Students will be able to define and describe figuras planas.

Materials

Whiteboard and markers

Examples of figuras planas (such as triangles, squares, and circles)

Construction paper and scissors

Warm-up

Ask the students if they have ever seen or played with any figuras planas.

Ask them to name some figuras planas they might have seen.

Write the names of the figuras planas on the whiteboard.

Direct Instruction

Explain to the students that figuras planas are flat shapes that can be folded or cut to make 3-dimensional shapes.

Show the students some examples of 3-dimensional shapes, such as a cube or a pyramid.

Explain that we can make these 3-dimensional shapes by folding and cutting the figuras planas.

Give each student a square piece of paper and a pair of scissors.

Have them fold the square paper in half diagonally and then cut along the diagonal to make a triangle.

Have them repeat this process with the other diagonal of the square paper to make a second triangle.

Have them repeat this process with the remaining square paper to make a third triangle.

Show the students how to fold the triangles in half and then cut along the edges to make a cube.

Guided Practice

Give each student a different set of figuras planas and have them work with a partner to make a 3-dimensional shape using the instructions above.

You may need to help students with the folding and cutting at first, but encourage them to try it on their own as they get more comfortable with the process.

As students work, walk around the room and provide support as needed.

Independent Practice

Have students choose a different set of figuras planas and create a 3-dimensional shape using the instructions above. This time, they should not use any scissors or glue. Instead, they should try to come up with a way to fold and cut the figuras planas to make their desired shape.

Encourage students to be creative and think outside the box as they work on this task.

Closure

Have students share their 3-dimensional figuras planas shapes with the class. Ask them to explain how they made their shapes and ask for feedback on their ideas and designs.

Review the concept of figuras planas and how to create 3-dimensional shapes using them.

Assessment

Observe students as they work to create their own 3-dimensional figuras planas shapes and provide feedback and support as needed.

Have students turn in their completed figuras planas shapes for review and assessment.

Use the checklist below to evaluate student understanding of the concept:

Can the student identify and name 3-dimensional figuras planas shapes?

Can the student create a 3-dimensional figuras planas shape using only 2-dimensional figuras planas shapes?

Does the student demonstrate understanding of the concept when explaining her own 3-dimensional figuras planas shape?

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