Use these number posters in your classroom to help your students learn about the numbers 1-20.Each number has its own page and includes the numeral, word and matching number of robots.For all numbers 11-20, the robot pictures match those on the 1-10 posters. For example, number 17 has the robots from the 10 poster and the robots from the 7 poster. This helps students see the way numbers are composed (17 is 1 ten and 7 ones).