ALGEBRA AND PATTERING

DEFINITIONS

VARIABLES

• A variable is a letter or symbol that is used in a expression or equation to represent unknown numbers.

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CO-EFFICIENT

• A co-efficient is a number or letter that comes before the variable. You multiple the variable by the co-efficient.

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CONSTANT

• A constant is a whole number that dose not vary.

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EQUATION

• A equation is 2 expressions that are equal to each other connected by a equal sign.

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EXPRESSION

• A expression is made when you perform mathematical operations to variables.

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TERM NUMBER

• A term number is the number that tells you the position of the term in a pattern.

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TERM VALUE

• The value of the term

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VS.

SIMPLIFY VS. EVALUATE

• Simplify: when you make a algebra equation or expression easier.
• Evaluate: when you solve the equation or expression. To do this you need to know what the variables equal.

Simplify

Evaluating

WRITING RULE VS. GENERAL TERM RULE

• A written rule is when you wright out the pattern rule in words from term value to term value.
• General term rule is when you find the rule from term number to term value. (Left to right rule) This would be shown using numbers, variables, exponents and simple math operations usually on a T-chart

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