Teacher Troy stands in front of a blackboard with 3 different types of angles drawn on it: acute, right, and obtuse.

Teacher Troy is in his thirties, bald and with a shadow of a beard. He wears a blue Homework Help T-shirt.

He says HI
TVO KIDS.
THIS IS TEACHER
TROY.
AND WE'RE HERE TO
TALK ABOUT ANGLES.
MATH IS THE STUDY
OF RELATIONSHIPS.
ANGLES DISCUSSES
THE RELATIONSHIP
THAT OCCURS WHEN
TWO LINES MEET
AT A
COMMON POINT.
THERE ARE THREE
MAJOR TYPES
OF ANGLES THAT
WE'RE GOING TO DISCUSS.
WE'RE GOING TO TALK
ABOUT ACUTE ANGLES,
RIGHT ANGLES,
AND OBTUSE ANGLES.
FOR THIS BREAK WE'RE
GOING TO FOCUS
ON
OBTUSE ANGLES.
NOW WHEN YOU
START OFF,
THINK
ABOUT YOUR ARM.

He bends his arm and says SO RIGHT NOW MY
ARM WOULD BE
FORMING A
RIGHT ANGLE.
SO IT FORMS ALMOST
LIKE AN L.
NOW WHEN YOU
START TO OUTSTRETCH
YOUR ARM YOU'RE NOW
GETTING INTO
WHAT'S CALLED
AN OBTUSE ANGLE.
AND THE DISTANCE
BETWEEN MY
SHOULDER AND
THE END OF MY HAND
FORMS A NICE
BIG ANGLE.
ACUTE ANGLES
ARE VERY SMALL.
RIGHT ANGLES ARE
ABOUT HALF WAY.
ONCE YOU GET
PAST THAT RIGHT ANGLE
AND YOU START
STRETCHING
IT OUT WE'RE
GETTING INTO
THE OBTUSE.
SO NOW IF I WERE
TO DRAW ONE,
I WOULD START WITH
ONE OF MY UPPER ARM,
OF COURSE IT MEETS
AT THE ELBOW,
AND ANYTHING
NOW THAT STRETCHES
OUT OVER HERE,
OF COURSE
YOU'RE GOING
TO USE A RULER.

He draws an arch in the intersection and says THE ANGLE WOULD
BE RIGHT HERE.
YOU NOTICING
NOW THIS GIVES ME
A LOT OF CURVE
BECAUSE THE
ANGLE
IS BIG.
SO IF I DREW
ANOTHER ONE.
THAT ANGLE
IS BIG AS WELL.
SO ONCE YOU GET
INTO THESE
ANGLES WHERE
IT'S ALMOST LIKE
A BIG HILL IN
BETWEEN THEM.
WE'RE GETTING
INTO OBTUSE ANGLES.
SO WE HAVE ACUTE,
RIGHT, AND OBTUSE.
OBTUSE ARE THE
BIGGER ONES.
I'M TEACHER TROY
AND I HOPE THAT HELPS.