Grade 5Number Talks

Unit 4: Adding, Subtracting, Multiplying, and Dividing Fractions

Note: Number Talks skills should be centered on the learning needs of the students in your classroom. The number strings listed are suggestions based on the content presented in the unit. Teachers should use professional judgment to determine the focus that is most appropriate for their students.

Week 1: Benchmark Fractions
Is the fraction greater than , less than , or equal to ?
Compare the fraction to on a number line. / Is the fraction closer to 0 or 1? Compare the fraction to 1 on a number line.
Day 1 / Day 2 / Day 3 / Day 4 / Day 5
Week 2: Fraction Estimation
Determine whether the sum or difference is greater than 1 or less than 1. Explain your reasoning.
Day 1 / Day 2 / Day 3 / Day 4 / Day 5
+ + +
– – 1 1 – / + + +
1 – 1 – 3 – 1 / + + +
– 2 – 2 – 1 / + + +
– 1 – 1 – / + + +
– 4 – 3 3 – 1
Week 3: Fraction Addition
Find the sum.
Day 1 / Day 2 / Day 3 / Day 4 / Day 5
1 + 1
1 +
+
+
+ / 2 + 1
+
2 + 1
2 + 1
2 + 1 / 3 + 2
3 + 2
3 + 2
+
+ / +
+
1 + 1
+
+ / +
+
+
+
+
Week 4: Fraction Subtraction
Find the difference.
Day 1 / Day 2 / Day 3 / Day 4 / Day 5
4 – 1
4 –
4 –
–
– / 2 – 1
–
2 – 1
2 – 1
2 – 1 / 3 – 2
3 – 2
3 – 2
–
– / –
–
4 – 1
–
– / –
–
–
–
–
Week 5: Concepts of Fraction Multiplication and Division
Determine if the product will be greater than 5 or less than 5. Explain your reasoning. / Determine if the product will be greater than 3 or less than 3. Explain your reasoning. / Determine if the product will be greater than 2 or less than 2. Explain your reasoning. / What is another way to express each fraction or statement?
Example: is the same as 3 divided by 5 or as 3 shared by 5.
Example: 2 divided by 3 is the same as .
Day 1 / Day 2 / Day 3 / Day 4 / Day 5
5 x2 x 5x
x5 5x1 5x / 3 x 2 x 3 x 1
x 3 3 x 2 x 3 / x 2 x 2 x 2
1 x 2 2 x 2 x /
/ 9 divided by 10
12 shared by 8
1 shared by 2
7 divided by 3
2 divided by 9
Week 6: Fraction Multiplication
Find the product. Draw a model to represent the problem.
Day 1 / Day 2 / Day 3 / Day 4 / Day 5
2 x 1
2 x
2 x
x
x / 3 x 1
3 x
3 x
x
x / 4 x 1
4 x
4 x
x
x / 5 x 1
5 x
5 x
x
x / 6 x 1
6 x
6 x
x
x
Week 7: Fraction Division
Find the quotient. Draw a model to represent the problem.
Day 1 / Day 2 / Day 3 / Day 4 / Day 5
6 ÷ 1
6 ÷
6 ÷
6 ÷
6 ÷ / 4 ÷ 1
4 ÷
4 ÷
4 ÷
4 ÷ / 3 ÷ 1
3 ÷
3 ÷
3 ÷
3 ÷ / 9 ÷ 1
9 ÷
9 ÷
9 ÷
9 ÷ / 12 ÷ 1
12 ÷
12 ÷
12 ÷
12 ÷
Week 8: Fraction Division
Find the quotient. Draw a model to represent the problem.
Day 1 / Day 2 / Day 3 / Day 4 / Day 5
1 ÷ 6
÷ 6
÷ 6
÷ 6
÷ 6 / 1 ÷4
÷ 4
÷ 4
÷ 4
÷ 4 / 1 ÷ 3
÷ 3
÷ 3
÷ 3
÷ 3 / 1 ÷ 9
÷ 9
÷ 9
÷ 9
÷ 9 / 1 ÷ 12
÷ 12
÷ 12
÷ 12
÷ 12
Week 9: Area with Fractional Side Lengths
Calculate the area of each rectangular figure.
Day 1 / Day 2 / Day 3 / Day 4 / Day 5

9/12/2016