• Recent Lessons

    Construct perpendicular bisectors, find circumcenters, calculate area, and use proportions to solve a real world problem.

    Lesson Plan
    Grades: High School, 9th to 12th
    Explore Armstrong numbers, identify all Armstrong numbers less than 1000, and investigate a recursive sequence that uses a similar process.
    Lesson Plan
    Grades: High School, 6th to 8th
    Students investigate the number of chairs that can be placed around an arrangement of square tables.
    Lesson Plan
    Grades: 3rd to 5th
    Algebraic Thinking
    Solve problems involving the four operations, and identify and explain patterns in arithmetic.
    Answers the questions, "When will I ever need to solve a system of equations?"
    Lesson Plan
    Grades: High School, 9th to 12th
    Reasoning with Equations and Inequalities
    Creating Equations
    HSA-CED.A.3, HSA-REI.C.6
    Measure the length and width of a rectangle using both standard and non-standard units of measure.Then, discover that the ratio of length to width of a rectangle is constant.
    Lesson Plan
    Grades: 6th to 8th
    Ratio & Proportion
    Stats & Probability
    Analyze proportional relationships and use them to solve real-world and mathematical problems.
    Investigate patterns of association in bivariate data.
    Understand ratio concepts and use ratio reasoning to solve problems.
    6.RP.A.1, 8.SP.A.1, 8.SP.A.2, 7.RP.A.2a
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