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

    Lesson Plan
    Grades: High School, 9th to 12th
    Geometry
    Congruence
    HSG-CO.D.12
    Use needlework to illustrate Euler Graphs.
    Lesson Plan
    Grades: 9th to 12th, High School
    Geometry
    Modeling with Geometry
    Congruence
    HSG-CO.A.1, HSG-MG.A.3
    Collect information about the national debt, plot the data by decade, and determine whether an exponential curve is a good fit for the data.
    Lesson Plan
    Grades: High School, 9th to 12th
    Stats & Probability
    Interpreting Categorical and Quantitative Data
    HSS-ID.B.6a
    Use right triangle trigonometry and the Pythagorean theorem to develop the law of cosines.
    Grades: 9th to 12th
    Geometry
    Similarity, Right Triangles, and Trigonometry
    HSG-SRT.D.10, HSG-SRT.D.11
    Create customized activity sheets for your classroom.
    Web Interactive
    Grades: High School, 6th to 8th, 3rd to 5th, PreK to 2nd, 9th to 12th, Pre K to 2nd
    Functions
    Geometry
    The Number System
    Num & Ops Fractions
    Measurement & Data
    Linear, Quadratic, and Exponential Models
    Use functions to model relationships between quantities.
    Solve real-world and mathematical problems involving area, surface area, and volume.
    Apply and extend previous understandings of numbers to the system of rational numbers.
    Graph points on the coordinate plane to solve real-world and mathematical problems.
    Develop understanding of fractions as numbers.
    Relate addition and subtraction to length.
    Analyze, compare, create, and compose shapes.
    Identify and describe shapes (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres).
    K.G.A.2, K.G.B.4, 2.MD.B.6, 3.NF.A.2a, 3.NF.A.2b, 5.G.A.1, 6.NS.C.6c, 6.NS.C.7a, 6.G.A.4, 8.F.B.5, HSF-LE.A.1b
    Extend the Fibonacci Sequence through an algebra exploration.
    Lesson Plan
    Grades: 6th to 8th, 9th to 12th
    Ratio & Proportion
    Functions
    Stats & Probability
    Analyze proportional relationships and use them to solve real-world and mathematical problems.
    Interpreting Functions
    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, HSF-IF.A.3, 7.RP.A.2a
    Create a custom spinner to examine experimental and theoretical outcomes.
    Web Interactive
    Grades: 9th to 12th, High School, 6th to 8th, 3rd to 5th, PreK to 2nd
    Stats & Probability
    Making Inferences and Justifying Conclusions
    Investigate chance processes and develop, use, and evaluate probability models.
    7.SP.C.5, 7.SP.C.6, 7.SP.C.7b, 7.SP.C.8c, HSS-IC.A.2
    Physical and virtual manipulatives are used to explore and discover conic sections by cutting a cone with a plane.
    Lesson Plan
    Grades: 9th to 12th, High School
    Geometry
    Expressing Geometric Properties with Equations
    HSG-GPE.A.1, HSG-GPE.A.2, HSG-GPE.A.3
    Investigate the properties of regression lines and correlation using an online interactive tool.
    Lesson Plan
    Grades: High School, 9th to 12th
    Stats & Probability
    Interpreting Categorical and Quantitative Data
    HSS-ID.B.6a, HSS-ID.B.6b, HSS-ID.B.6c, HSS-ID.C.7, HSS-ID.C.8
    Investigate the relationship between sides and angles in a triangle.
    Lesson Plan
    Grades: High School, 9th to 12th
    Geometry
    Congruence
    HSG-CO.C.10
    Use slope to approximate rate of change on a graph.
    Lesson Plan
    Grades: High School, 9th to 12th
    Functions
    Number & Quantity
    Linear, Quadratic, and Exponential Models
    Interpreting Functions
    Quantities
    HSN-Q.A.3, HSF-IF.B.4, HSF-IF.B.6, HSF-LE.B.5
    Explore an open-ended problem with multiple solutions and multiple entry points.
    Lesson Plan
    Grades: High School, 9th to 12th
    Geometry
    Geometric Measurement and Dimension
    HSG-GMD.A.3
    Use polydrons to build nets and create the most appealing fish tank.
    Lesson Plan
    Grades: 9th to 12th, High School, 6th to 8th
    Geometry
    Congruence
    Geometric Measurement and Dimension
    Solve real-world and mathematical problems involving volume of cylinders, cones, and spheres.
    Solve real-world and mathematical problems involving area, surface area, and volume.
    6.G.A.2, 6.G.A.4, 8.G.C.9, HSG-GMD.A.3, HSG-CO.A.1
    Find the coefficients for Pick’s Theorem.
    Lesson Plan
    Grades: 9th to 12th
    Geometry
    Algebra
    Congruence
    Reasoning with Equations and Inequalities
    HSA-REI.C.6, HSG-CO.D.12
    Offers a method for finding the slope of a line from its graph. 
    Lesson Plan
    Grades: 6th to 8th, High School, 9th to 12th
    Ratio & Proportion
    Functions
    Expression/Equation
    Analyze proportional relationships and use them to solve real-world and mathematical problems.
    Interpreting Functions
    Use functions to model relationships between quantities.
    Understand the connections between proportional relationships, lines, and linear equations.
    8.EE.B.6, 8.F.B.4, HSF-IF.B.6, 7.RP.A.2b
    Use research on the Amazon deforestation to determine whether it is occurring exponentially.
    Lesson Plan
    Grades: 9th to 12th
    Stats & Probability
    Interpreting Categorical and Quantitative Data
    HSS-ID.B.6a, HSS-ID.B.6c, HSS-ID.C.7
    Use humor to aid in the transition from two-column proofs to paragraph-style proofs.
    Lesson Plan
    Grades: 9th to 12th, High School
    Geometry
    Congruence
    HSG-CO.A.1
    Use right triangle trigonometry to develop the law of sines.
    Grades: 9th to 12th
    Geometry
    Similarity, Right Triangles, and Trigonometry
    Congruence
    HSG-SRT.C.6, HSG-SRT.C.8, HSG-SRT.D.10, HSG-SRT.D.11, HSG-CO.A.1, HSG-CO.B.8, HSG-SRT.B.5
    Investigate the patterns when a "plus sign" (a cross-shaped arrangement of five squares) is placed on the board in various locations.
    Lesson Plan
    Grades: 6th to 8th, High School, 9th to 12th
    Expression/Equation
    Stats & Probability
    Functions
    Use properties of operations to generate equivalent expressions.
    Summarize and describe distributions.
    Develop understanding of statistical variability.
    Apply and extend previous understandings of arithmetic to algebraic expressions.
    Building Functions
    HSF-BF.A.1a, HSF-BF.A.2, 6.EE.A.3, 6.SP.A.3, 6.SP.B.5c, 7.EE.A.2
    Assuming that the circumference of each circle below passes through the centers of the other two, and that the radius of each circle is 1, what is the total gray area?
    Problems
    Grades: 9th to 12th, 6th to 8th
    Geometry
    Geometric Measurement and Dimension
    Solve real-life and mathematical problems involving angle measure, area, surface area, and volume.
    7.G.B.4, HSG-GMD.A.1
    1 - 20 of 76 results
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