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Sara Dalton
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Area of Polygons Discovery Lesson on Dot Paper
I created these pictures to give my students the opportunity to explore the areas of triangles, parallelograms and trapezoids in reference to the area of rectangles. I made copies of these two slides from my lesson presentation for the students to write on ...

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Cliff Jumping and Absolute Value
I love to show this  video  of Laso Schaller's world record jump of 58.8 meters in Maggia, Switzerland. I use it when we start our unit on absolute value and it sparks a nice discussion about the distance above and below zero. I show the video and then ask ...

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A good problem is worth a thousand worksheets
I got this problem from openmiddle.com. All of my students worked on this problem very enthusiastically for most of the class period. It was truly a low floor  high ceiling task because every student in the class was dividing fractions (practicing that skil...

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3D Shapes Exploration
I like to set up an exploration of 3-D shapes at the beginning of the unit on volume and surface area. Last spring I set up six stations using the outdoor courtyard of our school and the students enjoyed hands on explorations of 3-D shapes in the sunshine. ...

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Multiplying Mixed Numbers Area Model
This area model created some rich mathematical discussions in my sixth grade class

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Mistakes are the Portals of Discovery
Mistakes are the Portals of Discovery --James Joyce I found this quote last summer when I was thinking about and preparing lessons for the first week of school. I knew that I wanted to spend some time talking about growth mindset with my students and emphas...

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Rate Exploration Activity
It was the first day back after the holiday break and I wanted to plan something active for my students to do. We were in the middle of the chapter on rates and so I was looking for an activity where student timed themselves doing different activities and t...

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Look What I Found at Dollar Tree!
I found these 3-D Geometric Shapes at Dollar Tree yesterday! I plan to use them during the first week of school to have students create a growth mindset classroom display!  I will give each student a face to color and write a growth message on! Dodecahedron...

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Coordinate Plane Graphing Pictures Hallway Display
One of the teachers I most admire gave me some advice when I was a new teacher. I asked him what is the most important thing a teacher can do to be effective and he said that he gets the best work and most significant learning from his students when he asks...

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Grocery Store Challenge
The middle school math curriculum is loaded with real world problems that adults use daily in their jobs and lives. One example is unit cost comparisons. When we study rates, my students learn how to calculate the unit cost of an item and compare it to simi...
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