Today at work I was helping one of the kids (4th grader) with her homework. One thing that she had to do was a worksheet on decimals. One side had long rectangles broken up into 10 smaller rectangles and for each she needed to write the decimal of the shaded area. So, for example, if there were 5 little rectangles colored-in, the decimal would be 0.5. Some of the examples had one or more full rectangles (all 10 sections) colored-in and then one with only a few of the rectangles colored in. For example, two full rectangles colored-in and one with only two sections colored in would be 2.2. With these, she was having a VERY hard time understanding where the decimal point was supposed to go. I decided to explain it to her as tens and ones and that the tens place was on the left of the decimal point and the ones place was on the right. After doing that, she got them all right. Then, we got to the back of the page.... The back was all blocks of 100 little squares and she needed to write the decimal for the shaded area. She was counting the squares colored in and figured the # out fine, but again was having a hard time figuring out where to put the decimal. I just told her that for all of those the tens and ones places were both going to be to the right of the decimal. Then, she was fine. I'm not sure if I've explained this well enough for all of you to understand, but if you do understand what I'm talking about (haha!) could you give me any other suggestions of how I could have explained this to her?