Mastering Fractions in 3rd Grade

Ms. Copeland

Sheep Harney Elementary School

3rd Grade Teacher

Common Core Standards:


-Understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b.


-Understand a fraction as a number on the number line; represent fractions on a number line diagram.

-Represent a fraction 1/b on a number line diagram by defining the interval from 0 to 1 as the whole and partitioning it into b equal parts. Recognize that each part has size 1/b and that the endpoint of the part based at 0 locates the number 1/b on the number line.

-Represent a fraction a/b on a number line diagram by marking off a lengths 1/b from 0. Recognize that the resulting interval has size a/b and that its endpoint locates the number a/b on the number line.


-Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.

-Understand two fractions as equivalent (equal) if they are the same size, or the same point on a number line.

-Recognize and generate simple equivalent fractions, e.g., 1/2 = 2/4, 4/6 = 2/3. Explain why the fractions are equivalent, e.g., by using a visual fraction model.

-Express whole numbers as fractions, and recognize fractions that are equivalent to whole numbers. Examples: Express 3 in the form 3 = 3/1; recognize that 6/1 = 6; locate 4/4 and 1 at the same point of a number line diagram.

-Compare two fractions with the same numerator or the same denominator by reasoning about their size. Recognize that comparisons are valid only when the two fractions refer to the same whole. Record the results of comparisons with the symbols >, =, or <, and justify the conclusions, e.g., by using a visual fraction model.

Demographic of data collected:

-11 boys

-9 girls

-Below Level Students

-On Level Students

-Above Level Students

Data Collection Methods:


-Pre-test/ Post Test

-Benchmark tests

Strengths of Data Collection

-Pre and Post test gave the students the same questions.  This shows the teacher if the students are able to answer the same questions after instruction was give

-Multiple observations where given during the unit to determine understanding or to stop any misconceptions

Weaknesses of Data Collection


Technology Tools used to Collect Data:

-School Net: Learning management system that allowed the teacher to create a test based around the common core standards.  Students either take the test online or input their answers.  Data will be displayed for the teacher and the principal.

-MobyMax pre test:  Site that allows students to take a placement test to check their level of understanding.  Students will be given assignments and lessons based on their weaknesses.

Implemented Changes in Instruction:

-Multiple manipulative used

-Technology lessons centered around problem areas

-Different textbook used (ones that are rigors enough to meet the complexity of the standards)

-Data collected from online tools

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by acopeland


Public - 9/17/16, 1:33 AM