Rocket Blast 
Activity Type: Whole Group
Mental Number Line to 1000
Students estimate the placement of a tick mark on a 1-1000+ number line to the nearest whole number. (Adapted from: Clements & Sarama, 2014)
Special Thanks To
The research reported here was supported by the Institute of Education Sciences, U.S. Department of Education, through grant numbers R305K050157, R305A120813, R305A110188, and R305A150243. to the University of Denver. The opinions expressed are those of the authors and do not represent views of the Institute or the U.S. Department of Education.