## Arithmetic Lesson Plans

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### Lesson Plans: Arithmetic

This list contains some of the best sites for individual arithmetic lesson plans or materials on which to base them. For a more exhaustive list, or to find materials that fit your specific needs, search or browse Arithmetic/Early Math or Lesson Plans in the Forum's Internet Mathematics Library.

Adventures in Statistics - Scavo, Petraroja
A Web unit preprint of a paper by teachers Tom Scavo and Byron Petraroja that describes a mathematics project involving fifth grade students and the ... more>>
Algebra - Fun with Calendars - Cynthia Lanius
Take any calendar. Tell a friend to choose 4 days that form a square. If your friend tells you only the sum of the four days, you can tell her what ... more>>
Bricks Activity - Suzanne Alejandre
A classroom activity (also called the Masonry Problem; a variation on polyominoes) aligned to the NCTM and California Standards, to be explored ... more>>
Classification of Patterns - Brown-Herbst, Donnelly, Stratton, Anderson-Nielsen; The Geometry Center
Materials about symmetry and classification of repeating patterns for students in grades 7-10 using wallpaper patterns, to be used as either an ... more>>
Does the Number e have Special Meaning? - Spencer, Chan; Univ. of Toronto Mathematics Network
Answers, explanations, and expositions of the question, Does the number e have any real physical meaning, or is it just a mathematical convenience? ... more>>
Dominoes Activity - Suzanne Alejandre
A classroom activity (similar to Pentomino + 1 = Hexomino; a variation on polyominoes) aligned to the NCTM and California Standards, to be explored ... more>>
EggMath - Bradlow, Sullivan, Levy, UIUC
A collection of modules (including many interactive applets) for K12 classrooms, based on the theme of eggs. Topics include: the shape of an egg ... more>>
Fractals: Definition & Activities - Suzanne Alejandre
A Math Forum Web Unit. Includes definitions and descriptions of fractals, links to pages on the Sierpinski triangle, the Koch edge, the Peano curve, ... more>>
Geometric Factoring - Suzanne Alejandre
A Math Forum Web Unit. Understanding factoring through geometry: students work cooperatively to display a numeral as the area of a rectangle, and make ... more>>
The Golden Ratio - Blacker, Polanski, Schwach; The Geometry Center
Introduction to the Golden Ratio and Fibonacci Sequence. Instead of simply supplying definitions and asking the student to engage in mindless ... more>>
The Hand Squeeze: A Data Collection and Analysis Class Experiment - Cynthia Lanius
An experiment: measuring the amount of time that it takes for a hand squeeze to pass around a circle. Record, graph, and analyze the data, and make ... more>>
Hotel Infinity (MegaMath) - Nancy Casey; Los Alamos National Laboratory
Will a hotel with an infinite number of rooms always have a vacancy? Students develop number sense, use numbers and number relationships in ... more>>
Introduction to Fractions for Primary Students - Varnelle Moore
A Web unit designed to introduce young children (K-2) to beginning concepts in fractions: equal parts, divide and shade, parts to whole, and writing ... more>>
Introduction to Measurement for Primary Students - Varnelle Moore
A Web unit designed designed to engage young children in a series of activities where they measure and describe the attributes of integer bars: ... more>>
Locker Problem - Suzanne Alejandre
A classroom activity (also called 1000 Lockers) aligned to the NCTM and California Standards, to be explored through the use of manipulatives and a ... more>>
Machines That Eat Your Words (MegaMath) - Nancy Casey; Los Alamos National Laboratory
An introduction to the concept of finite state machines, and how they are used to design computer systems that will recognize patterns. A finite state ... more>>
Magic Squares: Math, History, Geography - Suzanne Alejandre
Designed primarily for middle school and older elementary school students, this Math Forum Web unit includes classroom activities for four different ... more>>
Mathematics of Cartography - Cynthia Lanius
A map is a set of points, lines, and areas all defined both by position with reference to a coordinate system and by non-spatial attributes. These ... more>>
The Million \$ Mission - Cynthia Lanius
You have your choice of two payment options on your new job: 1. One cent on the first day, two cents on the second day, and double your salary every ... more>>
No Matter What Shape Your Fractions Are In - Cynthia Lanius
Students explore geometric models of fractions and discover relations among them, reinforcing their knowledge of fractions by using online pattern ... more>>
Pascal's Triangle - Math Forum/USI
A Web unit designed to support workshops given by the Math Forum for the Urban Systemic Initiative (Philadelphia and San Diego). Read about the ... more>>
PlaneMath - InfoUse, in cooperation with NASA
Materials for elementary school students about math and aeronautics, designed to stimulate and motivate students with physical disabilities in grades ... more>>
Rectangle Pattern Challenges - Cynthia Lanius
Examine different stges of rectangle patterns, and describe what you must do to get from one to the next. Observe the designs looking for patterns. ... more>>
River Crossing (Math Exploration Quilt) - Rik Littlefield; Hanford School
You want to cross a river to reach a point exactly opposite where you are currently standing. Explore this problem step-by-step, encountering the ... more>>
Table-Top Earthquakes - John C. Lahr
A demonstration of seismology for middle-school teachers and students that can be used to augment lessons in earth science (faulting, elastic rebound, ... more>>
Traffic Jam Activity - Suzanne Alejandre
A classroom activity (also called Hop, Skip, Jump) aligned to the NCTM and California Standards, to be explored through large movement experience, ... more>>
The Twelve Days of Christmas and Pascal's Triangle - Judy Brown, DIMACS and The Math Forum
A lesson in which, using Pascal's triangle, students find the number of items given each day in the song, "The 12 Days of Christmas." ... more>>
The Twelve Days of Christmas - Judy Brown, DIMACS and The Math Forum
A lesson in which students find the number of items given each day in the song, "The 12 Days of Christmas." This project is designed to be used as a ... more>>
UBUYACAR - Maricopa Center for Learning and Instruction
An online problem-based learning manual for students that poses the question: "You are interested in purchasing a new vehicle. What should your annual ... more>>

For more, search or browse Arithmetic/Early Math or Lesson Plans in the Forum's Internet Mathematics Library.