Double Number Line

Front

What is a double number line?

Back

A double number line is a visual representation that shows two sets of numbers along parallel lines, helping to illustrate relationships between quantities, such as ratios.

Front

How do you use a double number line to find equivalent ratios?

Back

You can find equivalent ratios by identifying points on the double number line that correspond to the same relationship between the two quantities.

Front

If 18 people can go down a slide in 3 minutes, how many people can go down in 1 minute?

Back

6 people.

Front

What is the ratio of sugar to flour if the double number line shows 2 cups of sugar for every 3 cups of flour?

Back

The ratio is 2:3.

Front

How can you determine how long it takes for a different number of people to go down a slide using a double number line?

Back

You can use the known time for a specific number of people and find the equivalent time for the desired number of people by maintaining the same ratio.

Front

What does it mean if a double number line shows a missing number?

Back

It indicates that there is a value that needs to be calculated or inferred based on the existing values and their relationships.

Front

If you have 9 cups of raisins and can make 6 loaves of bread, how many loaves can you make with 3 cups of raisins?

Back

2 loaves.

Front

What is the purpose of using a double number line in problem-solving?

Back

It helps visualize relationships between quantities, making it easier to solve problems involving ratios and proportions.

Front

How do you find the total time for a group of people using a double number line?

Back

By using the known time for a specific number of people and scaling it according to the ratio of the new group size.

Front

What is an example of a real-life situation where a double number line can be used?

Back

Planning a recipe that requires different amounts of ingredients based on the number of servings.