In this biography-based unit, second graders explore biographies of famous leaders and change agents. The unit has three main sections. In the first section students research and learn about people who have changed the world by inventing things. In this section students will explore the ways in which inventions can change the world and what it takes to turn an idea into action. In the second section students research and learn about people who have changed the world by standing up for what they believe in and fighting for what others think is impossible. In this section second graders explore the ways some leaders have persevered in the face of obstacles and stood up for themselves or ideas when many had stopped believing in them. In the third section students research and learn about people who have changed the world by making the world and environment a better place for everyone. In each of the sections, students read biographies that expose them to a wide variety of themes, content, and history. It is incredibly important that the necessary framing is done prior to reading a text so that students can deeply engage with the biographies and fully understand the challenges and successes of the different people being studied. Without framing or context, students may miss why each person's actions are inspirational. It is our hope that this unit will open students' eyes to the multitude of ways in which a person, regardless of race or gender, can influence and inspire change.

For readers, this unit is a combination of read-aloud and shared reading. At this point in the year second graders have been exposed to almost all of the high-frequency informational reading standards; therefore, this unit is a chance to review some standards and skills students need to practice. Two new standards that are a focus in this unit, however, are describing how reasons support particular points the author makes in a text and also comparing and contrasting the most important points presented by two texts on the same topic. Compare and contrast in this unit should go deeper than text features and structures. Although students can note differences in text features, the main focus should be on comparing and contrasting the different points and the reasons the authors use to support the points in two texts about the same person.

Natural disasters such as volcanoes, earthquakes, hurricanes, and wildfires happen all over the world. Understanding how natural disasters happen and why helps children feel less anxious and more prepared. Therefore, this unit focuses on teaching students the science behind each natural disaster while also explaining what to do if they live in an area prone to a particular natural disaster. Over the course of the unit, students hear about many famous natural disasters, but the unit places more of an emphasis on how the disasters happen rather than exploring the devastation or destruction caused by previous natural disasters. The unit provides many opportunities for students to learn more about recent natural disasters, including a culminating research project.

The texts in this unit were chosen because of their wide variety of text features, content, and accessibility. Over the course of the unit, students will read texts that are very technical and rely heavily on text features, diagrams, and illustrations, as well as texts that are written as informational narratives. Students will be challenged to think about the structures the authors use to help the reader interact with and learn the content. Additionally, students will learn the importance of referring to specific details from the text and using those details to explain and teach back the newly learned material. This unit serves as the foundation for building strong reading habits and routines and setting high expectations for text consumption. Clear models should be included in the unit to help students build a deeper understanding of how to actively read and annotate informational texts for key ideas, text features, and vocabulary. This unit also serves as a launching point for strong discussions. Students will frequently be challenged to debate questions from the text; therefore, strong habits of discussion need to be introduced over the course of the unit.

Students will understand the importance of text features in nonfiction texts and will use them to tell about themselves.

In this unit, students explore the relationship between living things and their environment and how the environment can both positively and negatively impact a species' ability to survive. Using the Next Generation Science Standards as a guide, students will learn about different species, what they need for survival, their life cycle, and how they have adapted for survival. Then students will be challenged to create arguments that explain why some organisms are able to survive well, some survive less well, and others can't survive at all in certain habitats. Through this unit, along with others in the sequence, students will use the scientific information they learn to think critically about the world around them.

The Science of Living Things texts were chosen as mentor texts for this unit because the author, Bobbie Kalman, uses text features and clear language to clearly communicate complex concepts about the animal kingdom, life cycles, and animal adaptations. As readers, students will be challenged to constantly ask and answer questions about key details in the text, explicitly referring to the text to support an answer or a question. Over the course of the unit, students will also deepen their understanding of how Bobbie Kalman uses text features to not only organize information, but to help a reader learn new information and facts about a subject. Students will also work on using context clues to figure out the meaning of genre-specific vocabulary, find the main idea of a section, and explain cause and effect in relation to scientific concepts.