This is a mini-lesson to introduce the concept of longer and shorter.
I have found my students always must first learn the terms "long, longer, and longest" and "short, shorter, shortest." These can be used in math word problems and while a problem can mean the same thing, it is easy for children to become confused if the same math language is not seen exactly as it has been taught in class.
For my class of students, they need a very concrete visual. As a result, I cut apart the sections of pictures on page 2 of the document with the words/pictures "long, short" "longer, shorter" and then "longest, shortest." I started with the pictures "long, short" and we looked at and described the picture. I then placed the "longer, shorter" picture over this and asked the students what they see. Finally, I place the "longest, shortest" picture over the others and the students start to see how the words can be different when we read a word problem. However, it is basically the same. ***The teacher talk it just to remind you (the teacher) to share this important visual with your students as you introduce the concept.
It then goes into an example and you will be able to reason through some questions about measurement at the end of the mini-lesson.
Though this lesson was designed for Kindergarten, it can be used with first grade as well. Also, you can use this as a visual for your English Language Learners to help them understand more about measurement. Thank you!