App Shopper: AFactorTree (Education)

App Activity

Jan 09 '11	Version 2.2
Oct 13 '10	Version 2.1
Dec 18 '09	Version 2.0
Sep 17 '09	Version 1.4
Feb 21 '09	Version 1.3
Jan 14 '09	Version 1.2
Dec 30 '08	Version 1.1
Dec 18 '08	New App: Free, v1.0

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AFactorTree

iOS iPhone

AFactorTree is a combined interactive Coaching Calculator and Guide to prime factorization and its use in finding the Least Common Multiple and Greatest Common Divisor or Greatest Common Factor.

The Coaching Calculator and Guide include :

- Building factor trees
- Prime factorization
- Finding the LCM
- Finding the GCD or GCF

Examples highlight and simplify hard to understand processes.

The app encourages flexible thinking by presenting various approaches to the subject matter.

AFactorTree is a companion to the Fraction Series comprising ACoachCalc Fraction Calculator, BasicFrac Fractions, MulDivFrac Fractions, CompareFrac Fractions and ConvertFrac Fractions.

All apps have the same series of fraction Coaching Calculators.

- Addition by multiplying denominator method
- Addition using the Least Common Denominator

- Subtraction by multiplying denominator method
- Subtraction using the Least Common Denominator

- Multiplication
- Multiplication with cross canceling

- Division
- Division with cross canceling

- Comparison by multiplying denominator method
- Comparison by Least Common Denominator method
- Comparison by cross multiplication method

- Conversion of mixed numbers to improper fractions
- Conversion of improper fractions to mixed numbers

- Equivalent fractions using the LCD
- Reduction using the GCD (GCF)

- Prime factorization by a factor tree

- Finding the LCM by prime factorization
- Finding the LCM by listing multiples

- Finding the GCD by prime factorization
- Finding the GCD (GCF) by listing divisors

The BasicFrac Guide looks in depth at addition and subtraction.

The MulDivFrac Guide looks in depth at multiplication and division.

The CompareFrac Guide looks in depth at comparison.

The ConvertFrac Guide looks in depth at conversion between fractions, decimals and percents.

ACoachCalc Fraction Calculator has a mini-Guide and additional Coaching Calculators and mini-Guide covering one, two and multi-step linear equations.