Teacher Lesson Grade Mathematics Language Karen Aborne is a Kindergarten teacher from Avondale Elementary School in Avondale, AZ This lesson demonstrates the use of dominoes to develop number sense and familiarity of geometric shapes. The topic of the lesson is  "Domino Shapes and Number" Kindergarten Geometry, One-to-One Correspondences, Matching Numbers Spanish Judy Boch is a Collaborative Peer Teacher in the Cartwright School District in Phoenix, AZ This lesson demonstrates the use of geoboards, drawings, and graphs to design a flying object. The topic of the lesson is  "Geoboard Properties" First Grade Geometry, Spatial Sense English Judy Boch is a Collaborative Peer Teacher in the Cartwright School District in Phoenix, AZ This lesson illustrates a literature-based thematic link to problem solving with multiple solutions. The topic of the lesson is  "Dinosaur Problem Solving" First Grade Number, Problem Solving, Multiple Solutions English Linda Levitt Ahern is a teacher at Squaw Peak Elementary School in the Creighton School District in Phoenix, AZ This lesson illustrates how geometry is the basis for the formation of natural objects. Nature slides are used to identify lines of symmetry. The topic of the lesson is  "Symmetry" Grades 1-2 Geometry, Symmetry English Cheryl Thomas is a Multigrade teacher from Isaac Imes Elementary School in the Cartwright School District in Phoenix, AZ This lesson demonstrates authentic contextualization of a money problem. The topic of the lesson is  "Calculating a Profit" Grades 1-3 Money Calculations English Karen Rose is a Collaborative Peer Teacher at Peralta School in the Cartwright School District in Phoenix, AZ This lesson demonstrates the use of darwings and symbols to represent a problem. The topic of the lesson is  "Problem Representation" Grades 1-3 Addition, Problem Solving English Janice Shanks is a Multigrade teacher from Isaac Imes Elementary School in the Cartwright School District in Phoenix, AZ This lesson demonstrates the use of manipulatives to build the number six. The topic of the lesson is  "Building Six" Grades 1-3 Addition English Cheryl Thomas is a Multigrade teacher from Isaac Imes Elementary School in the Cartwright School District in Phoenix, AZ This lesson provides an authentic context for cooperative problem solving comparing pay rates. The topic of the lesson is  "Patterns from Doubling" Grades 1-3 Number Doubling, Exponential Growth, Multiplication and Addition of Large Numbers English Cheryl Thomas is a Multigrade teacher from Isaac Imes Elementary School in the Cartwright School District in Phoenix, AZ This lesson demonstrates mathematical models for multiplication and strategies for problem solving. The topic of the lesson is  "Solving an Array Problem" Grades 1-3 Number Problem Solving English Janice Shanks is a Multigrade teacher from Isaac Imes Elementary School in the Cartwright School District in Phoenix, AZ This lesson focuses on solving a large area problem by using small pieces of information. The topic of the lesson is  "Area of Sleeping Bags" Grades 1-3 Large Area Problem English Yvonne Burch is a Second Grade teacher from Glassell Park in Los Angeles, CA This lesson demonstrates how a narrative can provide context in mathematics and can be an introduction to rational numbers. The topic of the lesson is  "Sharing Cookies" Second Grade Division, Introduction to Rational Numbers Spanish Nora Castañeda is a third grade teacher from William T. Machan Elementary School in Phoenix, AZ This lesson demonstrates converting recipe measurements to serve a large group. The topic of the lesson is  "Adding Money" Third Grade Money Addition Bilingual Nora Castañeda is a third grade teacher from William T. Machan Elementary School in Phoenix, AZ This lesson demonstrates converting recipe measurements to serve a large group. The topic of the lesson is  "Recipe Multiplication" Third Grade Multiplication, Equivalents, Measurent Bilingual Charles Addcox is a 3rd grade teacher from Roscoe Elementary School in Los Angeles, CA This lesson demonstrates the use of tangrams to develop geometric concepts and provides many Bilingual/ESL strategies. The topic of the lesson is  "Exploring Geometric Shapes" Third Grade Geometry, Properties of Shapes, Tangrams English Nora Castañeda is a third grade teacher from William T. Machan Elementary School in Phoenix, AZ This lesson introduces students to the commutative property and demonstrates several ESL/bilingual strategies. The topic of the lesson is  "Commutative Property" Third Grade Multiplication Bilingual Charles Addcox is a 3rd grade teacher from Roscoe Elementary School in Los Angeles, CA This lesson demonstrates three activities that can help to develop familiararity with the functions and use of a calculator. The topic of the lesson is  "Exploring with Calculators" Third Grade Calculator Functions, Mental Estimation, Rounding Nine Pattern Spanish Caroline Piangerelli is a teacher at Roscoe Elementary School in Los Angeles, CA This lesson demonstrates the use of tiles to design a "dream house," and graphing and dawing a floor plan. The topic of the lesson is  "Dream Houses with Tiles" Grades 3-4 Geometry, Measurement English Roberto Argote is a multigrade teacher from Haskell Elementary School in Los Angeles, CA This lesson demonstrates the use of a hundred chart to identify multiplication patterns and develop ideas about multiples, factors, and prime numbers. The topic of the lesson is  "Multiplication Patterns" Grades 3-5 Multiplication Patterns, Multiples, Factors, Prime Numbers Spanish Olga Torres is a Multigrade teacher from Mission View Elementary School in Tucson, AZ This lesson demonstrates several activities to help students to understand large numbers. The topic of the lesson is  "Place Value Games" Grades 3-5 Large Numbers Bilingual Olga Torres is a Multigrade teacher from Mission View Elementary School in Tucson, AZ This lesson demonstrates students' investigations and explorations with circumference and weight. The topic of the lesson is  "Patterns and Proportions" Grades 3-5 Measurement Bilingual Olga Torres is a Multigrade teacher from Mission View Elementary School in Tucson, AZ This lesson demonstrates the use of media, art, and literature to develop number sense. The topic of the lesson is  "Developing Number Sense" Grades 3-5 Number Sense Bilingual Roberto Argote is a multigrade teacher from Haskell Elementary School in Los Angeles, CA This lesson demonstrates the use of pattern blocks to measure perimeter. The topic of the lesson is  "Perimeter Search" Grades 3-5 Geometry Spanish Dan Dillon is a Collaborative Peer Teacher at Peralta School in the Cartwright School District in Phoenix, AZ This lesson demonstrates the use of color tiles to determine the area and perimeter of tile arrangements. The topic of the lesson is  "Area and Perimeter" Fourth Grade Geometry, Measurement English Vivian Cordoba teaches grades 4-5 at Haskell Magnet school in Los Angeles, CA This lesson helps students to develop an understanding of the properties of shapes. The topic of the lesson is  "Geometric Pattern Block" Grades 4-5 Geometry English Vivian Cordoba teaches grades 4-5 at Haskell Magnet school in Los Angeles, CA This lesson helps students to develop an understanding of multiples with large numbers. The topic of the lesson is  "Multiples with Calculators" Grades 4-5 Multiples with Large Numbers English Jenette Lawless is a fifth grade teacher at Barcelona Middle School, in the Alhambra District, Glendale, Arizona. This lesson demonstrates the introduction of symbolic notation to represent an unknown quantity in mathematical expressions. The topic of the lesson is  "The Lucky Thirteen Problem" 5th Grade Algebra Represent & analyze variables using manipulatives English Betz Frederick teaches pre-service teachers at Grand Canyon University, and also teaches fifth grade one day a week at Barcelona Middle School, in the Alhambra District, Glendale, Arizona This lesson demonstrates the introduction of symbolic notation to represent an unknown quantity in mathematical expressions. The topic of the lesson is  "The Lucky Thirteen Problem" 5th Grade Algebra Represent & analyze variables using manipulatives English Troy Regis is a sixth grade teacher at Madison Park School, in Madison School District #1, Phoenix, Arizona. This lesson demonstrates factors, multiples, prime numbers, and divisibility, affording opportunities for problem solving and reasoning. The topic of the lesson is  "The Factor Game" 6th Grade Number Theory Factors, Prime Numbers, Problem Solving English Andrea Geith teaches seventh math grade at Desert Sky Middle School, in the Deer Valley Unified School District, Glendale, Arizona. This lesson demonstrates introducing students to solving expressions with multiple variables. The topic of the lesson is  "Variables & Expressions" 7th Grade Solving expressions with multiple variables English Alan Kunz is a seventh grade math teacher at Madison Park School, in Madison School District #1, Phoenix, Arizona. This lesson demonstrates  "Dependent & Independent Variables" 7th Grade Algebra Understand patterns, relations, and functions English Terri Leon teaches seventh grade math at Desert Mirage Elementary School, in the Pendergast School District, Glendale, Arizona. This lesson demonstrates using manipulatives to count and identify X and X squared. The topic of the lesson is  "Variables with Manipulatives [part one]" 7th Grade Algebra Represent & analyze variables using manipulatives English Terri Leon teaches seventh grade math at Desert Mirage Elementary School, in the Pendergast School District, Glendale, Arizona. This lesson demonstrates using manipulatives to count and identify X and X squared. The topic of the lesson is  "Variables with Manipulatives [part two]" 7th Grade Algebra Represent & analyze variables using manipulatives English Roger Healy is a seventh and eighth grade mathematics teacher from Mesa Arts Academy in Mesa, Arizona. This lesson demonstrates the use of graphing calculators and motion sensors to create six non-linear graphs. The topic of the lesson is  "Bending the Lines" Grade 7-8 Algebra Representing Non-linear Functions using Graphing Calculators with CBR English Roger Healy is a seventh and eighth grade mathematics teacher from Mesa Arts Academy in Mesa, Arizona. This lesson demonstrates the use of graphing calculators and motion sensors to create linear graphs. The topic of the lesson is  "Group Walk" Grade 7-8 Algebra Representing Functions using Graphing Calculators with CBR English Ruth Ann Ditto teaches eighth grade math at Imes Magnet School, in the Glendale Elementary School District #40, Glendale, Arizona. This lesson demonstrates  "Image Processing & Statistics" 8th Grade English Jim Wittevrongel is a seventh and eighth grade mathematics teacher from Madison #1 school in Phoenix, Arizona. This lesson demonstrates the use of graphing calculators in teaching the connection between an equation and the shape of its graph. The topic of the lesson is  "A look at 2nd and 3rd Degree Equations" 8th Grade Algebra Tables & Equations Graphing Calculators English Joan Bogner is an eighth grade math teacher at Madison Meadows School, in Madison School District #1, Phoenix, Arizona. This lesson demonstrates the use of “The City of Euclid” to teach coordinate geometry.  "The City of Euclid" 8th Grade Geometry describe spatial relationships using coordinate geometry English Roger Van Der Ploeg is an eighth grade math teacher at Madison Park School, in Madison School District #1, Phoenix, Arizona. This lesson demonstrates collecting experimental data and evaluating that data to determine if it is linear or nonlinear. The topic of the lesson is  "Introduction to Non-linear Graphs" 8th Grade Algebra Understanding patterns and relationships English Ed Voska is an eighth grade math teacher at Madison Meadows School, in Madison School District #1, Phoenix, Arizona. This lesson demonstrates using similar triangles & scale factors to find the height of a wall  "Similar Triangles" 8th Grade Geometry Similar Triangles and Scale Factors English Sheila Jones is a secondary mathematics teacher at South Shore High School. This lesson demonstrates students how to develop algebraic concepts using graphing calculators. The topic of the lesson is  "Problem Solving with Graphing Calculators" 9th Grade Algebraic concepts using graphing calculators. English Nina Aloway is a secondary mathematics teacher at Paul Robeson High School. This lesson demonstrates the use of graphing technology to investigate the concepts of area and perimeter. The topic of the lesson is  "Investigating Area and Perimeter with Graphing Calculators" 9th Grade Students use graphing technology to investigate the concepts of area and perimeter. English Nina Aloway is a secondary mathematics teacher at Paul Robeson High School. This lesson demonstrates students the use of graphing technology to investigate geometric shapes. The topic of the lesson is  "Examining Geometric Concepts using Graphing Calculators" 10th Grade Using graphing technology to investigate geometric shapes English