Question about showing work in Math
Posted: Wed Mar 14, 2012 11:19 am
For those who have completed or are in upper levels of Math......
'When your kids are getting all correct answers, but don't write down anything but the answers, and can't really even verbalize HOW they got the answer.............do you work with them until they CAN/WILL write it out and/or verbally explain it, or do you just move on?
I know that they do get it, and even when they do get something wrong (not very often), they can just look at it one time and say, "oh, wait...that should have been three-eighths, not four-fifths". But when it comes to explaining how they got there, they have a very difficult time. I can tell that they "know" it, but their explanation will be something like, "well, I take the fourth and move it over there, and then move the 3 over there....." all while drawing/pointing in the air (as if physically moving around the numbers in the sky. Honestly, I can't keep up with what they are saying/doing.
Pre-kids, I was a statistician (an actuary), so I have had a.lot.of.math. I was never a math teacher, but all my classroom experience keeps coming back to me that you are supposed to show your work
. I am thrilled that my kids can do this stuff well, and the fact that they can do it well in their heads just amazes me (as, after all my years of math, I still practically have to have a pencil to solve 2+3
). My oldest is doing another math program (she was too far in when we found Singapore), and she shows every single step that she does. When my Singapore kids were in the lower levels, I was thrilled when they could solve normal addition/subtraction or even multiplication/division in their heads. I think it's just because they are doing more now, and I am realizing that the higher level maths are coming up, and I can't imagine not showing your work in something like that.
Is it OK that they can't write each step down? I am envisioning a college algebra class where they get kicked out for cheating because they turn in a test with what should have 4 pages of written problem solving, with a simple number written across the front
Ok, I know I'm being a little dramatic here, but seriously, is this something we need to work on, or will it all work itself out by the time they get to the higher maths? (If it makes any difference, the kiddos that I am referring to are in 5A and 4A.
Ang
'When your kids are getting all correct answers, but don't write down anything but the answers, and can't really even verbalize HOW they got the answer.............do you work with them until they CAN/WILL write it out and/or verbally explain it, or do you just move on?
I know that they do get it, and even when they do get something wrong (not very often), they can just look at it one time and say, "oh, wait...that should have been three-eighths, not four-fifths". But when it comes to explaining how they got there, they have a very difficult time. I can tell that they "know" it, but their explanation will be something like, "well, I take the fourth and move it over there, and then move the 3 over there....." all while drawing/pointing in the air (as if physically moving around the numbers in the sky. Honestly, I can't keep up with what they are saying/doing.

Pre-kids, I was a statistician (an actuary), so I have had a.lot.of.math. I was never a math teacher, but all my classroom experience keeps coming back to me that you are supposed to show your work


Is it OK that they can't write each step down? I am envisioning a college algebra class where they get kicked out for cheating because they turn in a test with what should have 4 pages of written problem solving, with a simple number written across the front

Ang