Dr. Donald Crawford paid a visit to DadsWorksheets.com last week and suggested perhaps renaming the worksheets posted here to avoid conflict with the commercial Rocket Math curriculum he has developed over at http://www.rocketmath.com. You can read the discussion at the bottom of the Spaceship Math Strategy post, but given that this is supposed to be a low-stress activity on my end, changing the names of the worksheets to address everyone’s concern was definitely easy. Meanwhile, if you’re a teacher looking to purchase a full curriculum for Rocket Math, be sure to check out Dr. Crawford’s new web site at the link above.