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MakingAndInvestigatingFractionStrips ICON
Number and Operations

Making and Investigating Fraction Strips

3-5
Students make and use a set of fraction strips to represent the length model, discover fraction relationships, and work with equivalent fractions.
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Number and Operations

More Fun with Fraction Strips

3-5
Students continue to work with fraction strips to compare and order fractions. This lesson builds on the work done with fraction relationships in the previous lesson. Students develop skills in problem solving and reasoning as they make connections between various fractions.
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Number and Operations

Investigating Fraction Relationships with Relationship Rods

3-5

Students use relationship rods to explore fraction relationships. This work with relationships lays the foundation for work with more challenging fraction concepts.

Relationship rods are wooden or plastic rods in ten different colors. They range in length from one to ten centimeters. Each length is a different color.

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Number and Operations

Investigating Equivalent Fractions with Relationship Rods

3-5
Students investigate the length model by working with relationship rods to find equivalent fractions. Students develop skills in reasoning and problem solving as they explain how two fractions are equivalent (the same length).
Number and Operations

Inch by Inch

3-5
In this lesson, students use a ruler to represent various fractions as lengths. This lesson builds on the work done in the previous lessons with as students use a standard instrument to measure a variety of items, including items which can be measured to the nearest half and quarter of an inch.
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Number and Operations

Building Numbers Up to 10

Pre-K-2
Students construct sets of numbers up to 10, write the numerals up to 10, and count up to 10 rationally. They use ten frames and also make bean sticks.
BuildingSetsOf11And12 ICON
Number and Operations

Building Sets of 11 and 12

Pre-K-2
Students use bean sticks, connecting cubes, and ten frames to construct sets of 11 and 12, record them, and compare them.
BuildingSetsOf13and14 ICON
Number and Operations

Building Sets of 13 and 14

Pre-K-2
Students construct and identify sets of size 13 and size 14. They compare sets to sets of size 13 and size 14, and record the number in the sets. They decompose a set of 13 and a set of 14 in several ways.
BuildingSetsOf15And16 ICON
Number and Operations

Building Sets of 15 and 16

Pre-K-2
Students explore the numbers 15 and 16. They make and decompose sets of size 15 and size 16, write the numerals 15 and 16, and compare other sets to sets of size 15 and size 16.
BuildingSetsOf17And18 ICON
Number and Operations

Building Sets of 17 and 18

Pre-K-2
Students construct sets up to size 18, write the numerals 17 and 18, and model 17 and 18 with bean sticks, cubes, and ten frames.