# See It, Build It, Check It (2-D Version)

#### Curriculum – Geometry and Spatial Sense

• Sorting and classifying 2-dimensional shapes by attributes
• Classifying 2-dimensional shapes by geometric properties
• Relating shapes to other shapes, to designs, and to figures
• Composing and decomposing shapes
• Recognizing transformations
• Identifying congruent shapes

#### Context

Students are briefly presented with an outlined shape and then, must use Pattern Blocks to compose the 2-D image.

#### Materials

• 2-D shape outlines (template available), see Pattern Block Interview

#### Lesson Introduction

• Have students sitting at tables or desks and provide them with a sampling of Pattern Blocks.
• In the first round, present students with the outline of a 2-D shape (see image below) and have them construct the 2-D shape using Pattern Blocks.
• For subsequent rounds of the game, briefly present students with the outline of a 2-D shape (see image below) and then, hide it from view.
• Have students construct the 2-D shape using Pattern Blocks.
• Repeat Step 3 and Step 4 until most students have composed the 2-D shape.
• Facilitate a discussion around memory strategies and the different ways of
composing the same 2-D shape.

#### Lesson

• Tell students they will be making a bird nest.
• Ask students to collect items they want to use into the plastic container.
• Ask students to shape it into a nest.
• Place the container in our outdoor environment where a nest would usually be found.

#### Closure

• Discuss what it was like making a nest – finding the pieces, constructing the nest, etc.
• Discuss whether it would be easier for birds to make nests and why
• Monitor the nests over the week and make observations: if any nests have been occupied, if any materials are missing etc.

#### Extension

See It, Build It, Check It (3D Version) Lesson