This interactive SMARTboard lesson is practice in counting using a number line to use in small group, partner work, independent center, or instructor led lessons. Slides include counting up and down by ones, twos, fives, tens, fifty, and hundreds. Critical thinking skills and problem solving are utilized. Answer slides follow each question and are perfect for discussion. Comprehensive answer key is provided at the end if you do not want to use the separate "answer slides". It contains 35 que