Lesson 19 Day 2 Slides (mastery)

Leeza·

Geometry

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At a Glance

Grade Level3rd Grade

SubjectGeometry

Original Prompt

Create a slide deck presentation that teaches students how to find missing side lengths using perimeter. Include the learning objective, review of perimeter, worked examples showing two methods (algebra and arithmetic), guided practice problems, and independent practice problems. Match the visual style with blue/green accent colors, clear titles, and step-by-step explanations. Make it engaging for 3rd grade students using louisiana educator rubric The following is a summary of a document named

This teacher guide is designed for a lesson focusing on finding missing side lengths using the concept of perimeter. The lesson is expected to last between 45 and 60 minutes and is aligned with state standards for mathematical problem-solving involving the perimeters of polygons. Students will work in groups to create rectangles with various lengths of string or rope that represent known perimeters and will need to determine the unknown side lengths. The guide includes key vocabulary such as 'perimeter,' 'side length,' and 'unknown side.' It provides examples and methods for finding missing sides through both algebra and arithmetic approaches, as well as real-world applications through practical problems such as the Garden Fence Problem and the Picture Frame Problem. Students will work collaboratively and engage in activities that enhance their understanding of perimeter and its application in different scenarios.