Assess Readiness
Understanding Unit and Composite Fractions
(3.NF.1)Edit
The questions below assess the prerequisite standards needed for this Lesson.
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Which of the models shows halves?
The model in C shows 2 equal parts, or halves.
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How can we say and write this fraction?
We say, "one half." We write this as
\frac{1}{2} . -
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In D, the pieces are not the same shape. Does this model show fourths? Why or why not?
Yes; equal parts have to be the same size, but not the same shape. We can cut the rectangle in half. Then, we can cut each of those halves into fourths.
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E has 4 parts. Does it show fourths? Why or why not?
No, because the parts are not the same size.
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What fraction of each of these models are shaded?
A = 3 thirds; B = 4 fourths.
D = 4 fourths.
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