Learning Resource Type

Classroom Resource

Distance Difference

Subject Area

Mathematics

Grade(s)

7

Overview

Using circumference, this video measures the total distance traveled by two carousel riders after the carousel has rotated 10 times. Regents Review materials are designed to help high school students prepare for New York State's Regents exams.

    Mathematics (2019) Grade(s): 7

    MA19.7.20

    Explain the relationships among circumference, diameter, area, and radius of a circle to demonstrate understanding of formulas for the area and circumference of a circle.

    Unpacked Content

    UP:MA19.7.20

    Vocabulary

    • Diameter
    • Radius
    • Circle
    • Area
    • Circumference
    • π

    Knowledge

    Students know:
    • that the ratio of the circumference of a circle and its diameter is always π.
    • The formulas for area and circumference of a circle.

    Skills

    Students are able to:
    • use the formula for area of a circle to solve problems.
    • Use the formula(s) for circumference of a circle to solve problems.
    • Give an informal derivation of the relationship between the circumference and area of a circle.

    Understanding

    Students understand that:
    • area is the number of square units needed to cover a two-dimensional figure.
    • Circumference is the number of linear units needed to surround a circle.
    • The circumference of a circle is related to its diameter (and also its radius).
    Mathematics (2019) Grade(s): 7 - Grade 7 Accelerated

    MA19.7A.36

    Explain the relationships among circumference, diameter, area, and radius of a circle to demonstrate understanding of formulas for the area and circumference of a circle.

    Unpacked Content

    UP:MA19.7A.36

    Vocabulary

    • Diameter
    • Radius
    • Circle
    • Area
    • Circumference
    • π

    Knowledge

    Students know:
    • the ratio of the circumference of a circle and its diameter is always π.
    • The formulas for area and circumference of a circle.

    Skills

    Students are able to:
    • use the formula for area of a circle to solve problems.
    • Use the formula(s) for circumference of a circle to solve problems.
    • Give an informal derivation of the relationship between the circumference and area of a circle.

    Understanding

    Students understand that:
    • area is the number of square units needed to cover a two-dimensional figure.
    • Circumference is the number of linear units needed to surround a circle.
    • The circumference of a circle is related to its diameter (and also its radius).
    Link to Resource

    CR Resource Type

    Audio/Video

    Resource Provider

    PBS
    Accessibility
    License

    License Type

    Custom
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