Competence Standard (SK): 1. To understand the Operation Of Algebraic Form, Relation, function, and linear equation ( Memahami operasi bentuk aljabar, relasi, fungsi dan persamaan linear)

Basic Competence (Kd) : 1.1 Doing Algebraic Operation (Melakukan operasi bentuk aljabar)

Operation of Algebraic Form

- solve the operation of addition, subtraction by like terms or unlike terms

Use algebraic concept in problem solving

Objectives : After learning this chapter, students able to:

In Our daily Life There are many daily problems that can

be solved using the algebraic concept Such as : find of fuel needed by a

motorcycle vehicle to travel a certain distance

Identifying someone’s age Identifying the time needed to cover

certain distance Finding the formula of a pattern and the

price of an item

Manfaat Belajar AljabarAda banyak masalah sehari-hari yang dapat

diselesaikan dengan menggunakan konsep aljabar Seperti:

Menemukan banyaknya bahan bakar yang dibutuhkan oleh kendaraan sepeda motor untuk perjalanan jarak tertentu

Mengidentifikasi umur seseorang

Mengidentifikasi waktu yang dibutuhkan untuk menempuh jarak tertentu

Menemukan rumus /pola untuk harga satuan pada aritmetika sosial

Before continue, let’s remember about : Algebraic form Terms, like terms, unlike terms Variable Coefficient Constant Factor Operation of numbers

1.Consider algebraic form in the following table, and then fill in blank….

BentukAljab

ar

koefisie

n

variab

el

konstant

a

Banyaknya

suku

a. 5a

a. 7xy- y -8

a. 5x-3y+1

And….- Monomial- Binomial- Trinomial- Polynomial

- Let’s check your memories

Find the like terms in the following algebraic forms

Selidiki manakah suku-suku yang sejenis pada bentuk aljabar berikut:

4y + 2x - -5y9 + 3xy – 6 + 5xy + 7 – xy + 3 + 3xy - 23 - + ab - - + 4 + 2

Jangan lupa isi identitas pribadi/ kelompok   Nama : .......................................... Kelas : .......................................... No. Absen : .......................................... Nilai : ..........................................

Remember :“Inch by inch Math is Cinch But Yard by yard that’s so very Hard “(Prof.Dr. Viji, lecture of math at SEAMEO RECSAM Malaysia ).

“The Secret of Success in Life is for a man to be ready for his opportunity when it comes”(Earl Beaconsfield)

llustrations of daily life

count the birds that are in each cage

add the cat is in the cage and the bird is on the outside

Consider the following pictures

Find the solution of following addition

Twoo cats are in a cage

A white hawk is in a cage

Consider the following pictures

how many people and how many goats in each image?

Do you understand about the concept of addition of Algebraic expression ?

Let’s discuss these following problem

Simplify the following algebraic form (algebraic expressions) :

6a -9a8x – 2x + x5 -4x -2 + 7x + 515 + 3 – 5 - 5

Let’s make conclution Syarat operasi penjumlahan dan

pengurangan pada bentuk aljabar adalah : (dan untuk mempermudahnya lakukan….)

Terima Kasih