Understanding Fraction Comparison Using Number Lines
Learn how to compare fractions with like denominators or like numerators using number lines. Discover the concept of numerators and denominators, connect prior knowledge about number lines, and practice comparing fractions visually with real-world scenarios.
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Presentation Transcript
Objective I can use number lines to compare fractions with like denominators or like numerators.
Vocabulary Number line Number line A straight line on which each point represents a real number.
numerator The top number of a fraction that shows how many parts of the whole have been chosen. denominator The bottom number of a fraction that shows how many parts in all.
Set the Purpose You already know how to compare whole numbers on a number line. Now, we are going to learn how to compare fractions on a number line.
Connect Describe a situation in which you might need to compare fractions.
Link to Prior Knowledge What are some things that we already know about number lines? The numbers are greater as they move to the right. They can be broken up into parts from one whole number to the next
Talia has two different Talia has two different lengths of red and blue lengths of red and blue ribbon. Does Talia have ribbon. Does Talia have more red ribbon or more more red ribbon or more blue ribbon? blue ribbon? What are you asked to find? Which fraction is greater. What is important to know before you compare these two fractions? The wholes are the same size. What do you notice about these two fractions? The denominator is the same.
1 1 What fraction is greater or 2 6
Greater than >, less than <, or equal to = Explain Your Answer 2 2 6 4
Greater than >, less than <, or equal to = Explain Your Answer 3 3 8 4
Greater than >, less than <, or equal to = Explain Your Answer 6 6 6 8
Greater than >, less than <, or equal to = Explain Your Answer 2 3 8 8
Greater than >, less than <, or equal to = Explain Your Answer 5 5 10 8
