Are you looking for a fun way to motivate students about estimation?
Display the banner "Estimation Wall" which is included. and assign one problem at a time.. Let the students work on the problem, reminding them to show their thinking in pictures, numbers and words.
There are 18 problem posters included, so you can decide how often you post a new problem for them to solve. They an then included their responses in their Math portfolios. This is also a great form of assessment for, of and as student leaning.
Each poster has a QR code so students can self check their answers.