Unidad 0: Evaluación inicial – 4ºC

Martes 20 de septiembre

0

Verdadero o falso: lenguaje algebraico

Elige la respuesta correcta

1 / 7

El anterior de un número se escribe como x + 1

2 / 7

El doble de un número significa multiplicar por 3

3 / 7

El siguiente de un número se escribe x + 1

4 / 7

Una cantidad desconocida se representa con la letra x

5 / 7

La mitad de un número significa sumar dos unidades

6 / 7

La tercera parte de un número significa restar tres unidades

7 / 7

El triple de un número significa multiplicar por 3

Tu puntación es

0

Ecuaciones de primer grado

Elige la respuesta correcta

1 / 5

8 x + 6 + x = - 12

2 / 5

7 x + x = 2 x + 6

3 / 5

2 x + x - 4 = 8 + x

4 / 5

-7 + 2 x = 8 - 3 x

5 / 5

2 x + 1 = x + 4

Tu puntación es

0

Suma y resta de monomios

Elige la respuesta correcta

Recuerda: sólo se pueden sumar o restar monomios que sean semejantes, es decir, que tengan la misma parte literal

1 / 8

2 x + x³ - 3 x + 2 x³

2 / 8

- x + 4 x

3 / 8

7 x + 5 x

4 / 8

8 x + 5 x² - 7 x

5 / 8

6 x²y + 8 xy² - 7 xy²

6 / 8

- 9 x + 10 x

7 / 8

ab + 4 a²b - 7 a²b + 6 ab

8 / 8

5 x + 3 x

Tu puntación es

Situation 2: Ada

Ada is an archaeologist and she will speak in a high school class tomorrow. Her old math teacher has invited her.

The talk starts at a quarter past ten. It takes her twenty minutes to get from her house to the school. She spends fifteen minutes having breakfast and 10 minutes to shower and changing clothes. At what time does she have to get up?

After the talk Ada must go to the archeological site where she works, Los Millares. Two days ago she filled the tank and since then she spent two fifths of it. How much petrol is there in the tank? She knows that she will spend two thirds of the tank to get to Los Millares. How much petrol will be left? If the tank has a capacity of sixty three liters, how many liters will be in the tank? If she decides to fill the tank then and it costs 1,9457€ per liter, how much money will she spend?

On Monday they will have the visit of a group of students. She talks with Helen to prepare the visit. 

A: We have to prepare the visiting for Monday, how many students will be?

H: Let me see, we have a group of sixty students.

A: The visit has four different parts: the initial video, the cemetery, the town and the museum. It takes 15 minutes to watch the video, 20 minutes to visit the cemetery, 35 minutes to visit the town and the rest of the time the students can visit the museum. If the whole visit lasts for one hour and a half, how much time will they have for the museum?

H: (answer)

A: Ok. On Monday there will be four guides. We need to separate the students into groups. How many students will there be in each group?

H: (answer)

A: Fine, so we have ___ groups of ___ students. While one group sees the cemetery, another group sees the town and a third sees the museum. The others wait in the reception watching the video. 

Look at the distribution of the groups when they arrive. If they must follow the arrows to move through the site indicate which group will be the last to see the video, to visit the cemetery, the town and the museum.

Viernes 16 de septiembre

MaRS

Math for Real Situations

Welcome to MARS! 

MARS is a new company that solves different types of problems related to real life. In this new job you will work on your skills and win experience. Your hard work will be rewarded!


Durante cada unidad habrá tareas especiales que os darán puntos y al final de la unidad los tres primeros del ránking tendrán una pregunta en el examen. Además los puntos son acumulables para el final del curso y cuando se termine el curso habrá un reconocimiento a los tres primeros del ránking general.


Situation 1: The life of Numericus

Numericus lives in Almería and he works at a fuel station. He is very curious, he likes to read and see documentaries. This morning while he was having breakfast, he read the following article:

Beginnings

Letter soup

Crossword operations

Four-step process for problem solving


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