Measurement precision

The  exercise appears under the Arithmetic Math Mission and Pre-algebra Math Mission. This exercise analyzes measurement and assists understanding of measurement.

Types of Problems
There are three types of problems in this exercise:


 * 1) Analyze the situation and precision: This problem provides a word problem where something is being measured. The student is asked to analyze the measurements given and determine if they make sense in context.Mp1.png
 * 2) Answer the word problem: This problem describes a situation where rounding to a number is necessary. The student is expected to find the correct answer and make sure it is reasonable in the requirements stated.Mp2.png
 * 3) Find an appropriate range: This problem tells the student that a certain situation was rounded to a particular number. The student is expected to find the correct range of values that round as specified.Mp3.png

Strategies
An ability to work with numerical quantities and rounding skills would assist one to perform this exercise correctly. No additional algebraic skills are needed.
 * 1) Remember to round down in ''Answer the word problem" since generally it asks for at most how many objects can be called upon.
 * 2) The answers to Find an appropriate range will be integers, so read carefully to make sure it is being interpreted correctly.

Real-life applications

 * 1) In real-life, good estimates are often more valuable than exact answers since real-life is not exact and mathematics only models real-life. Therefore knowledge of precision estimates can be utilized in most measurement situations.