Mathematics Standard LevelMaths SL workshop - InThinking Portfolio Task~Student Checklist ■ ■ ■ ■ ■ ■
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Does your portfolio report read like an article for a mathematical journal? Can your portfolio report be read without referring to the task questions? Does the introduction give a brief overview of the report and its purpose? Does the conclusion summarize the findings? Has unnecessary repetition been avoided? Are graphs, tables and diagrams sufficiently labelled? (including handwritten labels for calculator screen images)

Do all graphs, tables and diagrams include a title and/or caption? Are graphs, tables and diagrams in the main body of text?
(preferably no full-page graphs; and no appendix containing graphs) Has technology been used in a way that helps develop mathematical ideas? Has the application of technology been clearly explained and/or demonstrated? Has calculator/computer notation and terminology not been used? ( y = x2, noty = x ^ 2 ;≈ , not=for approx. values;π , not pi;x, not abs(x); etc) Has the form declaring it is your own work been signed and included with report? Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No

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for Type I Tasks – Mathematical Investigation:
■ Has the general statement been clearly stated?
■ Has the validity of the general statement been tested with further examples? ■ Have comments on scope and limitations of the general statement been included? (in main body of report and summarized in conclusion) ■ Is there a sufficient informal justification of the general statement? for Type II Tasks – Mathematical Modelling:

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Are the variables, parameters and constraints clearly defined? Is there sufficient analysis of how well the mathematical model fits the data? Has the model been applied to other situations?
(“other situations” can include...

...
Session 7 : Microworld emulation workshop
Topic : Integrated Logistics
Case reference : Textbook P.431 “Integrated Logistics for DEP/GARD”
Group size : 4 (Altogether 10 groups for a class of about 40 students)
General Description
This case finds Tom Lippert, senior representative for DuPont Engineering Polymers (DEP), is now in a situation common to today’s competitive business environment. His company, as a supplier to a major manufacturer (GARD), is faced with changing times. GARD is in the midst of a “changing of the guard” as Mr. Lippert’s long-time contact, Mike O’Leary, retires. O’Leary’s successor, Richard Binish, brings a new set of supplier expectations (what are these ?) to the fore of GARD’s purchasing strategy. Over the years, the quality of competitors’ products began to match DEP’s. Firms now compete based on logistics quality. To keep the GARD business, DEP must improve its logistical performance to meet the customer’s rising expectations.
The case illustrates a concept called the “shrinking service window.” The idea behind the shrinking service window is that customers have begun to expect higher levels of service (higher fill rates) in less time (shorter order cycles or lead time). In GARD’s case, a change in leadership is responsible for the new, higher expectations. The change, however, is indicative of the realization that logistics has become a strategic weapon. The case illustrates that DEP must...

...Workshop for topic #1 – Cash & Receivables
Not for grading
Exercise 1
Trade and cash discounts; the gross method and the net method compared
( LO3
DEC Corporation, a manufacturer of furnaces, sold 200 units to a customer on April 6, 2013. The units have a list price of $800 each, but the customer was given a 20% trade discount. The terms of the sale were 1/10, n30.
Required:
1a. Prepare the journal entries to record the sale on April 6 (ignore cost of goods) and payment on April 16, 2013, assuming that the gross method of accounting for cash discounts is used.
1b. Prepare the journal entries to record the sale on April 6 (ignore cost of goods) and payment on May 6, 2013, assuming that the gross method of accounting for cash discounts is used.
2. Repeat requirements 1a. and 1b, assuming that the net method of accounting for cash discounts is used.
Exercise 2
Uncollectible accounts; allowance method; balance sheet approach
( LO5 LO6
The Cheese Wizard Company offers credit terms to its customers. At the end of 2013, accounts receivable totaled $2,223,000. The allowance method is used to account for uncollectible accounts. The allowance for uncollectible accounts had a credit balance of $68,000 at the beginning of 2013 and $46,200 in receivables was written off during the year as uncollectible. No previously written off receivables were collected. The company estimates bad debts by applying a percentage of 3% to accounts...

...History of mathematics
A proof from Euclid's Elements, widely considered the most influential textbook of all time.[1]
The area of study known as the history of mathematics is primarily an investigation into the origin of discoveries in mathematics and, to a lesser extent, an investigation into the mathematical methods and notation of the past.
Before the modern age and the worldwide spread of knowledge, written examples of new mathematical developments have come to light only in a few locales. The most ancient mathematical texts available arePlimpton 322 (Babylonian mathematics c. 1900 BC),[2] the Rhind Mathematical Papyrus (Egyptian mathematics c. 2000-1800 BC)[3] and the Moscow Mathematical Papyrus (Egyptian mathematics c. 1890 BC). All of these texts concern the so-calledPythagorean theorem, which seems to be the most ancient and widespread mathematical development after basic arithmetic and geometry.
The study of mathematics as a subject in its own right begins in the 6th century BC with the Pythagoreans, who coined the term "mathematics" from the ancient Greekμάθημα (mathema), meaning "subject of instruction".[4]Greek mathematics greatly refined the methods (especially through the introduction of deductive reasoning andmathematical rigor in proofs) and expanded the subject matter of mathematics.[5] Chinese...

...Week 5
Final Exam
Continuous schedule from Friday , November 1st. 9am until Saturday , November 2nd., 23:59pm.
Monday, November 4, 2013
20%
100%
To obtain the opportunity to take your final exam you should have delivered at least 6 activities.
Please keep this Agenda at hand so that you can deliver you assignments on time.
Greetings,
Blanca Alanís
Posted by: BLANCA HILDA ALANIS PENA
Posted to: CEL.HI09107V.343.13320 Inglés VII
Bibliography
Posted on: Thursday, October 3, 2013
Hello guys,
The books we are going to use are:
Text book:
Richards, Jack C. & Sandy, Chuck (2009). Passages 2 (2nd ed.). New York, N.Y. Cambridge University Press.
ISBN 978-0-521-68391-3
Workbook:
Richards, Jack C. & Sandy, Chuck (2009). Passages 2 (2nd ed.). New York, N.Y. Cambridge University Press.
ISBN 978-0-521-68393-7
Make sure they are the 2nd. edition, because the 1st. edition is completely different.
In your course, in the Bibliography Section you have a link of a bookstore where you can buy the books. You can try other bookstores in your city, of course, but they don't usually have the book in stock.
Greetings,
Blanca Alanís
Posted by: BLANCA HILDA ALANIS PENA
Posted to: CEL.HI09107V.343.13320 Inglés VII
Grading in the courseWeek 5
Final Exam
Continuous schedule from Friday , November 1st. 9am until Saturday , November 2nd., 23:59pm.
Monday, November 4, 2013
20%
100%
To...

...concrete model.
Looking on the locality of the paper, I highly acknowledge the fact that the researchers described the current state of math education in the Philippines. They emphasized the fact that we are more focused on procedural knowledge rather than the more desired conceptual knowledge. That is our disadvantage because we usually train students to perform math without understanding or making connections on what they are doing. By mentioning this, the readers would really have an idea that the paper itself could be a solution to the problem mentioned. Moreover, it makes the thesis more realistic.
To sum up everything that was tackled, I could say that the thesis served to have an important purpose in the current state of Mathematics Education in the Philippines. It is very informative and feasible. Since it is a small study because it only involved 6 average students, we could propose more studies rooting from this which would have a bigger scope such as implementing the same study but now comparing it to the results gathered from high and low performing students....

...HISTORY OF MATHEMATICS
The history of mathematics is nearly as old as humanity itself. Since antiquity, mathematics has been fundamental to advances in science, engineering, and philosophy. It has evolved from simple counting, measurement and calculation, and the systematic study of the shapes and motions of physical objects, through the application of abstraction, imagination and logic, to the broad, complex and often abstract discipline we know today.
From the notched bones of early man to the mathematical advances brought about by settled agriculture in Mesopotamia and Egypt and the revolutionary developments of ancient Greece and its Hellenistic empire, the story of mathematics is a long and impressive one.
Prehistoric Mathematics
The oldest known possibly mathematical object is the Lebombo bone, discovered in the Lebombo mountains of Swaziland and dated to approximately 35,000 BC. It consists of 29 distinct notches cut into a baboon's fibula. Also prehistoric artifacts discovered in Africa and France, dated between 35,000 and 20,000 years old, suggest early attempts to quantify time.
The Ishango bone, found near the headwaters of the Nile river (northeastern Congo), may be as much as 20,000 years old and consists of a series of tally marks carved in three columns running the length of the bone. Common interpretations are that the Ishango bone shows either the earliest known...

...CSP plants convert the sun’s rays into high-temperature heat using various mirror configurations. This thermal energy is converted to mechanical energy with a heat engine (for instance a steam turbine) and ultimately to electricity utilising a generator.
The plants consist of two parts: one that collects solar energy and converts it to heat, and another that converts heat energy to electricity. Thermal energy storage is a possible addition which accommodates dispatachable power — a drawcard for solar thermal amongst renewable energy resources.
For the study, the plant was simulated in the solar booster mode, which has proven to produce more rewarding and stable results than fuel saving mode.
The following components, which are standard to power plants with steam turbines, were integrated into a whole-plant model:
Boiler – with a furnace, water walls, drums, evaporative bank, superheater, reheater, economisers and air heaters
Steam turbine – extraction condensing type with high-pressure, intermediate and low-pressure sections
Electrical generator – no gearbox included
Condenser – heat exchanger between turbine exhaust steam and cooling water from cooling towers (either wet or dry)
Feedwater system – feedwater pumps and heaters
With the above components, a sequential approach was followed and heat and mass balances were performed with efficiency analyses.
SAPG and CSP comparison
The case study compares a SAPG plant in Lephalale, home...