How Did The Geometry Teacher Feel About Octagons
How Did The Geometry Teacher Feel About Octagons – Teaching geometry can be confusing. In a way, it’s very simple. I mean, it’s just shapes!! However, in others it can be very difficult. First, how deep should you go? What do your children need to know? Second, OH MY WORD! GAH! SO THE MONK.
Dive in and take a closer look at 2D (planar) shapes. The next post will focus on 3D shapes!
How Did The Geometry Teacher Feel About Octagons
Georgia has developed a set of frameworks that review each standard and provide ideas and resources for each math concept. It also breaks down the assessment so teachers can be confident they are meeting the assessment’s expectations for students. I liked this version because I found it very user-friendly for teachers.
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I cut and paste the student expectations into a “prettier” and easier to read document. Rather download it for free here.
The list of end-of-unit expectations seems long, but there is much overlap. It is very clear that students need to be able to understand and use the properties of plane and solid shapes…which is a whole lot of vocabulary!
Although the standard may not specifically refer to polygons, it is built into the standard. Students need to know what a polygon is to even begin to understand 2D shapes. A polygon is a 2D shape consisting of straight lines and is closed. Input is a simple but meaningful way to help students understand and distinguish between a polygon and a non-polygon.
Students can then apply their learning to plane shapes and begin to learn basic plane shapes and attributes (sides, corners and angles). A good book for introducing plane shapes is The Greedy Triangle.
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This is a longer book, and I don’t usually read longer books as part of my little lesson in math workshop. More about this can be read here. However, this was a book I always took my time with. I usually read this book aloud on Fridays when I wasn’t following the math workshop model.
Each student received a geotablo and rubber bands. During the reading, the geoboards had to remain on the floor, and the students held their hands in their laps to hear. In the book, the main character (The Greedy Triangle) gets bored and wants to change shapes. It changes into different planar shapes. As the character adds new angles and modifies the new polygon, students draw the polygon on their geodesics and record it on the anchor chart.
These anchor charts may not be perfect, but they have been the real world in my classroom! These are the notes we made when we read the book. I tried calling on more students to draw their shapes so that other students could see that, for example, a hexagon could look different!
Once the students have learned the expressions for sides, corners, angles well, you can introduce the idea that there are several planes of quadrilaterals. This is another activity that is good for sorting.
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It is also well suited for assembling and disassembling 2D shapes. It’s just a fancy way of saying which shapes make up a hexagon or an octagon. Pattern cubes are wonderful for teaching drawing and breaking down planar shapes. A great (and practical) way to teach this is to have students stack pattern blocks on top of each other. So they can see that the shapes have just been made with the blocks on top.
One of my favorite activities to challenge students with is a type of puzzle. My school had a large package of plastic bags. If you don’t have access to plastic polygons, you can get a set of printable polygons from John Van De Walle here (and a million other black lines). Note that the 5-sided polygons are on the same page if you choose to use different colored copy paper when printing. Maybe the colors will give away the shape ;)!
Place the shapes and have the class sit in a circle around the shapes. Students will play a guessing game. Choose a thought form and inform the students. For example, “My magic shape has more than 4 sides.” Ask the students to get rid of the shapes that do not conform to the magic shape rules (triangles and rectangles). You can use all kinds of clues to sharpen your mathematical thinking in general (“It has the same number of angles as the value of a nickel.”). My kids loved this game. Make sure there is only one of these (in this case only one pentagon) when choosing a magic shape! LOL
Are you ready to turn around and try some of these activities? Grab your supplies and get ready!
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Want the activities in this post and MORE printables? Check out my Geometry Unit – everything you need and more!
If you want more ideas from me, follow me on Teachers Pay Teachers , Pinterest , and Facebook to catch all the freebies, ideas, and more!
Mandy Gregory was a teacher in 2007 and 2012. She taught fourth grade kindergarten in both general education and inclusion. She is currently a Level 1 Special Education Teacher. She is the owner and creator of Mandy’s Tips for Teachers (www.) and has over 13 years of teaching experience. She is married with two beautiful children.I find it very helpful to teach the levels of geometry before teaching fractions. I recently had an absolute blast teaching 2D geometry to my third graders. It’s a concept that lends itself to a lot of hands-on learning and project-based learning experiences. I was impressed with how quickly my students demonstrated proficiency at the Common Core levels. I admit, I was a little sad too, because I would have loved to have continued with this for much longer. My class is on fractions; however, I’m going to delve a little further into geometry by sharing some 3rd grade geometry activities that I’ve used and had great success with.
This post highlights my favorite geometry activities for 3rd graders. All involve hands-on learning that helps students build a strong conceptual understanding of basic geometry concepts. Read below to learn more about these geometry activities for 3rd graders!
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Geometry activities, games, installations, projects, posters, and other printables are great for teaching 2D shape concepts. They are suitable for 2nd and 3rd grade students. They provide fun learning experiences that can serve as an introduction or review for your students, depending on your curriculum and time of year. This pack contains over 100 printable pages that you can use to teach students about 2D geometry. You will have many resources to support your students’ learning! Learn more about these geometric resources below!
There are tons of geometry activities for 3rd graders included in this resource. Find out how I used them in my classroom below to inspire you to use them in your own.
Polygons with a person ended up being one of those lessons that I fool myself about every year. He was the perfect combination of an academic and a genius. It has gathered vocabulary and math concepts, character traits, writing skills and cutting and pasting all into one.
In the guided maths workshop we worked with polygons using all the games, activities and printouts in my geometry pack this week. As a result, my students knew the language and the features. However, this activity would also be a great start for the unit as they look at the properties of different polygons.
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I started by looking at what character traits are. We talked about how they are based on what someone says or does rather than how they look. I revealed a card with columns headed by the letters T, S, P, H, O, R. Together we listed one character trait that began with each of these letters. I told them that I chose those letters on purpose, but I wouldn’t tell them why until later in the day. Their interest and interest grew with curiosity.
I gave them a copy of the printed personality polygons and asked them to list 25 character traits that start with those letters in 15 minutes. I was surprised by their choice of words (concise, reluctant, exuberant, sophisticated, etc.). We got together as a class and gathered individual ideas into an anchor chart. As I added them to the list, we talked about the words and their meanings.
I printed the polygon prints from my geometry pack on plain paper and photocopier made 3 of each in different colors using construction paper. I sent them to my students along with a geometric graphic organizer. They used a graphic organizer to list the attributes of the shapes along with the places where the shape is located (ie, a triangle can be a sail on a boat, a slice of pizza, etc.). I decided to do this before I read the story because I wanted to
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