The Recognizing fractions 2 exercise is under the 3rd grade (U.S.) Math Mission. This exercise has the user experiment with fractions as a part from a whole using a visual model.
Types of Problems
There are two types of problems in this exercise:
- Write the amount shaded: This problem provides a shaded diagram and a standard equal-sized cut in the picture. The user is asked to identify the shaded amount and write it in the space provided.
- Select the correctly shaded picture(s): This problem provides a beginning unit picture and a fraction. Users are asked to select all pictures that display the amount requested.
Strategies
This exercise requires knowledge of fractions as numbers of denominations. A geometric understanding of fractions, although not vital, would assist in speed and efficiency for accuracy badges and speed badges on this exercise.
- The fraction does not have to be reduced to get credit on this problem.
- The value of the fraction can be provided as an exact decimal which can assist with efficiency.
- Occasionally it is easier to count the unshaded pieces rather than the shaded pieces if it is close to a whole number.
Real-life applications
- Fractions are used in real life in lots of different ways, but are commonly used in cooking, construction and science.
- There are many situations where visual fractions come up in situations where sharing is required (i.e., splitting a candy bar other food items).
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