April 17, 2021, 5:05:00 PM
Convert between fractions, decimals, and percentages.
Describe the relationship between fractions, decimals, and percentages.
Identify the fractional equivalent of a percent.
Percent, Fraction, Numerator, Denominator
- Reviewed and discussed the relationship of fractions to division.
- Listed words with "cent," e.g., century, centimeter, and how they related to 100.
- Learned that "percent" can be thought of "for every hundred," or "out of 100," which makes converting 43% "43 out of 100," and can be written as the fraction 43/100.
- Converted fractions into percentages.
- For fractions with a denominator other than 100, use multiplication and/or division to find an equivalent fraction with a denominator of 100 to find its percent.
Convert the given fractions into percentages using multiplication and/or division where applicable.
When working with percent, what is the magic number you want to work with? 100
- This denominator is tricky because it is not 100. How can we turn this denominator into 100? Use multiplication or division. Sometimes we need to do both.
Techniques and Formulas
Understand that circles have specific measurements.
Understand circumference is the distance around the edge of a circle.
Understand radius is the distance from the center point to the edge of a circle.
Understand diameter is the distance from one side of the edge of a circle to the other.
Measure the diameter of given circles.
Understand the relationship between the radius and the diameter of a circle (use the radius to find the diameter or the diameter to find the radius).
Radius, Diameter, Circumference, Cord, Center Point
- Discussed properties of circles, e.g., 2-D, no sides.
- Learned new vocabulary terms that are differnet measures of a circle, i.e., radius, diameter, circumference, and cord.
- Discovered the relationship between a circle's diameter and radius.
- Used a geoboard and bands to illustrate and represent the vocabulary terms.
- Measured various circular objects to find its radius, diameter, and circumference.
- Determined that a circle's diameter is its longest cord.
Search your home for different round objects. Make a table and lust the items to compare and keep track of the radius, diameter, and circumference.
- Review vocabulary terms: radius, diameter, circumference, cord.
- What is the relationship between radius and diameter? How can you use one measure to find the other?