standard_description: Recognize angle measure as additive. When an angle is decomposed into non-overlapping parts, the angle measure of the whole is the sum of the angle measures of the parts. Solve addition and subtraction problems to find unknown angles on a diagram in real world and mathematical problems, e.g., by using an equation with a symbol for the unknown angle measure.
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