It seems that in lesson 68, my daughter has hit a roadblock.
This is where she learns to subtract half of a number - 10-5, 4-2, 18-9, etc.
Up to this point, she had only been subtracting minus 2 from numbers and doing great. then we got to this point and she lost it, as in, there was no way I could get her to understand how these problems work.
Should I instead just drill these so she memorizes them, instead of trying to work them out in her head? It was too overwhelming for her to try and contemplate 18-9. However when we memorized double numbers she picked it up pretty quickly by using flashcards and memorizing.
so... Should we focus on memorizing these, and not work so much on actually working the problem out? The further into the lessons she gets, she'll be working on these problems lesson by lesson the more she learns to subtract.
Should we have been focusing on memorizing all of the number facts up to this point? She had been memorizing some of them just from repetition, but many of them she still works out in her head. I figured it's more important that she learns how to work the problems out rather than memorize them.
This is where she learns to subtract half of a number - 10-5, 4-2, 18-9, etc.
Up to this point, she had only been subtracting minus 2 from numbers and doing great. then we got to this point and she lost it, as in, there was no way I could get her to understand how these problems work.
Should I instead just drill these so she memorizes them, instead of trying to work them out in her head? It was too overwhelming for her to try and contemplate 18-9. However when we memorized double numbers she picked it up pretty quickly by using flashcards and memorizing.
so... Should we focus on memorizing these, and not work so much on actually working the problem out? The further into the lessons she gets, she'll be working on these problems lesson by lesson the more she learns to subtract.
Should we have been focusing on memorizing all of the number facts up to this point? She had been memorizing some of them just from repetition, but many of them she still works out in her head. I figured it's more important that she learns how to work the problems out rather than memorize them.