Students are asked to circle an item in each room and explain why they selected it as contributing to a healthy environment (Activity 2). In Activity 3, students state which room is most important and write or dictate reasons for why that room is important, then read the paragraph aloud. The Facts and Definitions section gives simple explanatory statements (for example, that a healthy environment has food, water, and shelter and that shelter provides protection from weather) that students read and discuss.

During Day 2 students read Up in the Garden and Down in the Dirt and answer explicit why/how questions (e.g., Q2: What did the people have to wait for before they could plant their seeds? Why?; Q3: Why does Nana tell the boy to give the plants a drink?; Q5: Why does the author say 'Hurry, hurry, and harvest!'). Question #1 asks students to explain how they know the season, prompting them to cite text clues. Question #7 asks students to identify how animals help plants, requiring students to state reasons the text gives (pollination, soil stirring, pest control).

Students read The Salamander Room and answer targeted "why" questions (e.g., "Could the boy give the salamander the kind of habitat it lived in when it was in the forest? Why or why not?"), which requires them to explain reasons connected to the text. Students are asked to answer cause-and-effect questions about pet care ("What would happen if we didn't provide a healthy environment for our pets?") that require them to state reasons and consequences. Students practice explaining what environment an animal would need in the Life Application and Activities, prompting them to give reasons for their choices.

Students read and analyze short explanatory texts about animal adaptations that include reasons for changes (for example: "This thicker hair keeps them warm," descriptions of snakes shedding skin to accommodate growth, starfish regrowing arms, lizards camouflaging, and sharks growing new teeth). Activity 1 asks students to analyze each animal and read about how the animal changes to live and grow in its habitat. The skills list includes "Listen critically to text read aloud" and "Respond to critical questions about a text," which prompt comprehension of explanatory content.

After reading On the Town, students are asked, "Why did Charlie write down the places he visited and the names of people who worked in each place?" and are prompted to discuss how a healthy community meets people's needs. The wrapping-up prompt asks students what a healthy community provides, and the teacher-led discussion invites students to explain how places in a community meet needs. These questions require students to state reasons for actions or claims about the community.

Students are asked in Activity 1 to say what each worker does and how his/her job makes the community a better place, prompting them to state reasons a job helps the community. In Activity 5 students record one simple sentence about how each worker helps citizens, practicing expressing cause or purpose for each role. Activity 6 directs students to read books about community workers and their jobs, exposing students to informational text about ways workers help others.

The story "The House with No Rules" describes specific consequences (e.g., stomachaches from eating anytime, tiredness from staying up late, mean behavior among kids) that support the point that rules are needed. After reading the story, students are asked questions that prompt them to state what kinds of things happen in the house with no rules and to say whether they would stay there and why. Activity 1 also asks students to pick which home rule is most important and explain why, prompting students to give reasons for rankings.

Students are asked questions about cause and effect in the story (e.g., "What does Katy do to be a good citizen?" and "Does Katy help the people in her community? How?") that prompt them to explain why Katy's actions mattered. The Questions to Explore include "How and why does a healthy environment lead to a healthy community?" Activity 3 asks students to pick three things that make a community happy and healthy and to explain why they chose them, requiring students to give reasons.

Students read pages 26–35 of A Life Like Mine and are asked to identify and describe the different homes shown in the book. Students are prompted to answer why people have homes and to look at the materials used to make those homes, which elicits reasons such as shelter from weather and places for families to come together. Students are also asked to identify natural resources and the materials used to build their own homes.

Students are asked to identify causes and effects in Activity 1 by matching before-and-after picture cards and deciding what changed and why. In Activity 3 students complete the sentence "________ changed because ________," drawing and writing a cause for a change they observed. The wrap-up and prompts encourage students to think about and explain reasons that things change and to identify examples of cause and effect in their home.

The lesson explicitly states criteria in the text (e.g., "Physical change is a change in size, shape, color, or state of matter" and "Chemical change occurs when a new substance is formed"), which are author-given reasons for classifying changes. In Activities, students are asked to decide whether scenarios are physical or chemical and to "explain how he made each decision," prompting them to cite the author's criteria. The answer key gives explicit reasons (e.g., "rusty bicycle (chemical -- a new substance [rust] is produced)") that students can identify as the author's support.

Activity 2 explains reducing/reusing/recycling and gives explicit cause-effect language (e.g., "This reduces the number of plastic bottles that are thrown away"). The video prompt and follow-up ask the child to discuss why the family recycles and how it helps the environment. Activity 3 asks the child to describe illustrations, explain how each is changing the environment, and decide whether the change is positive, negative, or neutral and why.

Students listen to the read-aloud and answer direct why-questions (e.g., "Did she need to be worried? Why or why not?") with explanations such as "No, she didn't need to be worried because a lot of kids came" and "because she was the only butterfly." The Characters Change activity asks students to write "Wemberly changed because..." which asks them to state a reason linked to events in the story.