Lesson #1 - The Decimal Concept and Whole Numbers. Introduces the basis of the number system,
place value, and the uses of whole numbers and decimals. Explains
the concept of decimal fractions and changing fractions to decimals.
Graphics show whole numbers to billion and decimals to billionth.
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Lesson #2 - The Decimal Concept and Decimal Places.
Tutorial with graphics and concept
checks covers uses of decimal places, reading decimals, and writing
decimals. Includes decimal places to millionth. Teaches how to
distinguish the location of decimal places and whole number places.
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Lesson #3 - Comparing Decimals.
Tutorial with graphics and concept checks covers: writing fractions
as decimals to make comparison easier; adding zeros to decimals
to make comparison easier; equivalent decimal fractions; mixed
decimals; whole numbers as decimals; and the symbols of comparison.
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Lesson #4 - Rounding Decimals. Tutorial
with graphics and concept checks on rules for rounding decimals
- - dollars and cents and through hundred thousandths as a rounding
place. Makes use of number lines. Reviews from an earlier lesson
the names and locations of whole number places and decimal places.
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Lesson #5 - Adding Decimals. Tutorial
with graphics and concept checks on rules for adding decimals,
focuses on lining-up the decimal point correctly. Covers use of
zeros for clarity and for holding the one’s place. Teaches
addition of decimals in the contexts of relating decimals to fractions,
estimation, and critical-thinking problems. Reviews from an earlier
lesson the names and locations of whole number places and decimal
places.
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Lesson #6 - Subtracting Decimals.
Tutorial uses graphics and concept checks to teach rules for subtracting
decimals and lining-up the decimal point correctly. Provides ample
examples. Includes concept of signed numbers. Teaches subtraction
of decimals in the contexts of relating decimals to fractions,
estimation, and critical-thinking problems. Has options to review
from earlier lessons.
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Lesson #7 - Multiplying Decimals.
Teaches rules for multiplying decimals, focuses on placing the
decimal point correctly, and provides ample examples. Includes
concept of signed numbers and multiplying using the power of ten.
Teaches multiplication of decimals in the contexts of relating
decimals to fractions, estimation, and critical-thinking problems.
Has options to review from earlier lessons.
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Lesson #8 - Dividing Decimals.
Teaches rules for dividing decimals and placing the decimal point
correctly. Includes concept of signed numbers and dividing using
the power of ten. Teaches division of decimals in the contexts
of relating decimals to fractions, estimation, and critical-thinking
problems. Shows decimal division as a means to find the decimal
part one number is to another, and to find a number when you know
the decimal part -- precursors to percentage. Has options to review
from earlier lessons.
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Lesson #9 - Changing Decimals to Percents.
This extensive tutorial explains placing or removing the decimal
point correctly before adding a percent sign, and provides ample
graphics as examples. Includes decimals with other than two decimal
places. Shows conversion of decimals to percents as a process
of multiplying by 100. The content of this tutorial is repeated
as the third lesson in the course on percents.
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Achievement Prep Decimals COMPLETE COURSE
(Decimals 1 - 9) Provides over 23 hours of pre-tests, tutorials,
and post tests.
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