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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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Geometry

Finding Lines of Symmetry

3-5
Students identify lines of symmetry and congruent figures. They explore these concepts with paper cutting and modeling on the geoboard.
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Geometry

Mirroring Kandinsky

3-5
This lesson allows students to apply what they have learned in previous lessons by designing their own art. Students use Kandinsky’s style of art and their own creativity to make paintings that reflect their understanding of geometry.
Algebra

Stability in Numbers

3-5
In this lesson, students apply their knowledge of addition equations to create number sentences using an electronic balance tool.
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Algebra

Petals Around the Rose

3-5
A puzzle involving five dice and a non-standard pattern is used to promote problem-solving skills.
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Measurement

What Time is it in Belize?

3-5
Students will calculate differences in time zones and explore the effects of traveling across time zones.
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Measurement

Preparing for the Trip

3-5
In this lesson, students will use various resources to choose travel dates, compare temperatures, estimate and calculate distances to Belize City, and determine the length of their flight in preparation for a "trip" to Belize.
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Measurement

Getting Ready for the Dives

3-5
In this lesson, students will pretend to travel to the island of Ambergris Caye off the coast of Belize. Students will work together to complete the measurements needed for their scuba diving gear in preparation for the dives, and they will solve elapsed time problems.