| Lesson:
|
Concerns: |
| An Easier way to learn Long Division |
division |
| Multiplying
and Dividing Fractions |
multiplication,
division, fractions |
| prime
factorization |
how
numbers work |
| The
"Pretty Good Guide" to prime factorization |
|
| Why
should we learn prime factorization? |
Mathematical
philosophy, how numbers work, motivation to learn |
| products
of odd or even integers |
how
numbers work |
|
squaring two 2-digit numbers which both end in 5 |
Speed-math |
| Triangular
Numbers |
Finding
the sum of 1+2+3+4+5+6+7......+n, how numbers work |
| What's
the Deal with the Laws in Mathematics? |
(A
bit of "Legal Advice"), math philosophy |
| The
Commutative Law of Addition |
Why
it Doesn't Matter Which Column you Add First
|
| Distributive
law |
How
numbers work |
| An
Interactive Lesson about Infinity |
just
weird |
|
Can you create
a 5-cell x 5-cell magic square whose sums are 130, using numbers between
2 and 50? |
Magic
Squares, recreational math, problem solving |
| Can
you make a 4-cell x 4-cell magic square, in which each of the numbers is
a multiple of 5, using the numbers 5 - 80 (inclusive)? The sum of each of
the columns, rows and diagonals must be 170. |
Magic
Squares, recreational math, problem solving |
| Why
does 2 + 2 = 4? |
Mathematical
philosophy, how numbers work |
Is
0.999... really equal to 1, and if so, why? |
how
numbers work |
Why
do we carry or regroup in math? |
how
numbers work |
How
do you do multiplication from left to right?
|
speed-math,
arithmetic |
| 2
to the power of x +x = 6 |
algebra |
About
our number-system
|
how
numbers work |
How
do you find the area of a square?
|
geometry |
| I
need help understanding how word problems work |
word
problems |
How
do you remember which is the greater-than sign and which is the less-than
sign?
|
Algebra,
mnemonics |
| OK,
so why can't you divide by zero? |
how
numbers work |
| What
is the origin of zero? |
Math
History |
| What
are tens complements and how do I use them? |
Arithmetic,
Speedmath, How numbers work |
| names
of large and small numbers |
how
numbers are named (-illions, -illionths, etc.), latin prefixes, scientific
notation, how to pronounce numbers |
| left-to-right
subtraction |
arithmetic,
speedmath |
| How
can you use the sense of sound to help you learn basic multiplication? |
multiplication,
how to learn math |
| basic
multiplication |
thoughts
on how to learn multiplication |
| Why
does any number to the 0 power equal 1, and not 0? |
exponents,
how numbers work |
| Place
values for Bases |
exponents,
how numbers work |
| proof
that 1 = 2 (?!?) |
how
numbers work , mathematical fallacies |
| expanded
notation |
How
numbers work. Speedmath. |
| Introduction
to Exponents (Powers) |
exponents,
how numbers work |
| The Commutative Law of Multiplication |
multiplication,
how numbers work |
| The
Order of Operations |
arithmetic,
how numbers work |
| Negative Exponents |
arithmetic,
exponents, how numbers work |
| How to Divide Exponents
with the same Base |
arithmetic,
exponents, division, how numbers work |
| Which is greater, x2*y2 or x2+y2? |
|
Simple
Wording for Multiplication and Division
of Whole Numbers |
arithmetic,
multiplication, division, how numbers work |
| Names for the Division
Symbol |
division,
nomenclature |
Making
Math Meaningful for
Teachers and Students |
how
to learn math |
| Insights Learned from
a Silly Joke about Multiplication |
Math
and Philosopy, Insights, Math and Meaning |
| Changing
Fractions into Percent |
arithmetic,
fractions, percents |
| Names
of the Numbers in Basic Arithmetic Operations |
arithmetic,
nomenclature, insights |
| "Pretty
Good Guide"
to Prime Factorization |
arithmetic,
how numbers work, prime numbers |
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