How to Identify the Constant of Proportionality | 7.RP.A.2 💚

The Magic Of Math
The Magic Of Math
49.8 هزار بار بازدید - 3 سال پیش - In this video lesson we
In this video lesson we will learn how to identify the constant of proportionality in a table of x and y values.  We will learn that any x value multiplied by the factor, known as the constant of proportionality, is equal to the corresponding y value.  We will also discover that the constant of proportionality is represented by the variable x.  The constant of proportionality is a ratio of y to x.  We will learn that k=y/x.  We will also learn that the graph of a line represents a proportional relationship IF the line passes through or begins at the origin.  We will identify a point on the line, represent it as an ordered pair, and find the constant of proportionality by writing and simplifying the ratio of the y coordinate to the x coordinate.  Student practice is embedded in the lesson with modeled exemplar solutions.

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00:00 Introduction
00:39 Find the Constant Value in a Table
02:56 Constant of Proportionality
04:12 Facts about the Constant of Proportionality
05:38 Student Practice #1
06:56 Student Practice #2
07:57 Graphs of Proportional Relationships
08:39 Student Practice #3
09:11 Student Practice #4
09:37 Constant of Proportionality from a Graph
11:08 Student Practice #5
11:42 Student Practice #6

CCSS.MATH.CONTENT.7.RP.A.2
Recognize and represent proportional relationships between quantities.
CCSS.MATH.CONTENT.7.RP.A.2.A
Decide whether two quantities are in a proportional relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin.
CCSS.MATH.CONTENT.7.RP.A.2.B
Identify the constant of proportionality (unit rate) in tables, graphs, equations, diagrams, and verbal descriptions of proportional relationships.
3 سال پیش در تاریخ 1400/11/19 منتشر شده است.
49,847 بـار بازدید شده
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