Unit 9: Reasoning with Shapes

Lesson 1:  Equal Shares

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2nd Grade Unpacking Document

• I can partition rectangles and circles into two, three, or four equal shares, and describe how I know that the shares are equal.

• Video Links

  • Partitioning Shapes

• Virtual Manipulatives

  • Geoboard

Lesson 2:  Halves, Thirds, and Fourths, Oh My! (Day 1 of 2)

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2nd Grade Unpacking Document

• I can partition rectangles and circles into two, three, or four equal shares, and describe how I know that the shares are equal.

• Video Links

  • Partitioning Shapes

• Virtual Manipulatives

  • Geoboard

Lesson 3:  Halves, Thirds, and Fourths, Oh My! (Day 2 of 2)

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2nd Grade Unpacking Document

• I can identify and name halves, thirds, and fourths.

• I can partition shapes into halves, thirds, and fourths.

• Video Links

  • Partitioning Shapes

• Virtual Manipulatives

  • Fractions

Lesson 4:  Partition the Geoboard

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2nd Grade Unpacking Document

• I can equally partition a geoboard into halves, thirds, and fourths.

• I can name the equal shares using the words half, third, and fourth.

• I can explain that equal shares of identical wholes need not have the same shape.

• Virtual Manipulatives

  • Geoboard

Lesson 5:  Partitioning Memory (Day 1 of 2)

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2nd Grade Unpacking Document

• I can draw rectangles and circles and partition them into two, three, or four equal shares.

• I can identify shapes that have been equally partitioned.

• Virtual Manipulatives

  • Geoboard

Lesson 6:  Partitioning Memory (Day 2 of 2)

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2nd Grade Unpacking Document

• I can draw rectangles and circles and partition them into two, three, or four equal shares.

• I can identify shapes that have been equally partitioned.

• Virtual Manipulatives

  • Geoboard

Lesson 7:  Paper Quilts

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2nd Grade Unpacking Document

• I can partition squares into halves and fourths, and label the parts. 

• I can explain that equal shares of identical wholes need not have the same shape.

• Virtual Manipulatives

  • Geoboard

Lesson 8:  Picture This!

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2nd Grade Unpacking Document

• I can draw, model, and describe equal shares.

• Virtual Manipulatives

  • Geoboard

Lesson 9:  Park Design

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2nd Grade Unpacking Document

• I can draw shapes and equipartition them in different ways.

• Virtual Manipulatives

  • Geoboard

Lesson 10:  Wholes and Parts

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2nd Grade Unpacking Document

• I can create a whole when given one equal share.

• I can describe a whole as two halves, three thirds, or four fourths.

• Virtual Manipulatives

  • Geoboard

Lesson 11:  Attribute Sort

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2nd Grade Unpacking Document

• I can describe attributes of shapes. 

• I can sort shapes based on a specific attribute.

• Video Links

  • Khan Academy Recognizing Shapes

Lesson 12:  Name That Shape

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2nd Grade Unpacking Document

• I can draw, create, and identify triangles, quadrilaterals, pentagons, and hexagons. 

• I can describe the defining attributes of shapes.

• Virtual Manipulatives

  • Geoboard

• Technology Resources

  • ABCya Dungeon Dash

Lesson 13:  Shape Sort

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2nd Grade Unpacking Document

• I can identify shapes based on the presence or absence of attributes.

• I can sort shapes based on the name of the shape.

• Video Links:

  • Identifying Two- Dimensional Shapes

Lesson 14:  What’s My Shape?

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2nd Grade Unpacking Document

• I can draw, build, and describe triangles, quadrilaterals, pentagons, and hexagons.

• Video Links:

  • Identifying Two- Dimensional Shapes

Lesson 15:  What’s In Your Net?

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2nd Grade Unpacking Document

• I can name and identify attributes of cubes and rectangular prisms.

• I can make a net of a cube and rectangular prism.

• Video Links:

  • Three Dimensional Shapes

  • NumbeRock 3D Shapes

  • NumbeRock 3D Shapes

• Technology Resources

  • Geometric Solids

Lesson 16:  Net Comparison

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2nd Grade Unpacking Document

• I can create nets for cubes, and identify the features that nets of cubes always have. 

• I can compare the net of a cube to the net of a rectangular prism.

• Video Link

  • What is a Net?

  • Shape Net Practice

• Technology Resources

  • Geometric Solids

Lesson 17:  Build That Shape

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2nd Grade Unpacking Document

• I can create 2-D and 3-D figures. 

• I can identify attributes of 2-D and 3-D figures, and compare and contrast 2-D and 3-D figures.

• Virtual Manipulatives

  • Geoboard