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Adventures in math
http://www.merlot.org/merlot/viewMaterial.htm?id=852247
This is a free educational program developed to help teachers teach key math skills while reinforcing the importance of financial responsibility. Sponsored by Regions Bank.

Mathematics of Planet Earth
http://www.merlot.org/merlot/viewMaterial.htm?id=845084
More than a hundred scientific societies, universities, research institutes, and organizations all over the world have banded together to dedicate 2013 as a special year for the Mathematics of Planet Earth.Our planet is the setting for dynamic processes of all sorts, including the geophysical processes in the mantle, the continents, and the oceans, the atmospheric processes that determine our weather and climates, the biological processes involving living species and their interactions, and the human processes of finance, agriculture, water, transportation, and energy. The challenges facing our planet and our civilization are multidisciplinary and multifaceted, and the mathematical sciences play a central role in the scientific effort to understand and to deal with these challenges.

Trig Cheat Sheet
http://www.merlot.org/merlot/viewMaterial.htm?id=843603
Free online mobilefriendly Trigonometry endpage notes and formulas.

tTest & ANOVA eBook App for iPad
http://www.merlot.org/merlot/viewMaterial.htm?id=780170
The fifth volume in a series of Advanced Educational Statistics  Step by Step Guidebooks, tTest & ANOVA builds on the innovative teaching methodology for learning educational statistics. A narrative, along with videos, review questions, output data sets and sample data sets are included. As with previous volumes in the series, the video presentations are the focal point of the book and will be especially helpful for guiding the learner through the process of conducting statistical analyses using SPSS and interpreting SPSS output data.Chapter 1 is available for free as a sample from the iTunes Bookstore. The cost of the entire book is $2.99.

Factor Analysis eBook App for iPad
http://www.merlot.org/merlot/viewMaterial.htm?id=780177
The second volume in a series of Advanced Educational Statistics  Step by Step Guidebooks, Factor Analysis continues a clear, demystified approach to learning educational statistics. A narrative, along with videos, review questions, output data sets and sample data sets are included. The video presentations are the focus of the book and will be especially helpful for guiding the learner through the process of conducting statistical analyses using SPSS and interpreting SPSS output data. This is a free app

Designer Trigonometric Calculator App for iPad
http://www.merlot.org/merlot/viewMaterial.htm?id=738965
'Don;t want an expensive calculator with functions you would never use?Do you want to solve your trigonometric problems in a faster and more pleasing way?Well then , Designer Trigonometric Calculator is the right thing for you!With al the trigonometric functions in just one application , you'll be solving your problems in no time.!!!Choose the way you like your calculator to be!Calculate Sin , Cos , Tan etc. in degrees or radians as per your wish in this packaged application!'This is a free app

Evaluating A Textbook:
http://www.merlot.org/merlot/viewMaterial.htm?id=732218
A new curriculum, and then a book based upon that, always seeks evaluation. The book should not only be attractive and interesting, but also upto the mark with the age level of students, appropriateness of content, relevance, utility, etc. Every new book should be thoroughly evaluated before it is given a place in list of textbook or suggestive readings or after introducing in a course. An exercise for evaluating a textbook has been presented in the current book. For this purpose, a textbook for class IX Mathematics, introduced in schools, has been selected. The study goes through explaining various aspects of evaluating the book. It makes an effort to see the book through the lenses of teachers as well as students. The book looks forward to place teachers not just as mere followers of the book introduced, but as reflectors, too, upon various aspects of the book.

Developing a Standardized Achievement Test
http://www.merlot.org/merlot/viewMaterial.htm?id=732215
In this book, the entire study consisted of basically five phases. In the present investigation, the definition of standardization has been adopted as given by Roger T. Lennon i.e. here standardization means to determine validity, reliability and norms of the test. The definition is also mentioned in "Measurement in Physical Education" by Donald K. Mathews (1978) The five phases are as follows: Phase I: Planning and preparation of a test set of 50 questions from Trigonometry for class IX. Phase II: Percentage of agreeability or contentcumface validity with the help of subject experts and field experts. Phase III: Group try out for Item analysis. Phase IV: The final tryout to obtain reliability Phase V: Developing norms for the test. The above design of the study is also supported by Lee J. Cronbach (1984).

MyScript Calculator App for iOS
http://www.merlot.org/merlot/viewMaterial.htm?id=731857
'With MyScript© Calculator, perform mathematical operations naturally using your handwriting.Easy, simple and intuitive, just write the mathematical expression on the screen then let MyScript technology perform its magic converting symbols and numbers to digital text and delivering the result in real time. The same experience as writing on paper with the advantages of a digital device (Scratchouts, results in real time, …).Solve mathematical equations by hand without actually having to crunch the numbers yourself'BENEFITS AND FEATURES Works on your iPhone (iOS6): 3GS, 4,4S,5. Works on your iPad (iOS6): iPad2, iPad3, iPad4, iPad mini. Use your handwriting to write any arithmetic formula Write and calculate mathematical expressions in an intuitive and natural way with no keyboard Scratchout gestures to easily delete symbols and numbersPortrait and landscape operationRedo and undo funtions'

ecuaciones de primer grado
http://www.merlot.org/merlot/viewMaterial.htm?id=723621
Este material contiene ecuaciones de primer grado