A keynote by Leesa Irwin and Lorena Sutton, CWE UW.4.M.NF.01 Objective: I can explain why one fraction is equivalent to others, using visual models. A keynote by Leesa Irwin and Lorena Sutton, CWE

even though the two fractions are equal. Big Ideas ~Equivalent fractions can be represented in many ways. ~The number and size of the parts differ even though the two fractions are equal.

SET 1/4 1/4 1/2 1/2 1/4 1/4 Take one whole piece of paper Color in half (1/2) How many fourths = 1 whole? How many halves = 1 whole? How many fourths = 1/2 Fold your paper in half. Fold your paper in half again. Fold your paper in half again. How many eighths = 1 whole? How many eighths = 1/2? 1/8 1/8 1/8 1/8 1/8 1/8 How many eighths = 1/4? 1/8 1/8

Can you make an educated guess how many 16ths = 1/2? 2/2 = 1 4/4 = 1 8/8 = 1 8/16 = 4/8 = 2/4 = 1/2 Can you make an educated guess how many 16ths = 1/2? To check, fold your paper in half one more time. Fraction Rule: When the numerator is half the denominator, a fraction can be renamed as 1/2. 2/8 = 1/4 Look at your paper to see how many 16ths = 1/4 A fraction is an amount less than 1 whole. Fractions can have more than one name while keeping the same value: 4/16 = 2/8 = 1/4

VOCABULARY 4 6 Fraction: a number that is less than 1 whole 4/6 numerator 4/6 numerator denominator denominator Denominator: the bottom digit in a fraction, representing the total number of equal parts an item is divided into. Numerator: the top digit in a fraction, representing how many parts of a whole are being considered. Equivalent fractions: different fractions that represent the same value

Fraction strips can help you identify and understand equivalent fractions. 1 1/2 1/2 1/3 1/3 1/3 1/4 1/4 1/4 1/4 1/5 1/5 1/5 1/5 1/5 1/6 1/6 1/6 1/6 1/6 1/6 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/9 1/9 1/9 1/9 1/9 1/9 1/9 1/9 1/9 1/10 1/10 1/10 1/10 1/10 1/10 1/10 1/10 1/10 1/10 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12 1/12

What fractions are equivalent to 1/3? Use your fraction strips (a ruler will help) to find equivalent fractions for the fractions below. 1/6 = ?/3 2/6 = ?/12 3/4 = ?/12 2/3 4/12 9/12 4/5 = ?/10 2/3 = ?/6 2/3 - ?/12 8/10 4/6 8/2 What fractions are equivalent to 1/3? 2/6, 3/9, 4/12

In your journal, explain Closure: In your journal, explain what equivalent fractions are.