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  • Subtracting Integers on Google Slides

    This post shows the use of Google Slides to develop the concept of subtracting integers. Google Slides can be accessed here. Make a copy to use and edit it.

  • Adding Integers with +- Counters on Google Slides

    This post shows the use of Integers counters on a Google Slides document. Here is a link to a FREE copy of the Google Slides.

  • Subtracting a Negative – Why it Becomes Addition

    Subtracting a Negative – Why it Becomes Addition

    Here is a link to a Jamboard for presenting the transformation (you click on the negative sign and rotate and slide it). Here is a link to a video showing how this transformation. This video addresses the underlying concept of the transformation by showing an IOU being cancelled.

  • Intro to Subtracting a Negative Integer by Canceling an IOU

    Intro to Subtracting a Negative Integer by Canceling an IOU

    Link to the Jamboard Link to a YouTube video showing how it works Link to a Facebook Reel showing how it works.

  • Prerequisite Skills and Current Content

    The effort to provide intervention to fill in gaps is challenging for different reasons. One reason is the effort to balance support for current content while filling in gaps. This post shows an example of how to fill in gaps while working through the current topic. Overview Various rubrics used to assess teacher instruction includes…

  • Introduction to Adding Integers

    Introduction to Adding Integers

    Operations on integers and integers in general is challenging for many students. Negative numbers are abstract. Whole numbers and fractions can be represented with images. The activity presented draws upon student prior knowledge of thumbs up and down in a vote to make negative more accessible. The following images are from a Jamboard. Here are…

  • Introduction to Absolute Value – Distance from Home

    Introduction to Absolute Value – Distance from Home

    Here is a Jamboard to introduce the concept of absolute value (make a copy and you can edit – see photo at bottom of this post). Start with prior knowledge of how many houses a child is from home. Emphasize that the number of houses is positive. Change the setting from a row of houses…

  • Multiplication with Integers: a Meaning Making Approach

    Multiplication with Integers: a Meaning Making Approach

    I previously tackled the difference between the ” – ” symbol used to represent a negative and a subtraction problem. This post gets into multliplication through the context of buying a Wendy’s frosty. One comment to preface what is presented here. Negative numbers are abstract and challenging for many students. Multiplying by negatives is even…