### Bilingual Maths 4º E.S.O. (2017-2018)

15th February, 2018
Common Functions

10th February, 2018
Go further with A.R.C. of a function...
7th February, 2018
Average Rate of Change
The following video-clip, extracted from the well known movie by Anne Hache and Harrison Ford,
"Six Days, Seven Nights", shows us a funny scene, closely related to Average Rate of Change of a function. We will solve a problem about it when you have learned the idea properly...

"Click" on the thumbnail  below to watch the video-clip

Average Rate of Change  A.R.C.

6th February, 2018

"Click" here to get the answer sheet

30th January, 2018

First term work plan

14th January, 2018

8th January, 2018

19th December, 2017
Second degree inequations (Solved examples)
Practise what you learned...   Worksheet

13th December, 2017
Answers to Global exam (first term)

13th  December, 2017
Inequalities with "x" in the denominator...

How to plot a parabola without losing your temper...

1.  Algebra revision (equations)
2.  Algebra revision (inequalities)

30th November, 2017
Systems of equations

Systems of (linear) equations

29th, November 2017
"Click" here to get solved non-linear systems...
28th, November 2017
Factoring Polynomials Short Exam (Aswers)
Rational and Biquadratic Equations Exam (Aswers)

26th, November 2017
Equations (Answers to Exercises page 71)

25th, November 2017
Nonlinear systems

How to solve nonlinear systems
(PDF presentation)
Nonlinear Systems of Equations (solved examples)

An example of a solved nonlinear system...
Thanks, Ana...
Here is the graphical solution for the system...

Equations revision (just in case you need it...)

version

Rational equations (Interactive exercises)
Thanks again to

23th, November 2017
Equations pages 60, 61 and 62 (Short answers)

14th November, 2017
Algebraic fractions (pages 46 and 47): Short answers
Get the complete solutions on the following links...

13th November, 2017

Answers to exercise 24, at page 50

8th November, 2017
Factoring polynomials (Worked exercises)

31st October, 2017
Logarithms and Scientific Notation
I) Solved exercices
II) Solved exercices

29th October, 2017

New! Revision Unit 1: solved exercises

23th October, 2017

21/Octubre/2017
Factoring polynomials (Solved exercises)
Factoring polynomials: Worksheet
¡Cuidado! Puede haber errores en alguna de las soluciones. Intenta encontrarlos...

18th October, 2017
Algebra

18th, October 2017
Listen to Steve Kelly (logarithms)
https://youtu.be/zzu2POfYv0Y

17th, October 2017
Logarithms: Practise with these solved exercises...
Level I "Click" here
Level II "Click" here

Solve problems:
Complete Answers to 51-53, page 31

7th, October 2017
Logarithms, pages 30-31: Answer Key  ¡NEW!

21th September, 2017
Here are some presentations that could be useful for revising:

Powers and Roots

20th, September 2017
Intervals and half-lines
For further information, "Click" here
Balls (Level I)
Balls (Level II)

19th, September 2017
Real numbers

2017/2018 school year

Welcome to our class!

First of all, I would like you to read carefully the following document. It contains