4th Grade Area - Find the Missing Side Length - TEKS 4.5D, CCSS 4.MD.A.3
(7 ratings)$4.00
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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.
Save 30% by purchasing the 4th Grade Perimeter and Area Bundle!
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.
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Teacher reviews
“This was a great resource to use as support for my lesson.”
“This is a great resource to teach this skill. Our state tests this skill with facts up to 10 x 10 for third graders. I would love to see a version of this to teach 3rd graders without the need for long division.”
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October 7, 2026"This resource is an absolute game-changer for teaching Unit 3 in 4th grade! If you are feeling overwhelmed by the dense teacher manuals or spending hours trying to format your own presentations, do yourself a favor and buy this right now. The slides are completely no-prep, beautifully designed, and student-friendly. Every single lesson includes clearly stated learning targets right at the beginning, which keeps my students focused and aligns perfectly with our instructional goals. I especially love the embedded anchor charts and direct hyperlinks—they save me so much transition time during lessons because I don’t have to hunt for materials across different tabs or manuals. The included student worksheets and guided practice prompts provide wonderful scaffolding that keeps student engagement high and supports all learners, including my emerging bilinguals and students who need extra support. It breaks down complex concepts into bite-sized, manageable pieces without watering down the curriculum. Thank you for creating such a polished, time-saving, and effective teaching tool! It has easily cut my planning time in half and made our daily lessons run seamlessly."
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Meet the Seller
In addition to my work in education, I also run a STEM-based Christmas Light Show business. When I'm not creating new math resources or working with teachers, I'm designing and fabricating light shows sequenced to music with my husband and our team. That business came about after our family was featured on ABC's The Great Christmas Light Fight. My son attends the University of Texas, Austin and I'm currently soaking up every last minute with my daughter, a high school senior.
San Antonio, Texas
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