W
Walter Kissach
더 by Walter Kissach
20/20 Fraction Basics
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 multip설치
20/20 Primes and Factor Trees
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 Divi설치
Quadratic Equations
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 an설치
20/20 Function Domains
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 radica설치
20/20 Radical Equations
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
T설치
Even and Odd Polynomials
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(x설치
20/20 Straight Line Equations
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
설치
Circles and Equations
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
설치
Quadratic Factoring
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 many설치
20/20 Linear Equations
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/7설치
Quadratic Inequalities
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
설치
Simultaneous Linear Equations
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 -9설치
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
설치
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
설치
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 ≤ 3설치
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|설치
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 highlight설치
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 an설치
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 expression설치
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