• Math questions with free videos showing you how to get the right answer
  • Easy to use - we believe learning and practicing math should be as simple as possible
  • Test practice questions to prepare you for the big day
  • 100% Free

...or get ready by downloading kjaro graph paper

The kjaro philosophy

Math doesn't have to be complicated.

Here's our simple concept:

  1. Find the area you're having trouble with
  2. Try a question or two
  3. Watch video walk-throughs to check your work
  4. Repeat

Visit regularly and work at your own pace to stay on top of what's covered in class. Then drop in for some last-minute studying before test day.

Try it out: kjaro could be the edge you need for that next test or exam!

Dear Math Teachers and Students,

Kjaro was successfully used to assist with independent study in a classroom pilot project for a summer program.

Kjaro is intended to complement your classroom lessons as a homework and study aid.

We want to hear from you! Send us your comments. Please contact us.

What subjects does kjaro cover?

Great question! Click on a button below to see the list of math topics covered in that grade

Grade 10Grade 11
  • Linear Systems (Grade 10)
  • Linear Systems (Solve by Graphing)
  • Linear Systems (Special Case)
  • Linear Systems (Substitution)
  • Linear Systems (Elimination)
  • Linear Systems (Fraction and Decimals)
  • Linear Systems (General Word Problems)
  • Linear Systems (Investment Problems)
  • Linear Systems (Mixture Problems)
  • Linear Systems (Money Problems)
  • Linear Systems DST (Two Part Trip)
  • Linear Systems DST (Current \ Wind)
  • Linear Systems DST (Two Different Times)
  • Analytic Geometry (Grade 10)
  • Length of a Line Segment (Analytic Geometry)
  • Midpoint of a Line Segment
  • Equation of a Circle
  • Slope of a Line Segment
  • Equations of Lines (Part 1)
  • x-intercept, y-intercept & Slope (Parallel and Perpendicular)
  • Equations of Lines (Part 2)
  • Equations of Lines (Medians and Centroids)
  • Equations of Lines (Altitudes and Orthocentres)
  • Equations of Lines (Perpendicular / Right Bisectors and Circumcentre)
  • Distance from a Point to a Line
  • Polynomials (Grade 10)
  • Adding and Subtracting Polynomials
  • Multiplying Monomials (Exponent Laws)
  • Dividing Monomials (Exponent Laws)
  • Multiplying (Monomial $\times$ Polynomial)
  • Expanding and Simplifying Polynomial Expressions (Part 1)
  • Multiplying Binomials (FOIL)
  • Special Products (Squaring Binomials)
  • Special Products (Product of Sum and Difference)
  • Expanding and Simplifying Polynomial Expressions (Part 2)
  • Factoring (Grade 10) (Grade 11)
  • Common Factoring
  • Binomial Common Factoring
  • Factoring by Grouping (Part 1)
  • Trinomial Factoring (a=1)
  • Trinomial Factoring (a$\neq$1) (Magic Box)
  • Factoring Perfect Square Trinomials
  • Factoring Difference of Squares
  • Factoring by Grouping (Part 2)
  • Quadratic Functions (Grade 10)
  • Graphing Quadratic Functions (Vertex Form)
  • Quadratic Functions (Word Problems Part 1)
  • Quadratic Functions (Complete the Square)
  • Quadratic Functions (Word Problems Part 2)
  • Quadratic Equations (Grade 10)
  • Quadratic Equations (Solve by Factoring)
  • Quadratic Equations (Word Problems Part 1)
  • Quadratic Equations (Solve using the Quadratic Formula)
  • Quadratic Equations (Word Problems Part 2)
  • Trigonometry (Grade 10)
  • Similar Triangles
  • Using Your Calculator
  • sohcahtoa $(S=\frac{O}{H},\;C=\frac{A}{H},\;T=\frac{O}{A})$
  • Word problems (Part 1) (Trigonometry)
  • Solving Triangles (Advanced Trigonometry) (Two Triangles)
  • Sine Law $\frac{a}{\sin A}=\frac{b}{\sin B}=\frac{c}{\sin C}$ or $\frac{\sin A}{a}=\frac{\sin B}{b}=\frac{sin C}{c}$
  • Cosine Law (Unknown side - SAS) $a^2=b^2+c^2-2(b)(c)(\cos A)$
  • Cosine Law (Unknown Angle - SSS) $\cos A=\frac{b^2+c^2-a^2}{2bc}$
  • Exponent Laws (Grade 11)
  • Exponent Law for Multiplication
  • Exponent Law for Division
  • Zero Exponent Property
  • Negative Exponents
  • Power Law and Mixed Exponent Practice
  • Advanced Exponent Work
  • Rational (Fraction) Exponents (Part 1)
  • Rational (Fraction) Exponents (Part 2)
  • Solving Exponential Equations (Part 1)
  • Solving Exponential Equations (Part 2)
  • Exponential Growth (Doubling Time) $A_{t}=A_{0}(2)^{\frac{t}{d}}$
  • Exponential Growth (% increase/appreciation) $A_{t}=A_{0}(1+i)^n$
  • Exponential Decay (Half-Life) $A_t=A_0(\frac{1}{2})^\frac{t}{h}$
  • Exponential Decay (% decrease/depreciation) $A_t=A_0(1-i)^n$
  • Rational Expressions (Grade 11)
  • Simplifying Polynomials Review
  • Factoring Review
  • Multiplying and Dividing Rational Expressions
  • Adding and Subtracting Rational Expressions (Part 1)
  • Adding and Subtracting Rational Expressions (Part 2)
  • Sequences and Series (Grade 11)
  • Recursion Formulas (Sequences)
  • Arithmetic Sequences $t_n=a+(n-1)d$
  • Geometric Sequences $t_n=a(r)^{n-1}$
  • Arithmetic Series $S_n=\frac{n}{2}[2a+(n-1)d]$ or $S_n=\frac{n}{2}(a+t_n)$
  • Geometric Series $S_n=\frac{a(r^n-1)}{r-1}$
  • Financial Math (Grade 11)
  • Financial Math - Simple Interest ($I=Prt$)
  • Financial Math - Compound Interest - Amount / Present value $A=P(1+\frac{i}{c})^{(tc)}$
  • Amount of an Annuity (Annuity "IN") $A=\frac{R[(1+\frac{i}{c})^{tc}-1]}{(\frac{i}{c})}$
  • Present Value of an Annuity (Annuity "OUT") $P=\frac{R[1-(1+\frac{i}{c})^{-tc}]}{(\frac{i}{c})}$
  • Radicals (Grade 11)
  • Radicals (Part 1) (Adding and Subtracting)
  • Radicals (Part 2) (Multiplying and Dividing)
  • Radicals (Part 3) (Complex Numbers - Imaginary Numbers "$i$")
  • Radicals (Part 4) (Rationalizing Denominators) (Radicals and Complex) (Conjugates)
  • Quadratic Equations (Grade 11) (Grade 10)
  • Solving Quadratic Equations (Quadratic Formula, Radicals and Complex / Imaginary Roots)
  • Solving Quadratic Equations (Word Problems)
  • Linear - Quadratic Systems
  • The Discriminant ($b^2-4ac$) (Nature/Number of Roots)
  • Solving for Maximum / Minimum (Complete the Square)
  • Solving for Maximum / Minimum (Word Problems)
  • Functions and Graphing Transformations (Grade 11)
  • Function Notation [ $f(x), g(x)$ ] (Functions)
  • Inverse of a Function ( $f^{-1}(x)$ )
  • Graphing $y=|x|$ and its Transformations
  • Graphing $y=\sqrt{x}$ and its Transformations
  • Graphing $y=\frac{1}{x}$ and its Transformations
  • Trigonometry (Grade 11)
  • Radians $\Leftrightarrow$ Degrees Conversions (Trigonometry)
  • Unit Circle, CAST, Quadrants, Exact Values and Special Triangles (Part 1)
  • Unit Circle, CAST, Quadrants, Exact Values and Special Triangles (Part 2)
  • Solving Trigonometric Equations - Degrees (Part 1)
  • Solving Trigonometric Equations - Degrees (Part 2)
  • Solving Trigonometric Equations - Radians (Part 1)
  • Solving Trigonometric Equations - Radians (Part 2)
  • Trigonometric Identities ( Trig Identities )
  • Solving Trigonometric Equations with Identities - Degrees and Radians
  • Graphing Trigonometric Functions - Degrees
  • Graphing Trigonometric Functions - Radians
  • Finding the Equations of Trigonometric Functions - Degrees (Part 1)
  • Finding the Equations of Trigonometric Functions - Degrees (Part 2)
  • Finding the Equations of Trigonometric Functions - Radians (Part 1)
  • Finding the Equations of Trigonometric Functions - Radians (Part 2)
  • Finding the Equations of Trigonometric Functions - Word Problems (Degrees)
  • Finding the Equations of Trigonometric Functions - Word Problems (Radians)