Chapter 20: Algebra: Explore Negative Numbers and Graphing
Lesson 1: Temperature: Fahrenheit. Objective: To understand Fahrenheit temperature.
Lesson 2: Temperature: Celsius. Objective: To understand Celsius temperature.
Lesson 3: Expore Negative Numbers. Objective: To locate and name negative numbers by using a number line and counting techniques.
Lesson 4: Problem Solving Skill: Make Generalizations. Objective: To solve problems by using the skill make generalizations.
Lesson 5: Explore Inequalities. Objective: To find whole numbers that make an inequality true.
Lesson 6: Use a Coordinate Grid. Objective: To locate points on a coordinate grid.
Vocabulary: zero, number line, degrees Fahrenheit, degrees Celsius, negative numbers, positive numbers, opposites, inequality, ordered pair, x-axis, y-axis, x-coordinate, y-coordinate
number line: a line with equally-spaced marks named by numbers
degrees Fahrenheit: a standard unit for measuring temperature in the customary system
degrees Celsius: a standard unit for measuring temperature in the metric system
negative numbers: all the numbers to the left of zero on the number line
positive numbers: all the numbers to the right of zero on a number line
opposites: integers that are the same distance, but in opposite directions, from zero on a number line
inequality: a number sentence that shows two quantities are not equal
ordered pair: a pair of numbers used to locate a point on a coordinate grid
x-axis: the horizontal line on a coordinate grid
y-axis: the vertical line on a coordinate grid
x-coordinate: the first number in an ordered pair that tells the distance to move horizontally
y-coordinate: the second number in an ordered pair that tells the distance to move vertically
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