Understanding Decimal Fractions: Summary: Understanding Decimal Fractions
This clip summarizes the "Understanding Decimal Fractions" lesson, including use of the decimal point "to signal the units place of a number and then continue with digits to the right of the decimal point, signifying tenths, hundreds and so on." The...
Understanding Decimal Fractions: Exponential Notation
This clip helps students better understand decimals and the power of 10 by using exponential notation to explain the relationship between the decimal point and the numbers that come before or after it.
Understanding Decimal Fractions: Converting Decimals to Fractions and Fractions to Decimals
This clip explains that, "
.changing a decimal to a fraction or a mixed number isn't much trouble," then proceeds to illustrate that statement with examples. The clip adds that the fraction may be (but doesn't have to be) reduced to the lowest term...
Understanding Decimal Fractions: Reading Decimal Fractions: Using Fractions
This clip explains how to read and say decimals using fractions. It includes an example in which two fractions with different denominators are added. Their sum is expressed with their common denominator in the fraction that results.
Understanding Decimal Fractions: Why Use Decimal Fractions?
This clip explains that we work with decimal fractions because, "
our way of writing numbers depends on the number ten, so sticking with powers of 10 makes the arithmetic very easy."
Understanding Decimal Fractions: Zeros to the Right of the Decimal
This clip explains that adding extra zeros following a number or numbers to the right of a decimal point does not change the value of the decimal.
Understanding Decimal Fractions: Reading Decimal Fractions: Using Words
This clip explains how to read and say decimals using words. It makes the point that the word "and" is only used to indicate the position of the decimal point.