Treasures from the AtticChapter 2: Addition & Subtraction with Fractions

M3

Sew WhatLesson 1

Objectives

Extend your understanding of the concepts of addition and subtraction to include fractions.

Estimate to compare combinations of fractions to benchmarks like 1/2 and 1.

Develop a variety of concrete methods and written algorithms for adding proper fractions with like and unlike denominators.

Find a variety of fractions that combine to make 1 whole.

Initiate

Sew What

In the trunk in the attic, Tori and Jordan found some records from the Rabbit Hutch General Store about a number of purchases of cloth made by Mr. Diwoky, the town tailor. Because he was always making suits and dresses for the people in town, he bought cloth and other material from the store every week. Every time he bought material, their great-great-grandma first estimated the total amount that he was buying.

The following are some of the amounts of material that Mr. Diwoky bought in February Discuss whether the remnants are:• More than a yard• Less than a yard• Equal to a yard

Be sure to explain your reasoning.

Challenge!

1/4 yard, 1/3 yard and 1/6 yard

1/2 yard, 1/3 yard and 1/4 yard

1/3 yard, 1/8 yard, 1/4 yard and 1/6 yard