5th Grade Common Core Math Problem

4,106 Views | 52 Replies | Last: 3 yr ago by TexasRebel
Orlando Ayala Cant Read
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AG
Unfortunately I'm in single dad mode for a night and I can't even remember how to solve this problem the old fashioned way much less with common core. Anyone able to walk me through the steps (common core) so I can explain it to my 5th grader who waited til 840 pm to tell me he doesn't understand it? Help appreciated.
Inca
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AG
https://www.mathsisfun.com/area.html
Frozen Concoction
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The area of any triangle is 0.5*base*height
Frozen Concoction
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A) 0.5 * 20 * 12 = 120
B) 0.5 * 4 * 18 = 36
TommyTopp99
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AG
Find the area of the rectangle and subtract the area of the triangle:

Area of the rectangle= Length x width = 20 x 12 = 240
Area of the triangle= (base x height)/2 = (20 x 12)/2 = 120

Thus the area of the of the shaded portion of the rectangle on the right is 120
ag88man
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AG
Every triangle is half of a rectangle.

Base and Height are always perpendicular to one another.
jm94
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AG
How is this a "Common Core" math problem? Or is that just what parents call any of their kid's math homework they don't know how to do?
Leeman
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Op failed basic geometry. ;-) j
Orlando Ayala Cant Read
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AG
Lol thanks guys! Cheers!

And, no I didn't fail geometry. I failed reading!
THE_CHOSEN_ONE
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It's the green part
Carlo4
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AG
Don't forget to say cm squared or m squared. Can you have your kid comment that we aren't on the metric system?
FIDO*98*
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AG
Just shade in the rest of the rectangle since it's asking for the 'shaded area of the rectangle'
BackwardsInBoots
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AG
metric > imperial
Slicer97
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AG
Only if you're a limp wristed commie.

We do inches, feet, yards, and miles here in 'Mericuh
Not a Bot
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AG
We use imperial and landed on the moon.
BackwardsInBoots
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AG
The internal calculations for the computers were done in metric - they were just displayed in imperial units.
MGS
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The United States never used the Imperial System.
Ag with kids
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AG
BackwardsInBoots said:

metric > imperial
Builder93
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AG
That gave me a chuckle, then I realized NASA probably used the metric system to get to the moon.
Ag with kids
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AG
Builder93 said:

That gave me chuckle, then I realized NASA probably used the metric system to get to the moon.
Having worked with a lot of old code, much of which was originally written in the 60s and 70s, I'm skeptical that metric was used. None of the code I worked with used metric.
Builder93
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AG
Ag with kids said:

Builder93 said:

That gave me chuckle, then I realized NASA probably used the metric system to get to the moon.
Having worked with a lot of old code, much of which was originally written in the 60s and 70s, I'm skeptical that metric was used. None of the code I worked with used metric.
The Googles says it was used for calculations, but Imperial was the language of the pilots, so they used Imperial for their understanding where applicable.
ABATTBQ11
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AG
Frozen Concoction said:

A) 0.5 * 20 * 12 = 120
B) 0.5 * 4 * 18 = 36



Nvmd.
AquaCasaAg
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AG
4 is the base not the height. Rotate the image clockwise one turn.
toucan82
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Builder93 said:

Ag with kids said:

Builder93 said:

That gave me chuckle, then I realized NASA probably used the metric system to get to the moon.
Having worked with a lot of old code, much of which was originally written in the 60s and 70s, I'm skeptical that metric was used. None of the code I worked with used metric.
The Googles says it was used for calculations, but Imperial was the language of the pilots, so they used Imperial for their understanding where applicable.
do you really trust Big Tech to tell you the truth? they have a history of downplaying America's greatness. it's all part of their leftist Deep State plot to turn the US into another failed Socialist state
Slicer97
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AG
toucan82 said:

Builder93 said:

Ag with kids said:

Builder93 said:

That gave me chuckle, then I realized NASA probably used the metric system to get to the moon.
Having worked with a lot of old code, much of which was originally written in the 60s and 70s, I'm skeptical that metric was used. None of the code I worked with used metric.
The Googles says it was used for calculations, but Imperial was the language of the pilots, so they used Imperial for their understanding where applicable.
do you really trust Big Tech to tell you the truth? they have a history of downplaying America's greatness. it's all part of their leftist Deep State plot to turn the US into another failed Socialist state


Do you folks see what's going on now?

If you want to cover up the truth, have the truth delievered by someone who is not to be taken seriously.

Libs are an evil, crafty people.
Ag with kids
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AG
Builder93 said:

Ag with kids said:

Builder93 said:

That gave me chuckle, then I realized NASA probably used the metric system to get to the moon.
Having worked with a lot of old code, much of which was originally written in the 60s and 70s, I'm skeptical that metric was used. None of the code I worked with used metric.
The Googles says it was used for calculations, but Imperial was the language of the pilots, so they used Imperial for their understanding where applicable.
Interesting. I don't remember any of the old engineers I worked with (many of whom started LONG before the Apollo program was even thought of) using metric...

I understand displaying everything in imperial because Americans (not just pilots) are calibrated in those units (hell, I've been an engineer over 30 years, know metric well, and still am not calibrated in it). Seems stupid, though, to waste limited computing resources to have to do all those conversions though, when you could just use imperial throughout the code.
TexasRebel
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AG
A) bh/2 = 120cm^2

B) bh/2 - b(h-4)/2 = bh/2 - bh/2 + 2b = 2b = 36 m^2
sam callahan
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username checks out
Martin Q. Blank
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Frozen Concoction said:

A) 0.5 * 20 * 12 = 120
B) 0.5 * 4 * 18 = 36

You forgot your units.
Ag with kids
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AG
Martin Q. Blank said:

Frozen Concoction said:

A) 0.5 * 20 * 12 = 120 velociraptors per horsepower
B) 0.5 * 4 * 18 = 36 kegels cubed per donut

You forgot your units.
pdc093
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Duncan Idaho
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Here is a hot take:
Common core was the last good idea in education.
Builder93
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AG
Ag with kids said:

Builder93 said:

Ag with kids said:

Builder93 said:

That gave me chuckle, then I realized NASA probably used the metric system to get to the moon.
Having worked with a lot of old code, much of which was originally written in the 60s and 70s, I'm skeptical that metric was used. None of the code I worked with used metric.
The Googles says it was used for calculations, but Imperial was the language of the pilots, so they used Imperial for their understanding where applicable.
Interesting. I don't remember any of the old engineers I worked with (many of whom started LONG before the Apollo program was even thought of) using metric...

I understand displaying everything in imperial because Americans (not just pilots) are calibrated in those units (hell, I've been an engineer over 30 years, know metric well, and still am not calibrated in it). Seems stupid, though, to waste limited computing resources to have to do all those conversions though, when you could just use imperial throughout the code.


I admit, I'm getting into an area where I have enough knowledge to be dangerous. Perhaps it was the telemetry that was metric and the controls were Imperial?
Ag with kids
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AG
Builder93 said:

Ag with kids said:

Builder93 said:

Ag with kids said:

Builder93 said:

That gave me chuckle, then I realized NASA probably used the metric system to get to the moon.
Having worked with a lot of old code, much of which was originally written in the 60s and 70s, I'm skeptical that metric was used. None of the code I worked with used metric.
The Googles says it was used for calculations, but Imperial was the language of the pilots, so they used Imperial for their understanding where applicable.
Interesting. I don't remember any of the old engineers I worked with (many of whom started LONG before the Apollo program was even thought of) using metric...

I understand displaying everything in imperial because Americans (not just pilots) are calibrated in those units (hell, I've been an engineer over 30 years, know metric well, and still am not calibrated in it). Seems stupid, though, to waste limited computing resources to have to do all those conversions though, when you could just use imperial throughout the code.


I admit, I'm getting into an area where I have enough knowledge to be dangerous. Perhaps it was the telemetry that was metric and the controls were Imperial?
Builder93
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AG
For discussion.........and to irritate old people.
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