Curso 2015/16

Comenzamos un nuevo curso llenos de energia!!!

Práctica de álgebra

ÁLGEBRA

ÁLGEBRA 2

ÁLGEBRA 3

ÁLGEBRA 4

Los dos primeros enlaces tienen actividades de álgebra de suma y resta.

Álgebra 3 y 4, tienen actividades de división y multiplicación.

Tech Survey

www.BByt.es/AU3ET

Conversión de temperatura

Conversion of Temperature

Quick Celsius (°C) / Fahrenheit (°F) Conversion: Conversion Tool Just type a value in either box: °C:    <=>   °F:  Or use the Interactive Thermometer, Or this method: °F to °C Deduct 32, then multiply by 5, then divide by 9 °C to °F Multiply by 9, then divide by 5, then add 32 (Explanation Below ...)

Typical Temperatures

°C	°F	Description
100	212	Water boils
40	104	Hot Bath
37	98.6	Body temperature
30	86	Beach weather
21	70	Room temperature
10	50	Cool Day
0	32	Freezing point of water
-18	0	Very Cold Day
-40	-40	Extremely Cold Day (and the same number!)
(bold are exact)

Explanation

There are two main temperature scales:

°F, the Fahrenheit Scale (used in the US), and
°C, the Celsius Scale (part of the Metric System, used in most other countries)

They both measure the same thing (temperature!), but use different numbers:

• Boiling water (at normal pressure) measures 100° in Celsius, but 212° in Fahrenheit
• And as water freezes it measures 0° in Celsius, but 32° in Fahrenheit

Like this:

Looking at the diagram, notice:

• The scales start at a different number (0 vs 32), so we will need to add or subtract 32
• The scales rise at a different rate (100 vs 180), so we will also need to multiply

And this is how it works out:

To convert from Celsius to Fahrenheit, first multiply by 180/100, then add 32

To convert from Fahrenheit to Celsius, first subtract 32, then multiply by 100/180

Note: 180/100 can be simplified to 9/5, and likewise 100/180=5/9, so this is the easiest way:

°C to °F	Multiply by 9, then divide by 5, then add 32
°F to °C	Deduct 32, then multiply by 5, then divide by 9

We can write that as a formula like this:

Celsius to Fahrenheit	(°C × 9/5) + 32 = °F
Fahrenheit to Celsius	(°F - 32) x 5/9 = °C

Example: Convert 26° Celsius (a nice warm day) to Fahrenheit

First: 26° × 9/5 = 234/5 = 46.8
Then: 46.8 + 32 = 78.8° F

Example: Convert 98.6° Fahrenheit (normal body temperature) to Celsius

First: 98.6° - 32 = 66.6
Then: 66.6 × 5/9 = 333/9 = 37° C

 

Other Methods That Work

Use 1.8 instead of 9/5

9/5 is equal to 1.8, so you could also use this method:

Celsius to Fahrenheit:	°C × 1.8 + 32 = °F
Fahrenheit to Celsius:	(°F - 32) / 1.8 = °C

To make "×1.8" easier you can multiply by 2 and subtract 10%, but it only works for °C to °F:

Celsius to Fahrenheit:

(°C × 2) less 10% + 32 = °F

Example: Convert 20° Celsius (A nice day) to Fahrenheit

• 20x2 = 40
• less 10% is 40-4 = 36
• 36+32 = 68° F

Add 40, Multiply, Subtract 40

Since both scales cross at -40° (-40° C equals -40° F) you can:

• add 40,
• multiply by 5/9 (for °F to °C), or 9/5 (for °C to °F)
• subtract 40

Example: Convert 10° Celsius (A cool day) to Fahrenheit

• 10+40 = 50
• 50×9/5 = 90
• 90-40 = 50° F

To remember 9/5 for °C to °F think "F is greater than C, so there are more °F than °C"

Quick, but Not Accurate

Celsius to Fahrenheit:	Double, then add 30
Fahrenheit to Celsius:	Subtract 30, then halve

Examples °C → °F:

• 0° C → 0+30 → 30° F (low by 2°)
• 10° C → 20+30 → 50° F (exact!)
• 30° C → 60+30 → 90° F (high by 4°)
• 180° C → 360+30 → 390° F (high by 34°, not good)

Examples °F → °C:

• 40° F → 10/2 → 5° C (almost right)
• 80° F → 50/2 → 25° C (low by about 2°)
• 120° F → 90/2 → 45° C (low by about 4°)
• 450° F → 420/2 → 210° C (low by about 22°, not good)

Prueba de sociales

Pincha AQUI

Evaluations - Student Pre/Post Tests

Junior Achievement is committed to ongoing, rigorous evaluation and quality assurance of all JA programs. In the past 5 years, more than 96 percent of JA's programs have undergone comprehensive, nationwide evaluations of program efficacy. We encourage all JA offices to conduct student pre-/post-tests for each of our programs. Below is the listing of available student pre-/post-tests for each program.

Elementary School Programs

JA Ourselves **	Volunteer Survey	Teacher Survey
JA Our Families **	Volunteer Survey	Teacher Survey
JA Our Community **	Volunteer Survey	Teacher Survey
JA Our City	Student Test	Answer Key
JA Our Region	Student Test	Answer Key
JA Our Nation	Student Test	Answer Key
JA More Than Money	Student Test	Answer Key
JA BizTown	Student Test	Answer Key

Cookies & Carols 2013

Cookies and Carols 2013

Exponents

Exponents 1

Exponents 2

Escribe un comentario debajo. Gracias

Flipped math lesson

Fractions: mixed numbers facts

Adding mixed numbers

Subtracting mixed numbers

Multiplying mixed numbers

Dividing mixed numbers

No olvidéis dejar un comentario, para hacerme saber que lo habéis visto.

Gracias

Lectura 4th grado

Viva Ramona!

Papá cuenta una historia a Chita

Coyote acomoda las estrellas

Los pájaros de la cosecha

Lon Po Po

Que ruido

El poni de Leah

Yipi yei

Un pueblo en auge

Helado de chocolate

Si ganaras un millón

Yo estoy a cargo de...

El regalo de Alejandro

Ecología para niños

El armadillo de Amarillo

Visitantes del espacio

Campeonas

En nuestra clase de 5th grado, tenemos auténticas campeonas en distintas disciplinas deportivas, como por ejemplo Alaina S. y Christine K. en natación, y Jacquelyn P. en gimnasia, entre otros. Gracias a estas fotos, podemos hacernos una idea de los logros conseguidos por estas fantásticas deportistas. Si siguen entrenando y trabajando duro, ¿quién sabe? quizás algún día podamos verlos el los Juegos Olímpicos.

Canción de Navidad para 5th grado (2012)

Lectura 4th grado

11-Los cuentos de Julián.

10-Rosie, la historia de una perra visitadora.

09-Peque Gruñon y el huevo gigante.

SER

Me gustas tú

Lectura 5th grado

09-Peque Gruñon y el huevo gigante.

Choral Festival Survey

Choral Festival Survey                                    gr. 5 assignment due Monday, Oct. 22

Click here

Choral Festival Survey


or:

Go to your school’s home page:

https://sites.google.com/a/holyfamily.dbq.pvt.k12.ia.us/saint-anthony/

or

https://sites.google.com/a/holyfamily.dbq.pvt.k12.ia.us/olg/

Click on the “Choral festival form” tab at the top.  It is found on the top row with all the teachers’ names. Fill out the form completely. Click submit when you are finished. You should get a “thank you for your response” message after you submit your survey.

Composición de Catherine

5th Grade Lectura

07-El emperador y la cometa.





08-Noches de los frailecillos.

05-Los juegos olimpicos.





06-El nadador.






07-Bahia de tortugas.






08-Balto, el perro que salvo Nome.







09-Las fotos salvajes son mi vida.

Fracciones

A circle is a geometric shape that we have seen in other lessons. The circle to the left can be used to represent one whole. We can divide this circle into equal parts as shown below.

This circle has been divided into 2 equal parts.

This circle has been divided into 3 equal parts.

This circle has been divided into 4 equal parts.

We can shade a portion of a circle to name a specific part of the whole as shown below.

Definition:

A fraction names part of a region or part of a group. The top number of a fraction is called its numerator and the bottom part is itsdenominator.

So a fraction is the number of shaded parts divided by the number of equal parts as shown below:

number of shaded parts   numerator
number of equal parts      denominator

Looking at the numbers above, we have:

There are two equal parts, giving a denominator of 2. One of the parts is shaded, giving a numerator of 1.

There are three equal parts, giving a denominator of 3. Two of the parts are shaded, giving a numerator of 2.

There are four equal parts, giving a denominator of 4. One of the parts is shaded, giving a numerator of 1.

Note that the fraction bar means to divide the numerator by the denominator. Let's look at some more examples of fractions. In examples 1 through 4 below, we have identified the numerator and the denominator for each shaded circle. We have also written each fraction as a number and using words.

Example 1 one-half

Example 2 one-third two-thirds

Example 3
one-fourth	two-fourths	three-fourths

Example 4
one-fifth	two-fifths	three-fifths	four-fifths

Why is the number  written as three-fourths? We use a hyphen to distinguish a fraction from a ratio. For example, "The ratio of girls to boys in a class is 3 to 4." This ratio is written a 3 to 4, or 3:4. We do not know how many students are in the whole class. However, the fraction  is written as three-fourths (with a hyphen) because 3 is 3/4 of one whole. Thus a ratio names a relationship, whereas, a fraction names a number that represents the part of a whole. When writing a fraction, a hyphen is always used.

It is important to note that other shapes besides a circle can be divided in equal parts. For example, we can let a rectangle represent one whole, and then divide it into equal parts as shown below.

	two equal parts
	three equal parts
	four equal parts
	five equal parts

Remember that a fraction is the number of shaded parts divided by the number of equal parts. In the example below, rectangles have been shaded to represent different fractions.

Example 5
		one-half
		one-third
		one-fourth
		one-fifth

The fractions above all have the same numerator. Each of these fractions is called a unit fraction.

Definition:

A unit fraction is a fraction whose numerator is one. Each unit fraction is part of one whole (the number 1). The denominator names that part. Every fraction is a multiple of a unit fraction.

In examples 6 through 8, we will identify the fraction represented by the shaded portion of each shape.

Example 6 a  In example 6, there are four equal parts in each rectangle. Three sections have been shaded in each rectangle, but not the same three. This was done intentionally to demonstrate that any 3 of the 4 equal parts can be shaded to represent the fraction three-fourths. b

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Example 7

a b In example 7, each circle is shaded in different sections. However, both circles represent the fraction two-thirds. The value of a fraction is not changed by which sections are shaded.

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Example 8

a  In example 8, each rectangle is shaded in different sections. However, both rectangles represent the fraction two-fifths. Once again, the value of a fraction is not changed by which sections are shaded. b

In the examples above, we demonstrated that the value of a fraction is not changed by which sections are shaded. This is because a fraction is thenumber of shaded parts divided by the number of equal parts.

Let's look at some more examples.

Example 9 Example 10 Example 12 Example 11

In example 9, the circle has been shaded horizontally; whereas, in example 10, the circle was shaded vertically. The circles in both examples represent the same fraction, one-half. The positioning of the shaded region does not change the value of a fraction. In example 11, the rectangle is positioned horizontally; whereas in example 12, the rectangle is positioned vertically. Both rectangles represent the fraction four-fifths. The positioning of a shape does not change the value of the fraction it represents. Remember that a fraction is the number of shaded parts divided by thenumber of equal parts.

In example 13, we will write each fraction using words. Place your mouse over the red text to see if you got it right.

Example 13
Number	Words
	answer 1
	answer 2
	answer 3
	answer 4

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Summary:

A fraction names part of a region or part of a group. A fraction is the number of shaded parts divided by the number of equal parts. The numerator is the number above the fraction bar, and the denominator is the number below the fraction bar.