# 4th Grade Area - Find the Missing Side Length - TEKS 4.5D, CCSS 4.MD.A.3

- PDF
- Google Apps™

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### Description

This resource includes a **Video Lesson** and **Google Slides** activity for **Finding the Missing Side Length **in** Area** problems**. **This resource is excellent for **Distance Learning**. Students will learn how to use long division to find the missing side length when the area and width of a rectangle are known.

This **Simple **and** Easy-to-Use **resource is designed for 4th grade students and aligns to these standards: TEKS 4.5D and CCSS 4.MD.A.3.

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**This is Lesson 2 in the Perimeter and Area Series**

- Lesson 1: 1-step Perimeter and Area Problems
**Lesson 2: (This resource) 1-step Area Problems with a missing side length (Most problems use long division)**- Lesson 3: Using a ruler to find Area and Perimeter
- Lesson 4: 2-step Area and Perimeter Problems - finding the missing side length using models
- Lesson 5: 2-step Area and Perimeter Problems with Comparison phrases to find the missing length (i.e. the length is twice the width).

⭐ **Student Devices must have access to You-Tube to view the Video Lesson **⭐

**The Video Lesson:**

- Uses related multiplication and division facts to teach that a missing side length is a missing factor multiplication problem that can be solved using division
- Models using long division to solve problems
- Walks students through the Google Slides activities they will complete
- Is approximately 9 minutes

⭐Many of the **slides are self-checking**, so **students can work** through the activity **with confidence**.

**Topics and Activities Include:**

- Creating related facts using the Length, Width and Area of Rectangles
- Long Division support with Self-Checking boxes half-way through and all the way through Long Division problems
- Fun Google Slides Activities with
**movable pieces** - Application of Learning in Real-World Word Problems
- Word Problems have optional Step-by-Step support

**What's Included?**

- Video Lesson with Activity Instructions
- 10 Interactive Activities
- Teacher Key in separate Google Slides™ doc that can be assigned to students to check their work at home with their parents
- PDF with a link to make a copy of the Google Slides™ in your Google Drive
- Directions on how to assign the Google Slides™ activity to students in Google Classroom™

**Standards Alignment**

**CCSS.4.MD.A.3 **Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor.

**TEKS 4.5D **Solve problems related to perimeter and area of rectangles where dimensions are whole numbers.