Pre-Algebra Ch. 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| algebra | a branch of mathematics dealing with symbols
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| algebraic expression | an expression that contains sums and/or products of variables and numbers
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| conjecture | an educated guess
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| deductive reasoning | the process of using facts, properties, or rules to justify reasoning or reach valid conclusions
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| coordinate plane or coordinate system | formed by the intersection of two number lines that meet at right angles at their zero points
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| counterexample | an example that shows a conjecture is not true
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| defining a variable | choosing a variable an a quantity for the variable to represent in an equation
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| domain | the set of all x-coordinates from each pair of a relation
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| equation | a mathematical sentence that contains an equal sign
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| evaluate | find the numerical value of an expression
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| graph | a dot at the point that corresponds to an ordered pair on a coordinate plane
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| inductive reasoning | conjecture based on a pattern of examples or past events
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| numerical expression | a combination of numbers and operations such as addition, subtraction, multiplication and division
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| open sentence | an equation that contains a variable
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| order of operations | PEMDAS
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| ordered pair | a pair of numbers used to locate any point on a coordinate plane
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| origin | the point at which the number lines intersect in a coordinate system
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| properties | statements of equality of two or more ratios
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| range | all the y-coordinates from each ordered pairs in a relation
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| relation | a set of ordered pairs
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| scatter plot | a graph that shows the relationship between two sets of data
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| simplify | to write an expression in simpler form
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| solution | a value for the variable that makes an equation true
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| solving the equation | the process of finding a solution to an equation
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| variable | a placeholder for any value
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| x-axis | the horizontal number line which helps to form the coordinate system
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| x-coordinate | the first number of an ordered pair
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| y-axis | the vertical number line which helps to form the coordinate system
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| y-coordinate | the second number of an ordered pair
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Miss Brinkoetter
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