Lesson Study – Lesson Plan
Grade level: 4th Grade
Standard:4.NBT.6 Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
Learning Objective:
Students will find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, using strategies based on place value.
SMP:
1 Make sense of problems and persevere
4 Model with mathematics
6 Attend to precision
Formative Assessment:
Probing Questions for Differentiation on Mathematical Tasks
Assessing Questions / Advancing Questions
Tasks / What will the teacher be doing? / What will students be doing?
Beginning-of-class routine
Engage (Prior Knowledge) / Place 4 longs under doc camera:
What is the value?
Take 1 long away and 10 units:
What happened to the value?
Place 1 flat under doc camera:
What is the value?
Place 10 longs next to the 1 flat:
Compare the two values. / Respond to questions orally whole class or with partner pairs
Answer using academic language
Task 1
The student council is putting on a bake sale. There are 27 cookies for the bake sale. The students need to put 9 cookies in each bag. How many bags will the students need? (27 ÷ 9= 3) / Teacher will pose questions to class.
CFU to ensure students understand what the question is asking. (Read 2 ways)
Ask students to use base ten models to model the problem. / Students will work in pairs to model problem using base ten blocks on their white boards
Task 2
Jaime took 144 photos on a digital camera. The photos are to be placed equally in a 6 photo albums. How many photos will be in each album? (144 ÷ 6= 24) / Teacher will pose questions to class.
CFU to ensure students understand what the question is asking. (Read 2 ways)
Ask students to use base ten models to model the problem.
**What other strategies have we used to solve division problems?
Use one of those strategies to check the work you did with your base ten models.
**Bring different solutions/strategies up to discuss whole class.
**Where do we see _____ (144, 24,and 6) in each method? / Students will work in pairs to model problem using base ten blocks.
Use another strategy to check their work/prove their solution is correct.
Task 3
284 ÷ 4 / Write on board
Joey and Christina
Who is correct? / Turn and talk
Students will complete ticket out the door independently.
Closure
The student council is putting on a bake sale. There are 27 cookies for the bake sale. The students need to put 9 cookies in each bag. How many bags will the students need?
Jaime took 144 photos on a digital camera. The photos are to be placed equally in a 6 photo albums. How many photos will be in each album?
Joey and Christina both solved the problem below. Explain who is correct and why.
Joey Christina
4)284 4)284
Joey and Christina both solved the problem below. Explain who is correct and why.
Joey Christina
4)284 4)284