Blog de Matemáticas de Patricia Sánchez
READING NUMBERS - POWERS
Order
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statement containing numbers and
operations
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The number of times the base occurs
as a factor.
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+, -, x, :
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Expression
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some form of arrangement
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Repeated factor in a power
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[ ], ( )
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Another name for exponent
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exponent
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The numbers or expressions
multiplied to form a product.
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base
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Grouping symbols
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a shorter process
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Evaluate
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power
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Operation
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factors
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Simplify
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find the answer to
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- Positive integers indicate temperatures ______zero or height ______ sea level.
- Negative integers indicate temperatures ______zero or height ______sea level.
- On the Integer Line, positive integers are found to the ______of zero, while negative integers are found to the ______ of zero.
- The integers 4 and -4 are called ______ integers, since they are the same distance away from zero.
- The absolute value of a number is its distance away from ______.
- -1 is to the right of -4 on the number line; therefore -1 is greater than ______. We use the symbol ______to represent the words "greater than".
- -3 is to the left of 1 on the number line, therefore -3 is less than ______. We use the symbol ______to represent the words "less than".
(xm) x (xn) = x(m + n)
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power of a product
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(xm) / (xn) = x(m - n)
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negative exponent
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(xm)n = x(m x n)
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quotient law
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(xy)m = xm x ym
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power of a power
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(x/y)m =xm / ym
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product law
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x(-m) = 1 / xm
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power of a quotient
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Tangram
The tangramis a dissection puzzle consisting of seven flat shapes, called tans,
which are put together to form shapes. The objective of the puzzle is
to form a specific shape (given only an outline or silhouette) using all
seven pieces, which may not overlap. It is reputed to have been
invented in China during the Song Dynasty, and then carried over to Europe by trading ships in the early 19th century. It became very popular in Europe for a time then, and then again during World War I. It is one of the most popular dissection puzzles in the world. |
PREDICCIONES
Julia Sánchez-Cantalejo Castañeda
Diplomada en Ciencias y Técnicas Estadísticas
Escuela Andaluza de Salud Pública (Granada)
Escuela Andaluza de Salud Pública (Granada)
La Estadística nos abre cada día más puertas para conocer la probabilidad de ocurrencia de sucesos de diversos ámbitos. En un futuro cercano seremos capaces de pronosticar, con una alta probabilidad, el color de ojos de una persona antes de nacer, la aparición de determinadas enfermedades como el Alzheimer o la producción de erupciones volcánicas. Sin embargo, aún quedarán muchas preguntas sin responder como, por ejemplo, si nos tocará la lotería o el momento exacto en el que se producirá un terremoto. Algunos fenómenos pueden predecirse y otros no. El interesante reportaje Predicciones del programa tres14 (RTVE) nos cuenta cómo pueden llegar a pronosticarse ciertos eventos y por qué otros son imposibles de vaticinar. ¿Te lo vas a perder?
"La sabiduría consiste no sólo en ver lo que tienes ante ti, sino en prever lo que va a venir"
Terencio
Italia, 194 aC – 159 aC
Terencio
Italia, 194 aC – 159 aC
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