RCN Lesson 14: Convert between Improper and Mixed-Number Fractions
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Last updated about 3 years ago
13 questions
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Launch - Converting Mixed-Fraction and Improper Fraction. (7 min)
I'll model question 1 on Activator
We Do question 2 on Activator
You do question 3 on Activator
Activity 1 - Straws for A Roller Coaster. (15 min)
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Lesson Sythnesis- (10 min)
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Cool Down - (5 min)
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Closure Questions:
How do you feel about today's material?
What is an equivalence fraction?
What are the 3 kinds of fractions we seen today?
Develop Understanding
Today's Learning Goal: (G4,U9, L2)
Add and subtract fractions and mixed numbers with like denominators.
Compare fractions and mixed numbers by reasoning about equivalence
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.
Jump Start - (5 min)
Number Talk: Whole and Units
Answer the questions (1 - 3) below:
Question 1
1.
Question 2
2.
Question 3
3.
Answer questions 4 - 6
In science class, Noah, Tyler, and Jada are building a model of a roller coaster out of 1-foot-long paper straws.
Noah needs a piece that is 7/12 foot long.
Tyler needs one that is 1/4 foot long
Jada needs one that is shorter than the other two.
Jada says, “We can just use one straw for all these pieces."
Question 4
4.
Draw a diagram to represent this situation and explain to your partner how it matches the situation.
Then, find the length of the piece of straw that could be Jada’s piece.
Question 5
5.
Did Noah use more than 1/2 foot or less than 1/2 foot of straw? Explain or show your reasoning.
Question 6
6.
Tyler says, “If Jada uses a piece that is 1/6 foot long, there would be a piece of straw that is 1/12 foot left.” Do you agree or disagree with Tyler? Explain your reasoning.
Activity 2 - Tall Enough for a Ride? (15 min)
Answer questions 7 - 10
Lin’s class is on a trip to the amusement park. Visitors must be at least a certain height to get on rides. Use the table to answer questions about four students’ height.
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
Problem solving is about reasoning. Today we solved problems involving addition and subtraction of fractions and mixed numbers.
Question 11
11.
What did you use to make sense of the problems? What helped you make sense of the strategies that others shared?
Question 12
12.
How did understanding fraction equivalence help you solve the problems?
The Flag Pole
Question 13
13.
How long is the entire flagpole? Show your reasoning.
