Index of Lessons I Choose From List 1869 MIT Admissions Test Problem "3N+1" Problem A Basket Full of Eggs A "Cut and Paste" Geometric Proof of the Pythagorean Theorem A Problem for Young and Old Learners A problem from the Russian Math Olympiad A proof of the Pythagorean theorem using similar triangles A puzzle with the integers one through sixteen A puzzle with 1089 A "String Design" that We Can Draw: A Rhombus Inside a Hexagon A Three-Sided Cat for You to Draw A Traveler on a 6 by 6 Grid Addition Board Addition in kindergarten and first grade An arithmetical prodigy from 1899 An old merchant and his four children Ancient Knot Animations on the TI Angles of a Triangle: A Geometric Property through Paper Folding Areas and Borders Area & Perimeter Arithmetic With Manipulatives Average test grade Ball in a Box Banana Barrels, Casks and Other Curvy Containers Big numbers AKA Grains of rice on a chess board Block houses Building a scale-model doghouse Building a Skeletal Box according to Specifications Candles Candy Baskets Capacity Chambered Nautilus Checking if a number is a prime number Chinese Calendar Box Chords in a circle Circle, Square, and Triangle Clocks and Time Coins Coloring lines in a hexagon Colorful Triangles Congruent Triangles Counting Counting board for young learners Counting to 100 Creasing Paper Along Curves Cubes Cube with One Edge Sliced Off Cuisinaire Strips Cutting a rectangle Cutting a triangle Cutting a triangle into two pieces of equal area and equal perimeter Cutting an equilateral triangle Cutting Polyhedra Cylinder and Cone with the Same Heights and Base Diameters Deriving the formula for the area of a triangle Diagonal of a Square Dividing a square Division with remainder on the TI-108: Two examples Dogs, Cats, and Mice Dot-to-Dot Doubling and halving Drawing a rectangle Drawing a simple figure from verbal instructions Drawing Triangles Easy Squares Egg Dilemma (Part 1) Exponentiation Factoring Fancy Envelopes Finding a fraction between two fractions Five-pointed 3D Star Flipping coins Folded Paper Flower With Six Petals Four Bugs Four Cards Four Cubes From One Billion to Zero From one to one trillion Game of Circles and Stars Game of tens Giant Enchilada Halloween Hat Heads or tails? Hexagonal Puzzle Holiday Ornament Horse For Sale How Does a Calculator Compute The Square Root Of a Number? How many pentominoes? How Many Squares are on a Chess Board? How Many Triangles? (Parts 1 and 2) How Many Triangles In This Triangle? How to measure an angle without a protractor How to transform a rectangle to a different rectangle Hyperbolas & Ellipses I Can Guess Your Age! I Can Guess Your Age and House Number! Impossible Object Inscribed Triangle Interest Introduction to Measurement (First Grade) Irregular Polygons Julekurv AKA Valentine Basket Jump: A game of Solitaire with Ten Tokens Kites Lattice Multiplication Leaky Roof Long-eared critters Magic Beans Magic Folding Cube Magic Square Making Animals by Cutting Polygon Puzzles Making Blocks From Four Cubes Making Boxes Making an Involute Maze Mini Slot Machine Moons More dot-to-dot tasks More old word problems Multiplications "Done according to Adam Ries" Nathan tosses a coin 20 times Number Game with Dice Number Puzzle Old Shepherd's Will Olympic Rings One Third Painting houses (and Other Work Problems) Paradox of averages Partitoning A Square Pentagon Puzzles Phone number algebra Piggybank Playing with shapes Powerball 55 Pretty Gift Box Prime Numbers: The Sieve of Eratosthenes Properties Of A Box Pumpkins Puzzle with pebbles Pyramid into fourths Pyramid of Cubes Pyramid of Marbles Quadrilaterals Rectangles Regular Polygons with Equal Areas Related problems Right triangle Sequences of composite numbers: A contest Shapes of numbers Shapes of numbers using triangles Sharing Bread Sheep: An Old Puzzle Six Pyramids Sixteen Square Inches Solomon's Seal Sorting game Spirial (grades 5-8) Spirial (grades 5-8) The Spiral of Theodorus on the TI-83/84 Calculator Square and cubic units Square in a Triangle Straw Polyhedra Subtraction Algorithm Subtraction Counters Sum of All 100 Numbers in the Multiplication Table Sum of the First N Whole Numbers Sums of two squares Survivor on a Hexagonal Island Tatami Tea Boxes Temperature Conversions Tessellating a Circle The ladder and box problem "The Laughing Cow" Cheese Wedge Containers The Practical Value of Proofs The Zuni Rainbird Three fourths Three-Piece Circle Puzzle Tossing One Die Triangle to square: A hinged dissection Turning a rectangle into a square by dissection Twelve easy pieces Twenty-four Cubes Two Old Problems Two Shepherd Brothers Understanding Long Division Unusual Containers What next? What rectangle is this? Yin Yang Return to Mathematical Sciences Home

Authors' Notes Choose From List A Look at Math Algebra in Experimental Courses for Teachers Contradictions in the Common Core State Standards: Problems and a Possible Solution Coordinating abstract, physical, and computational aspects of algebra... Counting History and Theories of Mathematics Education Equity and Quality in Mathematics Education The “Ladder and Box” Problem Language of Algebra Mathematics Education Institute March 16-19, 2002 Negative numbers in school mathematics - MathFest 2011 Partnership Mathematics Context Courses for Prospective... Partnership Mathematics Context Courses for Prospective... [en Español] PME-29, July 10-15, 2005, Melbourne, Australia Proofs The Language of Algebra University students' opinions about the mathematics they studied in grades K-12 Main index of Author's Notes

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last modified : Febuary 2, 2022