RCN Lesson 15: Stories with Fractions

Last updated almost 3 years ago

13 questions

Launch: Number Talk - (7 min)

I'll model question 2 
We'll do question 3 
You do question 4 

RCN Lesson 15: Stories with Fractions

Last updated almost 3 years ago

13 questions

Develop Understanding
Today's Learning Goal: (G4, U9, L3)
Add and subtract fractions and mixed numbers with like denominators.
Compare fractions and mixed numbers by reasoning about equivalence.
Solve and create word problems involving addition and subtraction of fractions referring to the same whole.
Today's Materials:
Laptop
Laptop charger
Pen/Pencil/Paper (optional)
Please complete the Jump Start (activator). You have 5 minutes before we review. This is independent it should be silent.
Reminders:
1. Ready for class
2. No cellphones
3. Volume must be low.
4. Read and follow all directions
5.) Take your bag off and immediately begin the Activator.

Required

Launch: Number Talk - (7 min)

I'll model question 2 
We'll do question 3 
You do question 4 

Activity 1 - Relay Race at Recess (20 min)

Students in the fourth-grade class had a relay race during recess. 
Each  team had four runners. Each runner ran the length of the school  playground.
Here are the times of the runners for two teams.

Required

Which team won the relay race? Show your reasoning.

Required

Activity 2 - You be the author (15 min)
Groups of 2.

Think of three situations as described here. 
After each problem is written, trade papers with a partner to  compare your problems and check your solutions.

Required

A problem that can be solved by addition and has 9 2/5 as an answer.

Required

A problem that can be solved by subtraction and has 32/100 as an answer.

Required

Lesson Synthesis - (10 min) 

In this lesson, we have solved many problems that involved adding, subtracting, multiplying, and comparing fractions.

What are two things that you have learned from listening to the ideas of other students in these lessons

Required

What is one thing you want to continue to practice when solving problems with fractions?

Cool Down - (5 min)

Mai's Milky Cereal
 

Required

There were 7 cups of milk before Mai made breakfast. Now there are 2 2/8 cups of milk. How much did Mai use for breakfast?

Closure Questions: 
How do you convert from improper to mixed fractions?
How do you convert from mixed to improper?
6/8 = 3/4 is called a what?

RCN Lesson 15: Stories with Fractions

Launch: Number Talk - (7 min)

RCN Lesson 15: Stories with Fractions

Launch: Number Talk - (7 min)

Activity 1 - Relay Race at Recess (20 min)

Which team won the relay race? Show your reasoning.

Activity 2 - You be the author (15 min)

Groups of 2.

Think of three situations as described here.

After each problem is written, trade papers with a partner to compare your problems and check your solutions.

A problem that can be solved by addition and has 9 2/5 as an answer.

A problem that can be solved by subtraction and has 32/100 as an answer.

Lesson Synthesis - (10 min)

In this lesson, we have solved many problems that involved adding, subtracting, multiplying, and comparing fractions.

What are two things that you have learned from listening to the ideas of other students in these lessons

What is one thing you want to continue to practice when solving problems with fractions?

Cool Down - (5 min)

Mai's Milky Cereal

There were 7 cups of milk before Mai made breakfast. Now there are 2 2/8 cups of milk. How much did Mai use for breakfast?

Closure Questions:

Jump Start: Number Talk: One Whole, Many Names - (5min)

Activity 1 - Relay Race at Recess (20 min)

Which team won the relay race? Show your reasoning.

How much faster is the winning team than the other team? Show your reasoning

The record time for the playground relay race was 40.27 seconds. Did the winning team beat this record time? Show your reasoning.

Activity 2 - You be the author (15 min)

Groups of 2.

Think of three situations as described here.

After each problem is written, trade papers with a partner to compare your problems and check your solutions.

A problem that can be solved by addition and has 9 2/5 as an answer.

A problem that can be solved by subtraction and has 32/100 as an answer.

A problem that could be solved by writing the equation: 9 - x = 3 3/5

Lesson Synthesis - (10 min)

In this lesson, we have solved many problems that involved adding, subtracting, multiplying, and comparing fractions.

What are two things that you have learned from listening to the ideas of other students in these lessons

What is one thing you want to continue to practice when solving problems with fractions?

Cool Down - (5 min)

Mai's Milky Cereal

There were 7 cups of milk before Mai made breakfast. Now there are 2 2/8 cups of milk. How much did Mai use for breakfast?

Closure Questions:

Jump Start: Number Talk: One Whole, Many Names - (5min)

How much faster is the winning team than the other team? Show your reasoning

The record time for the playground relay race was 40.27 seconds. Did the winning team beat this record time? Show your reasoning.

A problem that could be solved by writing the equation: 9 - x = 3 3/5