Tools
Divisibility Rules
Math 6/7
Rounding
Whole numbers and decimals
Dividing by Zero
Why it's impossible!
Scientific Notation
How it works ... Math 9
Order of Operations
Math 8/9
Precision and Accuracy
What's the difference?
Analogies in Math Class
Why teachers make problems about watermelons!
Numbers
Prime Numbers
An explanation, and a prime number checker! ... Math 6/7
Prime Factors and Factor Trees
Math 6/7
Greatest Common Factor
Math 6/7
Lowest Common Multiple
Math 6/7
One Million
Just how big is it?... Math 5-7
Big and Small Numbers
with names ... Math 6/7/8/9
Integers
An introduction ... Math 6
Googols and Googolplexes
Really big numbers!
Tetration
Really really really big numbers!
Infinity
What is it? Did you know there is more than one? All grades
Absolute Value
Math 6/7/8/9
Learn About Pi
Pi ... where does it come from? ... Math 6/7/8
Pi to 4000 decimal places
Why not!? ... Math 6/7/8
Sets of Numbers
Whole numbers, integers ... all the way to
complex numbers and unicorns ... Math 9/10C
Build a Fraction
Math 5/6/7
Match Equivalent Fractions
Math 5/6
Equivalent Fractions & Reducing a Fraction
Math 6/7
Adding & Subtracting Fractions
Math 6/7
Changing Decimals to Fractions
All types of decimals ... Math 7/8
Finding a Percent of a Number
Multiple ways ... Math 7/8/9
Magic Square
Can you solve it?
Algebra
Introduction to Algebra
Variables and expressions ... Math 7/8
Simplifying 'Like' Terms
... Math 7/8
Solving Linear Equations
A complete review of the Math 9 Unit
Pythagorean Theorem
...Math 8/9
Powers and Exponents
Math 9, Math 10C
Powers Practice
Math 9, Math 10C
Fun
Tales of a Retired Math Teacher
A math superhero saves the day.
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Measurement
How Formulas Work
Math 6/7
Area of a Rectangle
Math 5/6
Area of Parallelograms & Triangles
Math 6/7
Circumference of a Circle
Math 7/8
Area of a Circle
Area formula and where it comes from ... Math 7/8
Area of a Circle Problems
... Math 7/8
The Pizza Problem
... Math 7/8
Cylinder Volume & Surface Area
... Math 8/9
Surface Area of Prisms
Math 8/9
Volume of a Rectangular Prism
Math 6/7
Triangular Prism Volume & Surface Area
... Math 9
Sphere Volume & Surface Area
... Math 9
What's the Volume of One Wedge
of a Chocolate Orange
... Math 9 holiday problem
Area Formulas Quiz
... Math 7/8
Volume Formulas Quiz
... Math 9
Geometry
Angles
Naming and measuring angles ... Math 6
Angles in a Triangle
Do they always add to 180 degrees? ... Math 8
Congruent Triangles
The shortcuts, and practice problems
Similar Triangles
Definitions, and using them to solve problems
Complementary & Supplementary Angles
Definitions, examples, and practice problems ... Math 6
Polygons
Calculating angles and number of diagonals ... Math 8
Triangles
All the names, and a quiz ... Math 6/7
Quadrilaterals
All the names ... Math 7/8
Name the Polygon
A self-checking quiz ... Math 7/8
Parallel Line Facts
All the equal and supplementary angles ... Math 8
Plotting Points
Plotting points on an x-y graph ... Math 7
The Five Regular Polyhedra
There are just five!
Symmetry
See some examples ... Math 4-9
Scale Factors
And why spiders can't be elephant-sized ... Math 8
Dilatations
Enlargements and reductions ... Math 9
The Moebius Strip
A 3D object with just one side!
Probability and Statistics
Bar Graphs and Histograms
What's the difference? ... Math 8
Simple Probability
Theoretical vs Experimental Probability ... Math 8
The Class Average
Three ways to calculate it. Not all are always useful ... Math 7/8
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