We have been studying and learning about oviparous and viviparous animals. This is a really fun topic to teach young children about. My favorite book for introducing this topic is called Chicken's Aren't the Only Ones by Ruth Heller. This book is great for showing that many animals other than chickens come from eggs and are oviparous.
A great follow-up book that we've read is called Animals Born Alive and Well, also by Ruth Heller. This book discusses mammals and their characteristics and introduces the word "viviparous", meaning animals who give birth to live young.
I came up with a cut and paste activity to support our study of this topic. Below you can see how I've set it up on the shelf. The children do this activity at the two tables facing the shelf, so they don't have to carry the materials anywhere. They just sit down and grab what they need.
From left to right I have a tray with the Oviparous/Viviparous sorting page and a tray with the animal pictures..........
......then a basket with glue, a bowl with scissors, a jar with a pencil for writing their name on the work, and a tray with vinyl gluing mats.
To do this work, the child cuts apart the animal pictures and lays them out in the appropriate column: oviparous or viviparous. Then they have a teacher check their work. Once their work is checked, they can glue the pictures onto their paper.
You are welcome to download and use my sorting page and pictures using the files below.