add up to 100%). You can also
ask me questions to clarify the problem statement, explain Playbook
facts, etc.
These five problems will be due on November
22. Note that unless you are still in high school, you should
hand these solutions in to me, not submit them to the USAMTS
competition. Do not write more than one solution on a single sheet of
paper. Neatness counts for this training workout.
Send me an email for each successful solution so I can share in
the excitement!
Training Workout #13 - Thursday, Oct 7,
2010
- Hand in your answers to the eight question
set I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer Form. This
is a high school level competition. If you want to take it under
contest conditions time yourself 40 minutes with no
calculator.
- Putnam Practice! Hand in solutions to Zeitz
1.3.10
Write up a proof as you would for the Putnam. Write these on
ordinary paper. If it's more than one page, staple all of the pages
together, but do not staple it to the answer sheet for the eight
question problem set above. Do not put more than one problem on the
same page.
Training Workout #12 - Tuesday, Oct 5,
2010
- Hand in your answers to the eight question
set I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer Form. This
is a high school level competition. If you want to take it under
contest conditions time yourself 40 minutes with no
calculator.
- Putnam Practice! Hand in solutions to Zeitz
3.1.16, 3.1.17, 3.1.18*, 3.1.20, 3.1.26
Write up a proof as you would for the Putnam. Write these on
ordinary paper. If it's more than one page, staple all of the pages
together, but do not staple it to the answer sheet for the eight
question problem set above. Do not put more than one problem on the
same page.
*Note that 3.1.18 is not really a problem in our sense of the word,
but rather it is a series of questions that are intended to teach
you about the theory of symmetric polynomials through hands-on
investigation. For part (h) the term cyclic sum is defined
on page 71.
Training Workout #11 - Thursday, Sept 30,
2010
- Hand in your answers to the eight question
set I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer Form. This
is a high school level competition. If you want to take it under
contest conditions time yourself 40 minutes with no
calculator.
- Putnam Practice! Hand in a solution to Zeitz
1.3.14.
Write up a proof as you would for the Putnam. Write these on
ordinary paper. If it's more than one page, staple all of the pages
together, but do not staple it to the answer sheet for the eight
question problem set above. Do not put more than one problem on the
same page.
Training Workout #10 - Tuesday, Sept 27,
2010
- Hand in your answers to the ten question set
I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer Form. This
is a high school level competition. If you want to take it under
contest conditions time yourself one hour with no calculator.
- Putnam Practice! Hand in a solution to any
three of the following problems from Zeitz 1.3.16, 2.2.13, 2.2.16,
and 2.3.32.
Write up a proof as you would for the Putnam. Write these on
ordinary paper. If it's more than one page, staple all of the pages
together, but do not staple it to the answer sheet for the ten
question problem set above. Do not put more than one problem on the
same page.
- Register for Math 320 (Chaos and Fractals)
for Spring 2011!
OK, that's not really part of the assigned Training Workout,
it's just a shameless plug for y'all to register for my course. It
meets from 4:00-5:15pm in our same room on Tuesdays and Thursdays.
I have a 6:00pm class in the same room, so unfortunately we won't
be able to run overtime more than 45 minutes. :( But its a great
class anyway, and you are great students, so it's a perfect match!
Sign up now! Space is limited!
Training Workout #9 - Thursday, Sept 23,
2010
- Hand in your answers to the eight question
set I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer Form. This
is a high school level competition. If you want to take it under
contest conditions time yourself 40 minutes with no calculator.
Questions 1-3 are worth 1 point each, questions 4-6 are worth 2
points each, and questions 7-8 are worth 3 points each.
- Putnam Practice! Hand in a solution to Zeitz
2.3.22.
Write up a proof as you would for the Putnam. Write these on
ordinary paper. If it's more than one page, staple all of the pages
together, but do not staple it to the answer sheet for the eight
question problem set above.
There is a wide range of difficulty levels among these problems.
Try to force yourself to work on problems that are just beyond your
comfort level. Problems that are too easy or too hard don't benefit
you much.
Training Workout #8 - Tuesday, Sept 21,
2010
- Hand in your answers to the eight question
set I gave you in class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer Form. This
is a high school level competition. If you want to take it under
contest conditions time yourself 40 minutes with no calculator.
Questions 1-3 are worth 1 point each, questions 4-6 are worth 2
points each, and questions 7-8 are worth 3 points each.
- Hand in solutions to any five of the
following problems in Zeitz: 2.4.10, 2.4.12, 2.4.13, 2.4.15,
2.4.19, 2.4.21, 2.4.22, 2.4.23.
Give a short informal proof or explanation for each question, don't
just state the answer. Write these on ordinary paper, and staple
these solutions together, but do not staple it to the answer sheet
for the eight question problem set above. Start each new problem on
a separate piece of paper and only write on one side.
Try to find a clever approach that uses either the strategy of
drawing a picture, recasting the problem, or changing your point of
view. Don't hand in a dumb-ass solution unless it's a last
resort.
Note that in problem 2.4.19 the expression \( \lfloor x \rfloor\)
is the greatest integer less than or equal to the real number \( x
\).
There is a wide range of difficulty levels among these problems.
Try to force yourself to work on problems that are just beyond your
comfort level. Problems that are too easy or too hard don't benefit
you much.
- Read the Section 3.1 in Zeitz.
As usual, read it with paper and a pencil in hand,
and try the examples before you read his solutions.
Training Workout #7 - Thursday, Sept 16,
2010
- Hand in your answers to the hexagon problem
set I gave you in class.
Hand in your written answers on ordinary paper, and also use the
extra copy of the hexagon grid page to enter your answers for those
questions. Put your name and Training Workout number at the top
right hand corner of your first page and staple (not dog-ear fold)
all of your pages (including the hex grid page) together. You
should keep the 2-sided question page. You can use the back of the
two sided question page for scratch work.
The original contest conditions for this problem were to take it in
one hour with a team of four people. If you want to collaborate on
this assignment with other people, you may do so, as long as each
person does their own write-up, and each person puts the names of
all of the other students they collaborated with on their
write-ups.
- Read the Section 2.4 in Zeitz.
As usual, read it with paper and a pencil in hand,
and try the examples before you read his solutions.
Training Workout #6 - Tuesday, Sept 13,
2010
- Hand in your answers to the 12 problem set I
gave you in class.
If you want to take this problem set under the conditions of the
actual contest it came from, give yourself 3 hours. It is scored
with 1 point for each correct answer, and 0 points for each
incorrect answer. A score of 8 or more is considered to be a good
score under these conditions. Show your work in your Problem
Solving Notebook.
- Read the Section 2.3 in Zeitz.
As usual, read it with paper and a pencil in hand,
and try the examples before you read his solutions.
- Try to solve Problem 13 on the problem set
you worked on in class.
You don't have to write up a solution to hand in, but
we will discuss solutions at the beginning of class.
Training Workout #5 - Thursday, Sept 9,
2010
- Hand in your answers to the 25 problem set I
gave you in class.
If you want to take this problem set under the conditions of the
actual contest it came from, give yourself 75 minutes. It was
scored with 6 points for each correct answer, 2.5 points for each
blank answer, and 0 points for each incorrect answer. A score of
120 is considered to be a good score under these conditions.
- Read the Section 2.2 in Zeitz.
As usual, read it with paper and a pencil in hand,
and try the examples before you read his solutions. It's key
material in our course, so don't miss it!
- Try to solve 2.1.19, 2.1.21, 2.1.22, and
2.1.23 in Zeitz.
You don't have to write up solutions or hand them in.
We will discuss solutions in class.
Training Workout #4 - Tuesday, Sept 7,
2010
- Hand in your answers to the 25 problem set I
gave you in class.
If you want to take this problem set under the conditions of the
actual contest it came from, give yourself 75 minutes. It was
scored with 6 points for each correct answer, 2.5 points for each
blank answer, and 0 points for each incorrect answer. A score of
100 is considered to be a good score under these conditions.
- Read the rest of Chapter 1 in Zeitz (you
don't have to solve the problems). Also read Section 2.1 in
Zeitz.
Read it with paper and a pencil in hand, and try the
examples before you read his solutions. It's GREAT
stuff!
Training Workout #3 - Thursday, Sept 2,
2010
- Hand in the 10 problem set I gave you in
class.
As usual, you may keep the problems and should hand in your answers
on the Assignment Answer Form.
- Read Chapter 1.2 in Zeitz
In particular, read carefully Example 1.2.1. This is a very
instructive and enlightening example.
Training Workout #2 - Tuesday, Aug 31,
2010
- Hand in the second set of thirty problems you were given in
class.
Note that you should show your work (for problems you don't solve
in your head) in your Training Notebook. Write your answers on the
official Answer form, and hand that in as discussed in class. Be
sure to label it "Training Workout #2" in the upper right hand
corner.
- Read the MATHCOUNTS allowable
forms of answers page. In particular, you don't want to lose
points for a answer that is correct but isn't in the right form.
In particular, if the answer is supposed to be a common fraction,
it has to be a reduced fraction, not a mixed number, or a decimal,
or a non-reduced fraction. Also for questions where it ask you to
find, say, the value of x, if the
answer is three, don't write x=3 for
your answer... just write 3.
- Read Section 1.1 in the textbook if you haven't already, and
try your hand at Example 1.1.3 and 1.1.4 without peeking at the
solutions if you have time. You don't have to hand these
in.
Training Workout #1 - Thursday, Aug 26,
2010
- Obtain and organize the following required items for the
course. Bring the first two to class with you from now on.
- Problem Training Notebook
Record all of your work for problems that require
it in this notebook.
- Must-Know Notebook
This can be a separate notebook or a section in the Problem
Training Notebook).
- Training Log
I have posted a sample training log in spreadsheet format here. If you don't have Excel, you can
install the free Open
Office program and use this
version of the Training Log spreadsheet instead. This should
not be part of the previous two notebooks, because you have to
email it to me before Tuesday's class each week. You can email it
any time on Tuesday before 6:00pm, and it should cover everything
you did for the problem solving course from Tuesday thru Monday
inclusive of the previous week. See the sample spreadsheet for
examples.
- Work as many of the 30 problems as you can from the problem set
you were given in class. If you want to try it under the timed
conditions that the sixth, seventh, and eighth graders have
available, give yourself 40 minutes. Then when you are finished,
try to answer the ones you didn't finish in time. Calculators are
not allowed on these problems.
A few remarks are in order, as this is your first assignment. These
remarks will apply to all of your (non-collaborative) problem sets
and tasks throughout the semester.
You should not talk to anyone or use the internet to get help on
these problems. There is really no point in doing so, because the
goal is to develop your ability to solve problems that you do not
know how to solve initially, not to get the answers right. So if
you feel lost on some problems, that's good. If you feel an urge to
ask someone for help, that's just a bad habit from taking previous
math courses.
You get no benefit in a jogging class if someone else jogs for you,
or if you watch a video of someone jogging on YouTube. Remember
that you will not be graded on how many you get correct, but rather
if you are training well. For example, you might get some MP
awarded if you can explain correctly a clever way that you solved
one of these problems. The answers to the problems will be
collected. You should keep any scratch work in your Problem
Training Notebook.
Hand in just the answers you obtained on this set of problems on
the official Assignment Answer Form.
Label the form "Training Workout #1" and put your name on it. You
can keep the questions. Show your work in your Problem Training
Notebook.
- Read: both of the Prefaces in the textbook
(pg ix-xiii)
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