A quick way to increase rigor, while introducing a concept or topic for the day, use a picture. Rather than showing the entire picture to students, cut the picture into multiple pieces, and show them one at a time, requiring them to discern elements and infer the topic. You can also use technology to either show pieces or uncover pieces of the picture. I was in a primary classroom where the teacher used a simple folder to complete this activity. On the front of the folder, a face with a smile was cutout. The picture was inserted inside the folder, and students determined the picture with just the portion seen through the face. It’s a simple way to complete this activity, and a quick and easy way to add rigor to your lesson.