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Area of Composite Figures using Side Lengths - Interactive Google Slides
(53 ratings)$4.00
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Your students will love learning to find the Area of Composite Figures using the hands-on activities in these Google Slides. You will love the ready-made Video Lesson to learn or review finding the area of composite figures! Students will learn how to calculate the area of combined rectangles using their side lengths. This Simple and Easy-to-Use lesson is designed for 3rd grade students and aligns to CCSS 3.MD.C.7d.
This resource is excellent to use to guide whole class lessons or to use for math stations, review or tutoring.
What Teachers are saying:
⭐⭐⭐⭐⭐ This is an OUTSTANDING resource! I was having a hard time getting students the extra practice online with such a hard concept and this truly delivered! The instructional video is an added bonus, and the students had as much of a hands-on experience that they could get. I highly recommend this resource for additional practice and engagement on finding the area of irregular shapes! -Graphic Tee Teacher
⭐⭐⭐⭐⭐ My students loved using this resource during our area unit. They also loved the video. Great Resource!!! -Araceli V.
The Video Lesson:
- Teaches how to find the area of composite figures
- Teaches students how to decompose irregular (rectilinear) figures into rectangles
- Shows students how to find the area of each rectangle and add them together to find the area of the larger figure
- Walks students through the Google Slides activities they will complete
- Approximately 6 minutes
- Student Devices must have access to You-Tube to view the Video Lesson
⭐Many of the slides are self-checking, so students can work through the activity with confidence.
Activities Include:
- Engaging practice with Movable Pieces
- Matching Activities
- Application of Learning in Real-World Word Problems
- Word Problems have optional Step-by-Step support
What's Included?
- Video Lesson with Activity Instructions
- 12 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.3.MD.C.7d Recognize area as additive. Find areas of rectilinear figures by decomposing them into non-overlapping rectangles and adding the areas of the non-overlapping parts, applying this technique to solve real world problems.
This is Lesson 5 in a comprehensive bundle that covers all the area topics your students need to learn!
Save 30% on this resource by purchasing the Digital Area Bundle!
Lessons in the Digital Area Bundle Include:
Area Lesson 1: Understand the Concept of Area by filling Rectangles with Square Units
Area Lesson 2: Find Area by Multiplying the Number of Rows by the number of Unit Squares in Each Row
Area Lesson 3: Multiplying Whole Number Side Lengths to find Area
Area Lesson 4: Area of Composite Figures using Unit Squares
Area Lesson 5 *This Resource*: Area of Composite Figures using Side Lengths
Area Lesson 6: Use Area Models to Prove the Distributive Property
You may also be interested in this coordinating Perimeter Bundle.
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Teacher reviews
“Really good for early finishers, they also love anything they can do on the computer!”
“I loved using these slides for my third graders so much that I purchased additional sets. Thanks!”
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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
- 4.88Store rating after 24.5K reviews
- 1Follower
- Wal-Mart Teacher of the Year Educator of the Year, Henderson Elementary Central Unified Above and Beyond the Call of Duty Award Y101 Teacher of the Week
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