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