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    Jan Gebert is an Illuminations lesson plan reviewer and instructor of professional and secondary education at East Stroudsburg University. So she definitely knows a thing or two about quality lessons. Illuminations asked her for her favorite out of our 600+ lessons.
    Success Story

    Deeanna Golden, a teacher of 24 years at F.M. Golson Elementary School in Marianna, Florida, is a beloved Illuminations lesson plan writer. So we asked her, "Why do you think it is important to share resources?"

    Success Story
    Diana Flores, who has a self-contained classroom, teaches highly and profoundly gifted students in Phoenix, AZ. Flores says math "rotations" is a "big-kid way to say centers." One of these math stations hosts computers, which students use frequently to visit Calculation NationTM .
    Success Story

    In this unit, students use the area formula for a rectangle to discover the area formulas for triangles, parallelograms, and trapezoids. Students also consider irregular figures whose areas can be determined by estimation or decomposition.

    Prerequisite Knowledge

    • Students need to have a conceptual understanding of area, as well as some familiarity with the area formula for rectangles.
    • Students need to have a conceptual understanding of area, as well as some familiarity with the area formula for rectangles.
     
    Lesson Plan

    In this unit, students will use geoboards to visualize the geometric meanings of square and square root.

    Math Content

    Students will:

    • Connect the square of a number to the area of a square whose side length is given.
    • Understand that the square root of a number can be represented as the side length of a square whose area is given.
    • be introduced to irrational numbers as the side lengths of non-traditional squares. Make connections between geometry, measurement and number sense through the use of manipulatives.

     

    Lesson Plan

    Each geometric investigation in this unit begins with an open-ended question that engages students in a study of triangles and their properties. This lesson was adapted from "IDEAS" by Marea W. Channel, which appeared in the November, 1993 Arithmetic Teacher (Teaching Children Mathematics), Vol. 41, No. 3.

     

    Lesson Plan
    Terry Johanson, learning support facilitator for Prairie Spirit School Division, and Kirsten Dyck, physics teacher at Saskatchewan High School, worked together to team plan and teach an Illuminations lesson.
    Success Story
    Wendy Cleaves is a Mathematics Coordinator at the Regional Science Resource Center at UMass Medical School in Shrewsbury, MA. At the center, Cleaves supports pre-K-12 STEM educators by providing a professional development institute entitled, "Increasing Accessibility to Algebra & Geometry for ALL Students."
    Success Story
    Chelsea Cutting from Mount Gambier, South Australia, tells us about the real-world connections her students are able to make after using Illumination resources.
    Success Story
    Teachers are not the only ones who encourage students to play Calculation Nation--parents do too! Dana Slevin, and her middle school daughters play Calculation Nation at home.
    Success Story
    Matthew Jaques, ninth and tenth grade teacher for Cathedral High School in Springfield, Massachusetts, discovered Illuminations by way of Bright Ideas and has been using, modifying and creating his own lessons ever since.
    Success Story
    The concepts of greater than, less than, and equal to are explored in this 2-lesson unit. Students create piles of food on two islands, and their fish always swims toward the island with more food. The fish's mouth is open to represent the greater than and less than symbols. Students transition from the concrete representation of using piles of food and the fish to writing inequalities with numerals and symbols.
    Lesson Plan

    These investigations use movement to reinforce the concepts of linear functions and systems of equations. Multiple representations are used throughout, along with tools such as motion detectors and remote-controlled cars. Students explore how position, speed, and varying motion are reflected in graphs, tables, and algebraic equations.

     

    Lesson Plan

    In this interactive geometry investigation, students explore polyhedra using different representations and perspectives for three dimensional block figures. In addition, students will examine area and volume concepts for block figures within this context.

    Math Content

    Students will:
    • Analyze characteristics and properties of three dimensional geometric shapes and develop mathematical arguments about geometric relationships.
    • Use visualization, spatial reasoning, and geometric modeling to solve problems.
    • Create three dimensional shapes using the isometric drawing tool and represent these shapes as isometric drawings.
    • Find the surface area and volume of various polyhedra created in this unit.

    If possible, each student should have access to an individual computer.

    Lesson Plan
    Anthony incorporates Illuminations lessons into her curriculum, but she also expands, tweaks and creates new materials to ensure these lessons are meeting the needs of her students.
    Success Story
    Divide numbers into two factors, and build arrays to represent each factorization.
    Web Interactive
    Grades: 3rd to 5th, 6th to 8th
    Measurement & Data
    Num & Ops Base Ten
    Algebraic Thinking
    Geometric measurement: understand concepts of area and relate area to multiplication and to addition.
    Use place value understanding and properties of operations to perform multi-digit arithmetic.
    Gain familiarity with factors and multiples.
    4.OA.B.4, 4.NBT.B.5, 3.MD.C.7b

    These activities guide students through a rich exploration of percent concentration using both tactile experiences and real-world applications. Students predict, model, and generalize their conjectures about percent concentrations.

    Math Content

    Students will:
    • Explore, estimate and apply percent concentrations.
    • Generalize a formula from specific experiences.
     
    Lesson Plan

    Count and subitize by playing a game.

    This activity is available for your phone in the Android Market or Apple App Store.  

    Web Interactive
    Grades: Pre K to 2nd
    Measurement & Data
    Counting & Cardinality
    Relate addition and subtraction to length.
    Count to tell the number of objects.
    Know number names and the count sequence.
    K.CC.A.2, K.CC.B.4a, K.CC.B.4b, K.CC.B.4c, K.CC.B.5, 2.MD.B.6
    Imagine having your whole year planned out before stepping foot in your classroom. Cindy Stofferahn, third grade teacher at Sturgis Elementary School in South Dakota, already knows what she is teaching today, tomorrow and for the rest of the year.
    Success Story
    Exercise your factoring ability against a human or the computer. Also available on Calculation Nation™ as Factor Dazzle.
    Web Interactive
    Grades: 6th to 8th, 3rd to 5th
    The Number System
    Algebraic Thinking
    Compute fluently with multi-digit numbers and find common factors and multiples.
    Gain familiarity with factors and multiples.
    4.OA.B.4, 6.NS.B.4
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