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2-HOUR CLIL - INTRODUCTION TO ALGEBRA - 1 ESO

Subject:

Mathematics

Language:

English

Level:

1st ESO 

 

INTRODUCTION:

At the end of this 2-Hour CLIL Module, students will be familiarized with the algebraic language and they will be prepared to construct and solve linear equations in the next lessons. Students will discover algebraic language in everyday life.

  

 

CONTEXT:

This 2-Hour CLIL Module is prepared for 12-13-year-old students who study 1st ESO and are immersed in a plurilingual program.

Last course they studied two different subjects in English and their current level of English is B1.

 

 

LANGUAGE AIMS:

 

 

FIRST LESSON (55 minutes):

This lesson (first point of the unit:1. INTRODUCTION TO ALGEBRA) introduce students the concept of Algebra and its language. Students, through examples, will learn that equations are present in everyday life and are useful in problem solving.

The scheme followed for this initial lesson should be:

- INTRODUCTION TO ALGEBRA THROUGH A LISTENING AND SPEAKING TASK (for all the class): Do you know what is the origin of the word Algebra? In Egyptian “aha”  means unknown quantity. What do you think they needed it for? Can we use algebra in our daily life? When? Give some examples.

Then, watch the following video about the origins of Algebra:

- GO OVER ANY QUESTIONS OR PROBLEMS ABOUT THE VIDEO

- LEARN ABOUT VARIABLES: Why we need variables? How many letters can use?

- LEARN ABOUT ALGEBRAIC LANGUAGE VS ENGLISH LANGUAGE: Work through some simple examples. Learn vocabulary.

- TASK 1: Translate into algebraic language (activities 1 and 2 of worksheet prepared by the teacher).

- WORK THROUGH A VOCABULARY TASK (in groups of 4): You have to match the English expressions with the algebraic expressions. There are two cards which do not match with any other. Find these two cards and write on the back of the algebraic card its translation into English, and on the back of the English card its translation into algebraic language.

A number plus seven equals zero

The difference between two numbers

The product of two numbers

A number divided by five equals minus three

Four minus a cubed number

The square root of the double of a number equals one point five

One plus three multiplied by a number equals ten

The sum of two numbers halved

The sum of two numbers squared

The inverse of a number

A number to the power of five equals four

The quotient of two numbers

 

A squared number equals nine

 

  

 - WORK THROUGH AN OPTIONAL VOCABULARY TASK (in groups of 4): Crossword prepared by the teacher.

 

 

SECOND LESSON (55 minutes):

- REVIEW FROM YESTERDAY: Differences between everyday language and algebraic language.

- WORK THROUGH A LISTENING AND COMPREHENSION TASK (individually): Listen to your teacher reading the following sentences. Write a numerical expression for each one:

a) Twice a number minus four equals minus five

b) Minus five plus three times a number is seven

c) Half a number plus six equals fifteen

d) Seven times a number plus minus one is zero

e) Two times a number minus its half equals ten

- LEARN ABOUT Algebraic Expressions: Introduce the second point of the unit 2. ALGEBRAIC EXPRESSIONS. Students will learn what an algebraic expression is and how to evaluate them.

- TASK 1: Calculate the value of some expressions (activities 3 and 4 of worksheet prepared by the teacher).

- TASK 2: Algebraic Magic Square: Write the values of the cells if x = 2. Then, check if it is a magic square and find the magic number.

- LEARN ABOUT MONOMIALS: Introduce the third point of the unit 3. MONOMIALS. Students will learn what is a monomial and its elements (coefficient, literal part, degree). Study all together through this diagram:

 

- TASK 3: Find which of the following expressions are monomials; if they are, determine their coefficient, literal part and variables:

 - TASK 4: Activities about monomials (activities 5 and 6 of worksheet prepared by the teacher).

 - TASK 5: Quiz about the degree of monomials: http://www.softschools.com/quizzes/algebra/degree_of_monomial/quiz4321.html

 

 

ASSESSMENT:

Students should hand over the activities at the end of the two lessons. The teacher will observe students and will pay attention to the use of L2.

Clilstore ActivitiesCrosswordCrossword - definitions

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