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## Our Geometic World

By Lisa Liu, October 24, 2006

• Elementary School

### Category

• City of Neighborhoods

### Subject Area

• Arts
• Language Arts
• Mathematics
• Social Studies

### Lesson Time

Three sixty-minute class periods

### Introduction

This lesson is comprised of three parts that integrate math, writing, and design. It challenges students to apply mathematical concepts to real life objects. Part one of the lesson is to take a geometry walk around the neighborhood. The goal is to have students identify various polygons and lines in buildings, nature, and any objects they encounter. This activity helps to engage kinesthetic and visual learners. It helps all students to see math in their world.Having completed the walk, students will design a building using various geometric patterns, shapes and lines. Students will be asked to balance the functionality of their design with adding details to heighten the aesthetics of their buildings. The final aspect of the lesson is to have students complete a descriptive writing of their building. The goal is for students to be able to add enough details using adjectives and including distinguishing characteristic of their design.

### Objectives

Students will be able to:
• identify polygons, parallelograms, parallel lines, and intersecting lines, and angles in their environment
• classify shapes
• create a design of a building using geometric shapes
• compose a descriptive essay
• evaluate peer writing

### Resources

• Geometry Worksheet

### Materials

• construction paper
• templates of various geometric shapes
• writing paper

### Vocabulary

* polygon * parallelograms (including rectangle, square, rhombus and parallelogram)
* lines * line segments * parallel lines * intersecting lines * acute angle * obtuse angle * right angles

### Assessment

Students will be assessed based on:
• accurate classification of shapes and lines on geometric worksheet
• oral responses to teacher questions
• usage of geometric shapes and lines to construct building
• writing assessment based on the state's standards Writing Rubric in the areas of: style, organization, conventions, focus, and content.

### Enrichment Extension Activities

• Students can go on a geometric scavenger hunt at home or other places in their community.
• Students can create a shape collage based on pictures, magazines, and other publications.

### Teacher Reflection

Overall, students enjoyed the lesson. It was very important that they had a chance to connect their textbook learning to their own world. The students were successful at correctly categorizing geometric shapes. It was particularly helpful to kinesthetic learners by allowing them to move, touch and feel so many different objects. Students need to learn to add more details to their writing.If I were to implement this lesson again, I would have students travel in small groups. That wasn’t feasible due to the lack of adult volunteers. It would have allowed students do more in-depth examination. However, it was good to know that the walk could work as a class. Another change would be to have the students pick one building they would like to sketch. They would then label different geometric elements in the design. This would take the place of the geometry worksheet where students sketched many different items. Some items fell into more than one category. Having one sketch would allow students to place multiple labels onto one feature to show that they understand that one shape can have more than one name. Ideally, it would have been nice if students had disposable cameras to take pictures with. They could then document their work using the pictures.