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 or rates.

Front

How do you use a double number line to solve problems?

Back

You can use a double number line to find equivalent ratios or to determine how one quantity changes in relation to another by following the increments on both lines.

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 people to time in the water slide example?

Back

The ratio is 18 people to 3 minutes, which simplifies to 6 people per minute.

Front

If Kim makes 8 loaves of bread using 12 cups of raisins, how many cups of raisins does she use per loaf?

Back

1.5 cups of raisins per loaf.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another.

Front

How do you find a missing number in a ratio?

Back

You can set up a proportion using the known values and solve for the missing number.

Front

What does the ratio 2:3 represent in the context of sugar to flour?

Back

It means for every 2 parts of sugar, there are 3 parts of flour.

Front

If 12 people take 2 minutes to go down the slide, how long would it take 6 people?

Back

1 minute.

Front

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

Back

It helps visualize relationships and make calculations easier by showing equivalent values.