Writing numerical inequalities | |
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Description | |
Exercise Name: | Writing numerical inequalities |
Math Missions: | 6th grade (U.S.) Math Mission, Pre-algebra Math Mission, Mathematics I Math Mission |
Types of Problems: | 3 |
The Writing numerical inequalities exercise appears under the 6th grade (U.S.) Math Mission, Pre-algebra Math Mission and Mathematics I Math Mission. This exercise practices using the inequality symbols in various contexts.
Types of Problems
There are three types of problems in this exercise:
- Compare the numbers: This problem provides a description of a situation involving two numbers. The user is asked to select which inequality symbol can be placed between the numbers to make a true inequality.
- Put in order and answer: This problem describes a comparison between two amounts. The user is asked to pull cards into the correct order and then answer the question related to the inequality.
- Select true statements: This problem compares two numbers using an inequality word. Users are asked to select all the answers from a multiple select list that are true.
Strategies
Knowledge of all types of numbers and how they compare to each other on a number line (especially negatives) is necessary to do this problem well. Accuracy badges and speed badges are reasonable because there are predicable elements to many of the problems.
- On the Compare the numbers problem the numbers are relatively distant from each other so they can be compared easily.
- On the drag and select problem it might be more efficient to drag one of the number down first, then place the inequality and then the second number.
- There will always be exactly two selections needed for the Select true statements problem. One with a comparison using less than and the other with greater than.
Real-life Applications
- For most people, in order to get their license they have to be older than 17. So, they can write this as an inequality. x is the age of a person who wants to drive. In this case x has to be > or equal to 17.