Chap 4: Saying it algebraically

Posted by Loh Kwai Yin

more about writing algebraic expressions.

http://www.quia.com/mc/319817.html

STATISTICS (introduction)

STATISTICS

Definition
NOUN:
(used with a sing. verb) The mathematics of the collection, organization, and interpretation of numerical data, especially the analysis of population characteristics by inference from sampling.
(used with a pl. verb) Numerical data.

Your Task:
Identify samples of statistics or visual representation of data / information from the internet using Singapore's context (refer to example). This could be in the form of charts, tables, graphs or other creative representation. Post your link on the wall.

Algebra: Equation

Introduction to Algebraic Equation

Activity 1:
Watch the movie, X finds out his value, and answer the following questions.

Given the following:
2x + 4 + x = 8 + 2(3 + x) -3

1. Is this an expression or an equation? Why?
2. What is the variable?
3. Why is an equation like a see-saw?
4. Simplify 2x + 4 + x Answer: ___________________
5. Simplify 8 + 2(3 + x) -3 Answer: ___________________
6. Solve the above for x Answer: x = ________________

Activity 2:

The objective of the activity is to use concrete representation to find the unknown variable. Algebraic reasoning is used to solve or find the numerical value of the variable.

• Levels 1 and 2 contain two scales.
• Level 3 is more difficult and has three scales.
• Your goal is to determine the weight of one or more of the objects.

Click HERE to attempt.

Source: Math Playground (retrieved: 14 March 2010)

http://www.mathplayground.com/Algebraic_Reasoning.html

ALGEBRA: INTRODUCTION

ALGEBRA: Introduction
Objective
to have a better understanding of the historical background of Algebra and the fundamental nomenclature used in Algebra.
Task
In groups of 4s please complete the 4-stages of Algebra:introduction shown below. In each group appoint a scriber who will post the group's findings on-line. Remember to quote and check reliability of sources.

Stage 1:
World of Mathematics on Abu Ja'far Muhammad ibn Musa Al-Khwarizmi
Who is Abu Ja'far Muhammad ibn Musa Al-Khwarizmi ?
Identify his contributions in Mathematics and Sciences.



Stage 2:
Abu Ja'far Muhammad ibn Musa Al-Khwarizmi was the author of a book entitled Al-jabr w'al muqabala (written in 830 AD) that gave the name al-jabr to the branch of mathematics that is now known by its modern spelling as algebra.

What is Algebra?
[reference: click on formula below]

Construct a simple mind map to illustrate this and post your mind map or link on-line.

You may refer to sample for ideas.

Stage 3:
Use the website or mathematics dictionary and find the definition of the following. Use diagrams or examples to illustrate your explanation.

1. variable
2. constant
3. coefficient
4. expression
5. equation

Stage 4:
Watch the following video on Introduction to Algebra and explain the differences between like terms and unlike terms.

LEAP : Mathematics Applied Learning

Please

SST LEAP : Mathematics @ Science Centre 2010

Please post your comments on the following key questions:

1. Identify at least one key learning points from the workshop.

2. Identify the character traits and dispositions you think will be critical in the studies of Mathematics.

3. Through the Mathematics Trail identify at least 1 key areas in Mathematics that could be applied in the real world.

Introduction to Algebra Part 2

Dear 105s,

Please solve the problem below using both the Unitary Model Method and the Algebraic Method.

Look at your solutions. What are some of the similarities and differences between the 2 different methods?

Introduction to Algebra Part 1

Dear 105s,

Please look through the slides before I began with Algebra in the next lesson.