Students are instructed to practice writing the address and return address on an envelope. The text explicitly tells students to use a comma between the city and state when writing the address and return address. An example address is provided that shows the comma placement: "Prairie Land Range, Kansas 28873."

The "Places to label" list includes city/state and place names written with commas (e.g., "Boston, Massachusetts", "Cape Cod, Massachusetts", "Cambridge, Massachusetts", "Montclair, New Jersey", and "Washington, DC"). The map labeling activity asks students to label each destination on the map, which would have students copy or use those place names. The "Resident of" prompt on the bio-poem page asks students to write a place where a person lives.

The Student Activity Page includes place examples written with commas (for example: "Ohio, Germany, Disney World, Florida" and specifically "Disney World, Florida"). Activity 1 asks students to record names and birth dates on a timeline, which includes place-related entries in the materials. The places list and examples show commas appearing with geographic names in the instructional materials.

The lesson asks students to address, stamp, and mail envelopes in Activity 6 and explicitly states to "Review address format for both the return address and recipient address." Activity 6 also instructs the teacher/parent to "Remind your child that a comma is used between the city and state." The Skills section lists "Review proper punctuation included in addresses," indicating direct practice with address punctuation.

Students are asked to record punctuation marks they know and to use each one in a sentence, and the comma is explicitly listed among the punctuation marks. Students are instructed to write location information and a paragraph about Paris (appearing as 'Paris, France' in the activity), which presents an example of a comma used in a place-name.

The lesson explicitly states: "Commas are used to separate cities and states. If the city and state come in the middle of the sentence, put a comma after the state as well." Activity 4 (Commas) directs students to add commas in sentences and includes examples for cities and states such as "My best friend moved to Houston, Texas." and "I lived in Albany, New York, until I was five years old." The Student Activity Page and answer key provide practice items and corrected examples that require students to insert commas in city/state constructions.

The student activity page for the second diary entry shows the opening "Dear Diary," including a comma after the address. Skills list includes "Compose sentences and use the appropriate punctuation," and Activity 2 asks students to write diary entries using the provided opening and closings/signatures. Students are asked to write in their journals and on the provided template that contains the comma in the salutation.

The journal/diary activity includes sample salutations that begin with "Dear Diary," for both Prince Brat and Jemmy, showing a comma after the address. Students are instructed to write their own journal entries (Option 2) and to complete the provided guided entries that begin with the salutation. The activities therefore require students to produce writing that includes a direct address followed by a comma.

In Activity 4, Option 1 students are asked to write a letter, address the envelope, and are told to "Review the proper form of addressing an envelope." The instructions explicitly state: "Remind your child that a comma is included between the city and state." Students are therefore asked to practice addressing an envelope, including inserting the comma between city and state.