Materials: (S) Problem Set Suggested Delivery of Instruction for Lesson 19’s Word Problems. 1. Draw the labeled tape diagram on the board, and give the students the context. Have them write a story problem based on the tape diagram. Have two pairs of students, who you think can be successful with writing a problem, work at the board while the others work independently or in pairs at their seats. Review the following questions before beginning the first problem. What story makes sense with the diagram? What question will I ask in my word problem? As students work, circulate. Reiterate the questions above. After 2 minutes, have the two pairs of students share their stories. For about 1 minute, have the demonstrating students receive and respond to feedback and questions from their peers. 2. Calculate to solve and write a statement. Give everyone 2 minutes to exchange stories, calculate, and make a statement of the answer. 3. Assess the solution for reasonableness. Give students 1–2 minutes to assess and explain the reasonableness of their solutions. Note: In Lessons 17–19, the Problem Set will be comprised of the word problems from the lesson and is, therefore, to be used during the lesson itself. Problem 1: Create and solve a simple two-step word problem from the tape diagram below. Suggested context: People at a football game. Problem 2: Create and solve a two-step addition word problem from the tape diagram below. Suggested context: Cost of two houses.
Materials: (S) Problem Set Suggested Delivery of Instruction for Lesson 19’s Word Problems. 1. Draw the labeled tape diagram on the board, and give the students the context. Have them write a story problem based on the tape diagram. Have two pairs of students, who you think can be successful with writing a problem, work at the board while the others work independently or in pairs at their seats. Review the following questions before beginning the first problem. What story makes sense with the diagram? What question will I ask in my word problem? As students work, circulate. Reiterate the questions above. After 2 minutes, have the two pairs of students share their stories. For about 1 minute, have the demonstrating students receive and respond to feedback and questions from their peers. 2. Calculate to solve and write a statement. Give everyone 2 minutes to exchange stories, calculate, and make a statement of the answer. 3. Assess the solution for reasonableness. Give students 1–2 minutes to assess and explain the reasonableness of their solutions. Note: In Lessons 17–19, the Problem Set will be comprised of the word problems from the lesson and is, therefore, to be used during the lesson itself. Problem 1: Create and solve a simple two-step word problem from the tape diagram below. Suggested context: People at a football game. Problem 2: Create and solve a two-step addition word problem from the tape diagram below. Suggested context: Cost of two houses.