Area Composite Figures (Rectilinear Figures) Video Mini Lesson 4th 5th Grades

Your 4th grade math students will love learning with this video! This “I Solve You Solve” area of rectilinear figures (you may refer to these as composite shapes) math video mini lesson will help your students gain a better understanding of the following standard: 4.MD.A.3 - Apply the area and perimeter formulas for rectangles in real world mathematical problems. More specifically, students will be able to 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 the technique to solve real world problems.

In this video I use the term 'rectilinear figures' because that is how my standard refers to it. You might also use the term composite figures. Basically, I am using composite figures, but they are all rectilinear (all sides meet to form 90 degrees) - meaning the kids are breaking apart multiple rectangles and not breaking apart shapes such as triangles. They are finding the area of composite figures, but all figures are rectilinear. :-)

NOTE- In this particular video, students are not only taught rectilinear area, but they are shown how to find missing measurements on sides. They will have to apply that skill on the "You Solve" portion of their activity.

NOTE 2: If you are trying to share this on your stream with your kids in Google Classroom, you may find it easier to save the .mp4 to your Google Drive and then upload it straight from your drive. Uploading from your drive is given as an option. The longer the video, the longer it will take to upload. Once it is in your google drive though, it is really fast to share with students.

**** Find other I Solve You Solve videos HERE.

The video and activity in this pack can be used in a variety of ways. You can use it for digital learning as long as everything is uploaded behind a password protected site, such as a school portal where students have to enter passwords or to Google Classroom where students must log in. The video can NOT be uploaded to a public website such as Youtube. The video is intended for one teacher and her classroom. If more than one teacher is going to be using it, please make sure you purchase the correct number of additional licenses.

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What is an “I Solve You Solve” lesson? In an “I Solve You Solve” lesson, a problem is presented using the video. The problem is then solved step by step using graphics and narration. Next, a problem is presented to the students for them to solve. When students go to solve their problem, a character is introduced, and students are asked to help the character solve the problem. The character in this video is Mrs. Reynolds.

What is included in this area of rectilinear figures mini lesson activity pack?

• 14 Minute Mini Lesson Video – The video is an Mp4 and it will need to be downloaded and saved to your computer. Please watch the preview video above to get an idea of how things are presented.
• A pdf file that presents 4 multiple choice questions. Students will be finding the area of a rectilinear figure (Mrs. Reynold’s reading center). This can be printed and given to each student to complete.
• BONUS – I have also included the same 4 questions as a Google Form quiz. If you use Google Classroom, you can use the link given in the file to make a copy of the quiz for your class to complete

What is presented in the video?

The definition of area is presented. The formula for the area of a rectangle is reviewed. The definition of rectilinear figures is given along with several examples. Students are guided through how to find missing measurements from a couple of sides. Step by step directions, along with visuals and narration, are given in order to show how to find the area of a rectilinear figure. After watching how to solve for area of a rectilinear, students are asked to do the “You Solve” part, which is to help Mrs. Reynolds find the area of her reading center (a rectilinear figure).

How might I use this rectilinear area activity?

Some suggestions are:

• Upload the rectilinear area video to Google Classroom during digital learning for your students to watch. Then have students complete the 4 questions.
• Project the video in the classroom for the whole class to watch together to introduce a lesson. Continue with other activities for the day. Then have them complete the printable version of the 4 questions.
• Project it to finish out a daily lesson, and then use it as a formative assessment.
• Have students watch and complete as a math center activity.
• Have students watch as their homework and be ready to discuss the next day.
• Use it however you would like with your students, but it may not be posted for public display on the internet.

I hope your students love learning about finding the area of composite figure, more specifically, rectilinear figures. :-)

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**Please....if you ever notice any mistakes, just send me a quick message. I appreciate you allowing me the opportunity to correct things before you rate the product. I can get things corrected in a jiffy, and you can redownload. This might include things like spelling something incorrectly due to a typo, putting an incorrect number, etc. This rarely happens but just in case, I appreciate you giving me then chance to get it corrected for you before you rate the product. Thank you :-)