Reply to No doing well with Common Core, but we'll with Singapore math

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[quote=Anonymous][quote=Anonymous][quote=Anonymous]but you might use doubles to solve 47+58: Break down 58 into 3+50+5 and then combine 47+3 to get 50, use doubles to get 50+50=100, then add the 5 to get the answer of 105.[/quote]

My math teacher would be appalled at such a clumsy, inefficient, ridiculous solution.  I'd get a C for this in best case scenario.
But in CC worksheets this kind of math is acceptable. That's the problem with the curriculum.  This is an example of CC I found on Reddit:

[quote][b]If Common Core was applied to IT [/b]

How to replace memory in your computer:

[u]The old way[/u]

Power off the computer
Unplug your computer from the power source
Open the computer exposing the motherboard and components
Attach an antistatic strap to your wrist and to the chassis on the computer
Remove the old memory
Install the new memory
Remove the antistatic strap
Replace the cover on the computer
Plug the computer back in and turn the power on and verify the memory is recognized during the POST process

[u]The common core IT way:[/u]

Unplug the monitor from the PC, move it as far across the house as possible.
Remove the keyboard and mouse and put it in the top drawer of your office file cabinet.
Power off the computer by flipping the main breaker switch to the entire house.
Fumbling your way in the dark, unplug the computer from the power source and close your eyes and toss it behind you, not paying attention to where it lands.
Open the computer using an acetylene torch.
Once the computer case has cooled down from the torch and you’ve put the fire out on the rug after regaining consciousness from being overcome by toxic burning rug fumes, remove the hard drives, video card, and old memory.
Did we forget to tell you to get a flashlight since the power is out?
Remove the motherboard from the computer and place it on the melted remains of the carpet.
Install the new memory in the motherboard.
Pry the motherboard off the melted carpet and put it back in the computer.
Reinstall the hard drives and video card and connect the power supply back to the motherboard.
Using the torch, weld the cover back to the computer case, taking care not the set the rug on fire again.
Plug the computer back into the power source.
Flip the main breaker switch back on.
Turn on the computer. The resulting surge in power and damage to the computer from the torch will set the rug on fire again, setting the entire room on fire.
Crawl low to the nearest exit and get out of the house.
Call 911.
File a claim with your insurance provider, use the check to repair the house and get a new computer with new memory.
Plug the new computer in and turn the power on and verify the memory is recognized during the POST process.[/quote][/quote]

If I were older than 9 doing math this way, I might agree.  But not for a 6/7 yr old.  BTW, I am in IT, and when I try to explain to my ES kids what I do for a living, my explanation is long, much longer than how I would explain it to an adult.   Why?  Because  young kids don't understand much about computers or business, just like they have limited exposure to number sense.[/quote]

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