Prior to using the ELMO document camera, I showed the children a thermometer. I tried to show the children how the mercury would rise and fall depending on how hot or cold the water was. I saw first hand today how frustrating it is for the children to see something in a whole group setting that is so small. When presenting the lesson again using the ELMO, the children were so excited and remained on task for a longer period of time because everyone could see the mercury rise and fall at the same time.