standard_description: Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers. For example, recognize an incorrect result 2/5 + 1/2 = 3/7, by observing that 3/7 < 1/2.
problem_activity: Problem 1
The model below represents one whole.
[IMG]
Which fraction is equivalent to the one represented by the shaded part of the model?
Problem 2
A point is shown on the number line diagram below.
[IMG]
Write three equivalent fractions for the location of this point.
Problem 3
Use the number line to explain how you know the fractions in #2 are equivalent.


aligns: no