One thing my students struggle with every year is fact fluency....there just are not enough hours in the day! Now with the common core standards it is an area I am working really hard to address. One way we began was through learning our doubles facts quickly and efficiently. We even learned a catchy doubles rap that they cannot get out of their heads. Here is the 6-10 version...they were so excited when I found it.... Doesn't take much to entertain us! I created a number sense packet to reinforce doubles concepts. You can find it by clicking the picture below.