Course Description

INTRODUCTORY ALGEBRA is the first or beginning course of mathematics in high school level. It is the introduction of algebra that serves as the foundation to all the courses of mathematics to be encountered in next years of high school. This will develop the skills applied to problem solving. The discussions focus on set theory and number theory, algebraic expressions and polynomials, linear equations, rectangular coordinate system, and translating word problems to mathematical expressions as applied to real-life situations.


Sunday, July 10, 2011

Lesson 2 MEASURING LENGTHS


CENTIPEDE DIAGRAM











This 'centipede' diagram is used to convert metric to metric units.

How to use the 'centipede' diagram?

Given: 13.2 m = ____ km

known: 13.2 m
unknown: ____ km

STEP 1: Identify the location of the decimal point on the known measurement.
The known measurement is 13.2 m. The decimal point is placed between the numbers 3 and 2.


STEP 2: Referring to the 'centipede' diagram, count the number of curve lines from the known measurement to the unknown measurement. The number of curve lines
serves as decimal places.
There are 3 curve lines from m to km. (3 decimal place)



STEP 3: Determine the direction in counting the curve lines -- left or right. The direction is to the LEFT.

STEP 4: Having these ideas from STEP 1 to 3. You will be able to convert the given measurements.
  • STEP 1: decimal point is between 3 and 2
  • STEP 2: 3 curve lines
  • STEP 3: left
Therefore, from the location of the decimal point between numbers 3 and 2, you need to move to three decimal places to the left to convert the given.





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