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discounted price

  • Sales Price Entry Point

    Sales Price Entry Point

    A pseudo- concrete representation of a sales price problem is shown below. This is what I use as an entry point for teaching these problems. The entire shape represents the total price of $80. This is 100%, which in student language is “the whole thing.” The discount rate is 25%. Cut with scissors to lop…

  • Assessment for General Curriculum Math Topics

    In special education there is a tool called a task analysis. It is a formal approach of identifying the steps taken to demonstrate mastery of a skill. For example, putting on shoes with Velcro straps involves the following steps: get shoes, sit on chair, match shoes with feet (right to right), insert foot into respective…

  • Scaffolding Percent Discount and Tax

      This is a snippet of a handout that is a follow up to a previous percent activity that I posted. It walks students through the mathematical steps including subtracting the price. I found that the cutting part of the previous activity was effective but the steps were not as clear. This handout is an…

  • Percent Discount Scaffolded and Concrete

    I continue to be surprised at how much of a challenge computing percent discount is for students. It’s prior knowledge. If you ask them to explain what a discount is in their own words you’ll get a response like “it makes something cost less.” The students may even have mastery of computing a percent of…