Activities

Grades:

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Your search returned these 27 highlighted activities...

	Advanced Data Grapher		Analyzing Data with Box Plots, Bubble Graphs, Scatterplots, Histograms, and Stem-and-Leaf Plots
	Algebra Tiles		Manipulating Algebra Tiles to Solve Equations, Substitute in Expressions, and Expand and Factor
	Coin Box		Manipulating Coins using an Array Representation
	Congruence Theorems		Proving the Triangle Congruence Theorems by Trying to Create Congruent and Non-congruent Triangles
	Conic Section Explorer		Exploring How to Create and Graph the Various Conic Sections
	Data Grapher		Analyzing Data with Bar Graphs, Line Graphs, Pie Charts, and Pictographs
	Deep Sea Duel		Playing a Strategy Game That Requires You to Select Cards with a Specified Sum Before Your Opponent
	Dynamic Paper		Creating Customized Activity Sheets for Your Classroom
	Equivalent Fractions		Creating Equivalent Fractions by Shading Squares and Circles
	Factorize		Dividing Numbers into Two Factors and Building Arrays to Represent Each Factorization
	Fractal Tool		Exploring Iteration and Patterns in Shapes and Numbers with Fractals
	Fraction Models		Exploring Several Different Representations for Fractions
	Function Matching		Finding the Function Expression That Matches a Generated Function Graph
	Geometric Solids		Manipulating Various Geometric Solids and Investigating Their Properties
	Graph Creator		Creating and Exploring Vertex-Edge Graphs
	Grouping and Grazing		Counting, Adding, and Subtracting by Grouping Cows
	Interactive Calculus Tool		Investigating Tangent Lines, Derivatives, and Area under a Curve
	Limits		Explore Visual Representations of Geometric Series and Their Limits
	Okta's Rescue		Counting and Subitizing by Playing a Game
	Pan Balance – Expressions		Investigating the Concept of Equivalence by "Weighing" Numeric and Algebraic Expressions
	Pan Balance – Numbers		Finding Equivalent Numerical Expressions Using a Balance Scale
	Pan Balance – Shapes		Exploring Relationships Among the Weights of Various Objects by Placing Them on Either Side of a Balance
	Random Drawing Tool - Sampling Distribution		Exploring Sampling Distributions by Drawing Multiple Numbers Many Times
	Tessellation Creator		Creating Patterns to Cover the Screen Using Regular Polygons
	Turtle Pond		Estimating Length and Angle Measure While Guiding a Turtle to a Pond Using Computer Commands
	Two Terrains		Determining the Best Path for a Vehicle That Can't Go as Fast when It Travels Off‑road
	Vector Investigation: Boat to the Island		Adjusting the Magnitude and Direction of a Velocity Vector to "Drive" a Boat

...as well as these additional 81 activities...

	A Geometric Investigation of (a + b)2		Exploring an Interactive Demonstration of Why (a + b)2 = a2 +2ab + b2
	Adjustable Spinner		Creating a Spinner to Examine Experimental and Theoretical Outcomes
	Affine Recurrence Plotter		Investigating Affine Recurrence Relations of the Form A(n) = b × A(n – 1) + c,  A(0) = a
	Affine Recurrence Spreadsheet		Investigating Affine Recurrence Relations with a Pre‑loaded Spreadsheet
	Algebraic Transformations		Exploring Commutativity and Associativity Within a Geometric Situation
	Angle Sums		Exploring the Sum of the Interior Angle Measures for Various Polygons
	Area Tool		Investigating How the Base and Height of Trapezoids, Parallelograms, and Triangles Affect Area
	Bobbie Bear		Using Counting Strategies to Make Outfits for Bobbie Bear with Different Colored Shirts and Pants
	Box Plotter		Creating a Customized Box Plot with Your Own Data, or Display a Box Plot of an Included Set of Data
	Canada Data Map		Using Color-coding to Represent Canadian Province and Territory Information, Such as Population, Area, and Gasoline Usage
	Chairs		Exploring the Number of Chairs Needed when Tables Are Arranged in a Restaurant
	Circle Tool		Comparing the Circumference and Area of a Circle to Its Radius and Diameter
	Codes		Exploring Substitution Ciphers by Encoding and Decoding Text Messages
	Compound Interest Simulator		Investigating Savings Account Earnings, Credit Card Debt, and a Stock Market Simulation
	Computing Pi		Comparing Two Methods for Computing Pi
	Concentration		Playing a Matching Game with Different Representations of Equivalent Items
	Cube Nets		Examining Various Two-dimensional Figures to Determine Which Ones Can Be Folded into a Cube
	Cubes		Determining the Volume of a Box by Filling It with Cubes, Rows of Cubes, or Layers of Cubes
	Cyclic Figures		Recognizing Rotation Symmetry in Figures and Examining Various Rotation Symmetries
	Diagonals to Quadrilaterals		Investigating the Quadrilaterals Formed by Various Arrangements of Diagonals
	Dihedral Figures		Recognizing Dihedral Symmetry and Reflections in Figures and Examining Various Symmetries
	Distance to Horizon		Investigating the Relationship Between Your Elevation and the Distance You Can See to the Horizon
	Electronic Abacus		Exploring an Abacus Model for Representing Numbers and Performing Addition
	Factor Game		Exercising Your Factoring Ability Against a Human or the Computer
	Fire		Simulating the Spread of a Wildfire Using Probability
	Five Frame		Practicing Counting and Adding by 5s
	Flowing Through Mathematics		Simulating Water Emptying from a Tube and Investigating the Speed at Which the Water Flows
	Fraction Game		Exploring Relationships Among Fractions While Playing an Interactive Game
	Free Ride		Exploring Fractions Using the Context of a Bicycle and Gear Ratios
	Frieze Patterns		Experimenting with Frieze Patterns and the Transformations That Constitute Each of Their Categories
	Half Angle		Discovering Where the Incenter of a Triangle Occurs
	Hexagon Island		Finding the Point Within a Regular Hexagon Where the Sum of the Distances to the Sides is Minimum
	Histogram Tool		Creating a Customized Histogram with Your Own Data or an Included Set of Data
	Hospital Locator		Investigating the Placement of a New Medical Center So It is Mutually Convenient to Three Cities
	How Many Under the Shell		Exploring Addition and Subtraction Relationships with Okta
	Interactive Geometry Dictionary: Areas in Geometry		Investigating and Understanding the Area of the Rectangle, Parallelogram, and Triangle
	Interactive Geometry Dictionary: Lines in Geometry		Investigating and Understanding Lines, Segments, and Rays
	Isometric Drawing Tool		Creating Dynamic Drawings on an Isometric Dot Grid
	Isosceles Triangle Investigation		Investigating the Relationship Between the Area of an Isosceles Triangle and the Length of Its Base
	Light Bounce		Investigating Rational Functions with the "Light It Up" Game
	Line of Best Fit		Plotting a Set of Data and Determining a Line of Best Fit
	Linear Regression I		Investigating a Regression Line and Determining the Effects of Adding Points to a Scatterplot
	Mars Earth Orbit - Actual		Exploring the Path Made by Mars in Relation to the Earth
	Mars Earth Orbit - Model		Exploring the Path Made by Mars in Relation to the Earth Using Rounded Data
	Mean and Median		Investigating the Mean, Median, and Box-and-whisker Plot for Sets of Data That You Create
	Mirror Tool		Creating Reflection Symmetry with a Mirror
	Mixtures		Exploring Mixture Problems Using Colored Circles from Two Different Piles
	Nim Games		Playing Several Different Versions of Nim Against the Computer
	Octagon Island		Finding the Point Within a Regular Octagon Where the Sum of the Distances to the Sides is Minimum
	Paper Pool		Shooting a Pool Ball to Predict Patterns
	Parallelogram Exploration Tool		Investigating Parallelogram Areas
	Patch Tool		Designing a Pattern Using Geometric Shapes
	Power of a Point		Exploring Various Relationships That Occur Because of Points of Intersection
	Primary Krypto		Playing a Game with Five Number Cards and Arithmetic Operations to Create a "Target" Number
	Product Game		Exercising Factor and Multiples Skills
	Proof Without Words: Completing the Square		Proving the Algebraic Technique of Completing the Square "Without Words" Using Geometry
	Proof Without Words: Pythagorean Theorem		Proving the Pythagorean Theorem "Without Words" Using Geometry
	Random Drawing Tool - Individual Trials		Exploring the Relationship Between Theoretical and Experimental Probabilities
	Robot Sketcher		Exploring Various Robot Arm Constructions, Using One, Two or Three Arms That Rotate or Slide
	Scale Factor		Exploring the Relationship Between Two Shapes as the Scale Factor Changes
	Shape Cutter		Drawing, Cutting, Sliding, Turning, and Flipping Shapes
	Shape Sorter		Sorting Shapes According to Their Properties Using Venn Diagrams
	Shape Tool		Drawing, Coloring, Pasting, Slicing, Rotating, Reflecting, Expanding, and Contracting Various Shapes
	Soccer Problem		Exploring a Soccer Player's Angles when Kicking a Ball at the Goal
	Soda Cans		Examining the Result when Circular Cans Are Arranged in a Rectangular Container
	Sound Sketch Tool		Sketching and Quantifying Sound Using Two Different Representations
	Sound Wave		Exploring the Dynamics of a Sound Wave, Including Pitch, Tone, Frequency, Intensity, and Loudness
	Square Graphs		Exploring the Graphs That Result when Two Characteristics of a Square Are Plotted
	Squares on a Triangle		Exploring a Geometric Interpretation of the Law of Cosines
	State Data Map		Using Color-coding to Represent State Information, Such as Population, Area, and Gasoline Usage
	Ten Frame		Practicing Counting and Adding by 10s
	The Quotient Café		Dividing Using the Method of Partial Quotients (aka, "Chunking")
	Times Table		Multiplying Single-digit Numbers with an Interactive Multiplication Table
	Tower of Hanoi		Solving a Puzzle by Moving Disks from One Peg to Another
	Triangle Classification		Classifying Triangles in the Plane by Their Sides and Their Angles
	Triangle Island		Finding the Point Within an Equilateral Triangle Where the Sum of the Distances to the Sides is Minimum
	Trigonometric Graphing		Exploring the Amplitude, Period, and Phase Shift of Various Trigonometric Functions
	Trout Population Calculator		Exploring the Growth or Decline of a Trout Population in a Restocked Pond
	Tube Viewer Simulation		Simulating the Effect of Viewing an Image Through a Tube
	Vector Investigation: Dual Vector, Airplane Storm Chaser		Adjusting the Magnitude and Direction of Vectors to "Fly" a Plane
	Volt Meter		Using the Voltage of Batteries to Explore Positive and Negative Numbers

The National Council of Teachers of Mathematics is a public voice of mathematics education, providing vision, leadership, and professional development to support teachers in ensuring mathematics learning of the highest quality for all students. The views expressed or implied, unless otherwise noted, should not be interpreted as official positions of the Council.