W
Walter Kissach
その他by Walter Kissach
20/20 Fraction Basics5.0
A power learning aid combining Practice, Coaching Calculators and Guides to help students master addition, subtraction, multiplication, division and comparison of fractions.
Fraction addition and subtraction
- improper fraction method
- mixed number method
- stacked and line format
Fraction multipインストール
20/20 Primes and Factor Trees5.0
A power learning aid combines Coaching Calculators and Guides to help students master prime factorization, LCM and GCD.
Prime factorization :
- Prime factorization by factor trees
LCM or Least Common Multiple :
- LCM by prime factorization
- LCM by listing multiples
GCD or Greatest Common Diviインストール
Quadratic Equations3.0
A power learning aid combining Practice, Coaching Calculators and Guides to help students master the solving of quadratic equations.
Coaching Calculators solve quadratic equations by :
- completing the square
- quadratic formula
- factoring
Students learn quickly by working with the calculator anインストール
20/20 Function Domains2.3
A power learning aid combines Coaching Calculators and Guides to help students find the domains of simple rational functions and radical functions.
The Coaching Calculator covers rational functions such as :
f(x) = (3x + 6)/9
f(x) = (x² - 4)/(3x + 6)
f(x) = (x² - 9)/(2x² + 4x - 6)
and radicaインストール
20/20 Radical Equations2.3
A power learning aid combines Practice, Coaching Calculators and Guides to help students master the solving of radical equations.
Practice and Coaching Calculators cover equations such as :
6√(x ) = 3
3√(2x - 1) = 1
√(x + 28) = x - 2
2√(5 + 3x) = 6x - 4
√(9 − 2x) − √(x) = -1
√(x) + √(x − 5) = 5
Tインストール
Even and Odd Polynomials2.0
A powerful learning aid to help students prove algebraically whether a polynomial function is even, odd, both or neither.
An interactive Coaching Calculator and Guide combine to speed the learning process.
The Coaching Calculator covers functions such as :
f(x) = 3x + 5
f(x) = 2x² - 2x + 8
f(xインストール
20/20 Straight Line Equations2.0
A power learning aid combining Practice, Coaching Calculators, Coaching Videos and Guide to help students master finding slopes and equations of straight lines.
Coaching Calculators :
- finding slope given two points
- finding equation given a point and slope
- finding equation given two points
インストール
Circles and Equations1.0
A power learning aid combines Coaching Calculator, Practice and Guide to help students master finding the center and radius of a circle by completing the square.
Develop skills with the Coaching Calculator as you find the center and radius of a circle step by step,
- Taking constant term to rightインストール
Quadratic Factoring1.0
A power learning aid combining Guides, Practice and Coaching Calculators to help students master factoring of quadratic trinomials.
The Box or Grid Method factors harder trinomials such as 3x² + 7x + 4, but also handles simple cases.
It's similar to factoring by Grouping or the AC method, but manyインストール
20/20 Linear Equations1.0
A power learning aid combines Coaching Calculators, Practice and Guide to help students master linear equations.
The Coaching Calculators focus on one-step, two-step and multi-step linear equations as well as those containing parentheses, decimals and fractions :
one-step : x − 2 = 3 , x/7 インストール
Quadratic Inequalities1.0
A power learning aid combining Practice, Coaching Calculators and Guides to help students master the solving of quadratic inequalities by sketching associated graphs.
Coaching Calculators cover :
Solving quadratic inequalities
- by sketching associated graph
The Guide covers :
- Writing in gインストール
Simultaneous Linear Equations1.0
A power learning aid combining Practice, Coaching Calculators and Guides to take you step-by-step through the solving of a pair of simultaneous linear equations.
The app features elimination by Addition, by Addition/Subtraction and substitution methods.
Coefficients can be nonzero integers from -9インストール
math with flair-
A powerful learning aid combining Practice modules, Coaching Calculators and Guides.
Factorizing quadratic expressions :
- Grid or Box method
- Grouping or AC method
- Guess and Check method
- Difference of Squares
Solving quadratic equations :
- factorization
- quadratic formula
- completing thインストール
School Math for Mom and Dad-
A power learning aid using Coaching Calculators to help moms, dads and kids master modern school methods for addition, subtraction, multiplication and division of numbers..
Modern number methods :
Addition
- Column
- Partial Sums (R to L and L to R)
- Standard (traditional)
Subtraction
- Count Upインストール
20/20 Linear Inequalities-
A power learning aid combines Coaching Calculators, Practice and Guide to help students master linear inequalities.
The Coaching Calculators focus on one-step, two-step and multi-step linear inequalities as well as those containing parentheses, decimals and fractions :
one-step : x − 2 ≤ 3 インストール
20/20 Absolute Value-
A power learning aid combines Guides, Practice and Coaching Calculators to help students master absolute value equations and inequalities.
Students learn quickly working with Practice and Coaching Calculators to review each step of the solution process.
Equations such as :
|x| = 4
|7 - x| = 8
3|インストール
Eliminate Denominator Radicals-
A power learning aid combining Practice, Coaching Calculators and Guide to help students master the elimination of radicals from the denominator of expressions (rationalization).
rationalizing :
- 8/√20
- 6/(5√20)
- 6/(4 − √2)
- 10/(2 √50 + 5)
- 3/(4√3 − 3√2)
- 12/(4√18 − 3√48)
Examples highlightインストール
20/20 Radical Simplification-
A power learning aid combining Practice, Coaching Calculators and Guides to help students master the simplification of radicals.
Simplifying square roots, cube roots up to sixth roots by :
- inspection (perfect squares, cubes and so on)
- factor trees
- prime factorization
Examples highlight anインストール
20/20 Rational Expressions-
A power learning aid combines Guides, Practice and Coaching Calculators to help students master rational expression or rational fraction simplification and rational equation solving.
Rational expression Practice and Coaching Calculators take you step-by-step through the simplification of expressionインストール
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