Integers Rap

life aint as simple as one and one is two
gotta talk about negatives wichu
integers include the entire bunch
in Latin that means “whole” or “untouched”
whole numbers and their negatives
are all called integers kid
zero are part of integers, I aint lyin’
first ones to know this were the Mayans
was a place holder in their calendars
of a base 20 system, not 10 like ours
probably ‘cuz they didn’t just count on their hands
also on their toes in that Chiapas land
southernmost part of Mexico
round 36 B.C. wrote the first zero
by 628 had it in India
written in a book by Brahmagupta
world won’t end in 2012 so don’t be scared
starts a new baktun of bout 400 years
this ain’t no show like gigante
breakin’ it down like Jaime Escalante
start with number line in both directions, yo
positives on the right, increase as they go
negatives on the left, don’t get messed up
value becomes less as numbers go up
to add, go right from the starting point
to subtract go left from the starting point
answer is on the number that you land
can do it another way, yes you can
adding a negative is an easy situation
change to positive while changing to subtraction
subtract a negative, gotta do the same
switch to addition and to positive you change
for example take 18+(-7)
answer you get gonna be 11
or if you take 30-(-10)
40 is your answer my friend
or try 4+(-8) know what you get
-4 will be your answer, that’s a sure bet
if you got 4 and lose 8 you down a few bro
you owe four and that’s less than zero
multiply and divide gotta know something
couple rules now while that beat is pumpin’
signs are same answer is positive
signs are different answer is negative
a negative times a positive is a negative
a positive times a negative is a negative
a positive times a positive is a positive
a negative times a negative is a positive
divide is the same rule as multiplyin’
that’s all there is to integers, stop ya cryin’
add, subtract, multiply or divide
it’s all good man, give it a try
-9 times 4, don’t need no tricks
signs are different so you get -36
-3 times -5 gives ya +15
‘cuz signs are the same, u know what I mean
-40 divided by 8
answer is -5, aint that great
54 divided by -6 equals -9
gon’ be negative each an every time

Circulatory System Rap

system’s called circulatory
nourishing cells is the gist of this story
heart pumps blood, takes oxygen we breathe
with nutrients to the cell it feeds
similar cells come together to form tissues
different tissues join so you won’t have any issues
organs work together to maintain life function
gonna rhyme about a system at this juncture
how do you transport nutrients to the cell
or take away waste, this I’m gonna tell
fluid transports smooth so that there’s no flood
it’s the circulatory system, uses a tissue called blood
blood’s make of plasma which is mostly water aight
suspends 2 types of cells, red blood cells and white
RBC’s contain hemoglobin carries O2
to every cell that make up me and you
white blood cells defend us, could be a phagocyte
eats them germs attacked by lymphocytes
lymphocytes produce antibodies that surround
bacteria or a virus, phagocyte gulps ‘em down
3 kinds of blood vessels so flow is maintained
capillaries arteries and veins
veins take blood to the heart, arteries away
if you can’t remember this think away = “a”
capillaries are microscopic, thickness of one cell
branch from arteries, keeps your tissues well
brings O2 and nutrients, takes away waste
CO2 released once O2 is displaced
process is called blood oxygenation
happens to every human from every nation
reason why we need to breathe all the time cant you see
aerobic organisms use it for energy
blood flows through the veins and on to the heart
a 4 chambered pump, it’s the most important part
blood enters right atrium from the vena cava
flows into right ventricle just like lava
right ventricle pumps to the lungs blood goes
gets more O2 then back to the heart it flows
through left atrium to the most muscular part
left ventricle pumps oxygenated blood to all your body parts
through the aorta a blood vessel baller
the largest artery then branches into smaller
down to capillaries drops off O2 you see
cycle then repeats automatically
now  you know the function of your blood and your heart
it’s so beautiful, not a science but an art
stay healthy, heart disease is killer #1
eat lots of raw veggies and exercise, son


if you see a long mathematical expression man
simplify it by combining what you can
makes it much easier, don’t make me stutter
PEMDAS makes math smooth like butter
first is the P, means Parentheses
go inside those curved lines, believe me
do all the math you find in them
rewrite the expression now my friend
E for Exponents in the second phase
those little numbers you see that are raised
for example if you have 3 to the second power
make it a 9 real fast, don’t take an hour
third is M for Multiplication
in an expression or an equation
simplify by timesin’ what you see
and if  no operation next to parentheses
D is for Divide, order number four
divide could be a slash or maybe something more
a line in a fraction that can be simplified
or two dots above and below a straight line
Addition is the operation second to last
almost done with PEMDAS so that test you can pass
add the numbers with addition signs between ‘em son
should have no other operations left but one
number six is Subtraction, that’s the S
look for tiny horizontal line, don’t guess
difference between two numbers, just about done
take away amount on right from the left one
if you forget PEMDAS don’t sweat it
remember this phrase that’ll help you get it
Please Excuse My Dear Aunt Sally
it’s in every classroom from NYC to Cali