Lesson 8 Objective: Fluently multiply multi-digit whole numbers using the standard algorithm and using estimation to check for reasonableness of the product. Suggested Lesson Structure Practice (7 minutes) Application Problem (10 minutes) Development (33 minutes) Student Debrief (10 minutes) Total Time (60 minutes) Fluency Practice (7 minutes) State in Exponential Form Name 5.NBT.2 (3 minutes) Multiply Using the Area Model with a Zero in One Factor 5.NBT.6 (4 minutes) State in Exponential Form Name (3 minutes) Materials: (S) Personal white board Note: This fluency activity maintains earlier skills and encourages insights into the place value structure of multi-digit multiplication’s partial products. A quick review of relevant vocabulary (base, exponent, power) may be in order. T: (Write 102 = .) Say the base. S: 10. T: Say the exponent. S: 2. T: Say 10 squared as a multiplication sentence starting with 10. S: 10 × 10 = 100. T: Say it as a number sentence without using a multiplication sentence. S: 10 squared equals 100. Repeat the process with 103, 104, 105, and 107.
Lesson 8 Objective: Fluently multiply multi-digit whole numbers using the standard algorithm and using estimation to check for reasonableness of the product. Suggested Lesson Structure Practice (7 minutes) Application Problem (10 minutes) Development (33 minutes) Student Debrief (10 minutes) Total Time (60 minutes) Fluency Practice (7 minutes) State in Exponential Form Name 5.NBT.2 (3 minutes) Multiply Using the Area Model with a Zero in One Factor 5.NBT.6 (4 minutes) State in Exponential Form Name (3 minutes) Materials: (S) Personal white board Note: This fluency activity maintains earlier skills and encourages insights into the place value structure of multi-digit multiplication’s partial products. A quick review of relevant vocabulary (base, exponent, power) may be in order. T: (Write 102 = .) Say the base. S: 10. T: Say the exponent. S: 2. T: Say 10 squared as a multiplication sentence starting with 10. S: 10 × 10 = 100. T: Say it as a number sentence without using a multiplication sentence. S: 10 squared equals 100. Repeat the process with 103, 104, 105, and 107.