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From Wikipedia




Students in a school may have 'fill-in-the-blank' sheets of questions, diagrams, or maps to help them with their exercises. Students will often use worksheets to review what has been taught in class. A worksheet generator is a software program that generates problems, particularly in mathematics or numeracy. Such software is often used by teachers to make classroom materials and tests.


In accounting a worksheet often refers to a loose leaf piece of stationery from a columnar pad, as opposed to one that has been bound into a physical ledger book. From this, the term was extended to designate a single, two-dimensional array of data within a computerized spreadsheet program. Common types of worksheets used in business include financial statements, such as profit and loss reports. Analysts, investors, and accountants track a company's financial statements, balance sheets, and other data on worksheets.

In the Microsoft spreadsheet program Excel, a single document is known as a 'workbook' and by default each workbook contains three arrays or 'worksheets'. One advantage of such programs is that they can contain formulae so that if one cell value is changed, the entire document is automatically updated, based on those formulae.

Math wars


While the discussion about math skills has persisted for many decades, the term "math wars" was coined by commentators such as John A. Van de Walle and David Klein. The debate is over traditional mathematics and reform mathematics philosophy and curricula, which differ significantly in approach and content.

Advocates of reform



A considerable body of research by mathematics educators has generally supported reform mathematics and has shown that children who focus on developing a deep conceptual understanding (rather than spending most of their time drilling algorithms) develop both fluency in calculations and conceptual understanding. Advocates explain failures not because the method is at fault, but because these educational methods require a great deal of expertise and have not always been implemented well in actual classrooms.

A backlash which advocates call "poorly understood reform efforts" and critics call "a complete abandonment of instruction in basic mathematics" resulted in "math wars" between reform and traditional methods of mathematics education.

Critics of reform





Reform curricula


Critics of reform textbooks say that they present concepts in a haphazard way. Critics of the reform textbooks and curricula support traditional textbooks such as Singapore Math, which emphasizes direct instruction of basic mathematical concepts, and Saxon math, which emphasizes perpetual drill.


From Yahoo Answers

Question:There is a person in the Gender and Women's Studies section who is often insulting anyone who is not like him and will say they are of low intelligence. But recently he has insulted fiction authors. I really don't get his big-headedness. Read the second paragraph and you'll see what I mean. http://answers.yahoo.com/question/index?qid=20090824110818AAUCO5n

Answers:Hey, some people are just mean and shortsighted, but we live in a free country and they are free to express an opinion. But the rest of us are free to wholly ignore (recommended) or disagree. I say ignore, because often some will post something ugly in order to start an argument. They get off on the conflict. I try not to feed them. Life's too short for that kind of silliness. He strikes me as being one of those navel-gazing keyboard jockeys looking for a following or a fight. Such self-involved types write on forever about pretty much nothing at all and insult anyone who disagrees with them. If he thinks he's smart, let him enjoy his delusion. No one's going to convince him otherwise, anyway! ;>) Honestly, he's NOT worth your time!

Question:A square is a rectangle and a rhombus. Sometimes Always Never POINT VALUE: 1 points -------------------------------------------------------------------------------- If SQUA is a square, then Sometimes Always Never POINT VALUE: 1 points -------------------------------------------------------------------------------- A rhombus has opposite angles that are supplementary. Sometimes Always Never POINT VALUE: 1 points -------------------------------------------------------------------------------- A rectangle has diagonals that are congruent and perpendicular. Sometimes Always Never POINT VALUE: 1 points -------------------------------------------------------------------------------- If the diagonals of a rhombus are 10 cm and 24 cm, then the length of each side of the rhombus is 26 cm. Sometimes Always Never POINT VALUE: 1 points -------------------------------------------------------------------------------- In rhombus ABCD, the diagonals intersect at point E. If the measure of angle ABC = 84 degrees and AC = 18 cm, find the length of each side of the rhombus to the nearest tenth. (Hint: Draw and label a picture.) 12.1 cm 13.5 cm 18.1 cm 26.9 cm POINT VALUE: 3 points -------------------------------------------------------------------------------- ABCD is a rectangle whose diagonals intersect at point E. AC = 10, BC = x + 2, DC = x + 4. Find the perimeter of triangle DEC. 4 16 18 28 POINT VALUE: 3 points -------------------------------------------------------------------------------- In rectangle ABCD, AC = 20, BC = 12, DC = 3x y. and AD = 2x + y. Solve for x and y. Show all work to receive credit. WORTH 3 points (Not yet scored by your instructor) -------------------------------------------------------------------------------- Find the dimensions of rectangle RECT if the diagonals intersect at a 60 degree angle and RC = inches. Leave your answer in simplest radical form. Show work or explain your answer to receive credit. WORTH 3 points (Not yet scored by your instructor) -------------------------------------------------------------------------------- In square SQUA, the length of diagonal QA is 18 cm. In rhombus RHOM, the length of diagonal MH is 18 cm, and the measure of angle RHO = 60 degrees. Which figure has the larger perimeter? What is the difference between the perimeters? Show all work to receive credit. WORTH 3 points (Not yet scored by your instructor)

Answers:always (by definitions of square, rectangle and rhombus) --------------------------------------- sorry can't understand what you want --------------------------------------- sometimes (the opposite angles of a rhombus are equal thus only if it is a square) ---------------------------------------- sometimes (always congruent but perpendicular only if it is a square) ---------------------------------------- never (the diagonals of a rhombus bisect each other perpendicularly so for the diagonals, the side is 13cm) ---------------------------------------- you have AE = 9 cm (as the diagonals bisect each other perpendicularly) and angle ABE = 42 deg (the diagonals bisect the angles between two subsequent sides) thus the side = 9 / cos 42 = 12.1 -------------------------------------------- AC = 10 cm so BD = 10 cm (as the diagonals of a rectangle are congruent) so by Pythagoras theorem, 10^2 = (x + 2)^2 + (x + 4)^2, thus x = -3 + (89)^(1/2) or -3 - (89)^(1/2) which is rejected. thus the answer is EC + ED + CD = 5 + 5 + 1 + (89)^(1/2) = 11 + (89)^(1/2) i have triple checked my answer. check if you have typed the question correctly this is the method though. ------------------------------------------- AC = 20 BC = AD = 12 = 2x + y by Pythagoras theorem, you get 3x - y = 12 thus x = 4.8 and y = 2.4 ------------------------------------------ I'll tell you how to proceed as the value of RC is not typed. the subsequent angles at the point of intersection of the diagonals are supplementary. draw the perpendicular bisectors of the sides, they bisect the angles at the center X. let them intersect RE, EC, CT and RT at L, M, N and O now, RX = EX = CX = TX = RC/2 and angle RXO = 30 deg and angle RXL = 60 deg Use trigonometry to find RO (=RX cos30) and RL (=RX cos60). RT = 2 RO = EC RE = 2 RL = CT I will deal the same problem using the property of parallel lines (this is faster) after drawing the perpendicular bisectors, LN and MO you see that they are parallel to sides EC and CT respectively, and by corresponding angle property of parallel lines and transverse lines, angle RXO = angle RCT = 30 and angle RCE = 60 deg by complementary angle property of angles RCT and RCE again using trigonometry, RT = EC = RC cos30 and RE = CT = RC cos60 you may use pythagoras theorem in some places, but trigonometry is easier. ------------------------------------------------- the side of the square = diagonal / cos45 = 2^(1/2) * 18 thus the perimeter = 72 * 2^(1/2) = 101.8 as for the rhombus, draw the diagonal RO, they bisect perpendicularly at X. now angle RHX = 30 deg thus RH = HX / cos30 = 2 * 9 / 2^(1/2) = 6 * 3^(1/2) thus the perimeter = 24 * 3^(1/2) = 41.5 clearly the rhombus has the smaller perimeter.

Question:I seen a sample written exam, but it only had addition and subtraction on it. I heard that there was algebra on the exam also. If anyone knows and can share it will be greatly appreciated!!

Answers:Typically tests like these are timed tests. You may get 5 minutes to answer as many questions as possible and there may be 150 of them. And usually they are low level math with some minor algebra. Examples: 4+3-5=? 5=6-? (5)6=? You don't need to finish it all. What they are looking for is the amount you get done and the accuracy of your answers. These are called in my book "i'm not an idiot tests". They aren't looking you to show your math genius, just making sure you are somewhat educated and not going to mess up the simplest procedure.

Question:I see a lot of you uneducated Christians saying evolution is impossible because of certain reasons. I've noticed the bible gives no evidence or reason how anything it says is really true or makes any sense at all. Why do you question evolution and evidence of evolution so much but NEVER question evidence of your own religion? Please don't say because you have faith or something. EVERY RELIGION OUT THERE says they have "faith" Faith is just something from the mind that makes you believe in something fictional without doubt. If you have so much "faith" in your religion to just cover your eyes and believe everything it says why don't you have "faith" in evolution if you think faith is the answer to everything that doesn't make sense? It's ok to believe in talking snakes, magical fruits, man walking on water, magical paradise heavens and magical angels with super powers without question or evidence or anything but it isn't ok to believe life on earth evolved even though there is tons of evidence supporting it? That makes no sense. Then you accuse atheists of not opening their minds and having "faith" instead of needing evidence but you always claim there needs to be evidence for everything else? Jesus loves us! You did not answer my question.

Answers:You hit the nail on the head - faith. Faith is the issue that makes people delusional, ignorant and in severe cases causes airplanes to fly into buildings. The world would be a much better place if people did not have strong faith in books that contain so much evil as the Bible and Quran do. @Esther - you are either ignorant, uneducated or hiding from the truth. Your logic that the Bible is true thus evolution is false such an illogical statement. Maybe I am wrong and you have some amazing new evidence for the following: 1 - Plenty of evidence of the Bible being the real word of God - please provide (real evidence, not the typical generalizations or prophesies from before the Bible was written). Please realize what evidence really is. 2 - Proof of Creationism 3 - Explanation to show all the real evidence of evolution false. All the fossils, DNA evidence and tons of scientific backing proving evolution as a fact much be refuted by real scientists(people educated in biology to the PhD level). Also your comments: It is not uneducated to believe in something that you don't believe in. It is uneducated to pitch a fit because people believe something differently than you do. - The comments that you stated were uneducated. Anyone with a basic biology education knows that it is a FACT that you are uneducated in biology. You may be educated in other subjects, but you are very uneducated in biology and evolution and logic. (Unless of course you provide new revolutionary evidence to the contrary that has just been discovered - but I doubt you are on the leading edge of science...just a guess) Also if the Bible is the true word of God, please explain why you worship a child killer? 2 Kings 2 : 23-24. There is no excuse for this and proves how delusional or ignorant followers are. And this is just one example of many.

From Youtube

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