• Course Description

    In this course, instructional time focuses on four critical areas: (1) developing understanding of addition, subtraction, and strategies for addition and subtraction within 20; (2) developing understanding of whole number relationships and place value, including grouping in tens and ones; (3) developing understanding of linear measurement and measuring lengths as iterating length units; and (4) reasoning about attributes of, and composing and decomposing geometric shapes.

    Grade Level(s): First Grade

    Related Priority Standards (State &/or National):  K-12 Mathematics Missouri Learning Standards

    Essential Questions

    • Does this problem make sense?
    • Does my approach make sense?
    • Does my model make sense?
    • Does my answer make sense?
    • Does my argument make sense?
    • Can I use my process/solution to solve another problem?

    Course-Level Scope & Sequence (Units &/or Skills)

    Module 1: Understanding Numbers 1 (Count and Add/Subtract within 10)

    • Understand and compare numbers by place value up to 100, using symbols <, >, =
    • Flexibly add and subtract numbers within 20 using a variety of strategies

    Module 2: 2-D Geometry

    • Classify and sort two-dimensional shapes using geometric language

    Module 3: Understanding Numbers 2 (Addition and Subtraction Strategies)

    • Flexibly add and subtract numbers within 20 using a variety of strategies
    • Fluently add/subtract to 10
    • Understand and apply properties of operations and the relationship between addition and subtraction
    • Show an understanding of place value

    Module 4: Measurement and Fractions

    • Measure and compare lengths of objects
    • Understand and apply properties of operations and the relationship between addition and subtraction

    Module 5: Understanding Numbers 3 (Addition and Subtraction to 20 - Fluency within 10)

    • Flexibly add and subtract numbers within 20 using a variety of strategies
    • Fluently add/subtract to 10
    • Understand and apply properties of operations and the relationship between addition and subtraction
    • Show an understanding of place value

    Module 6: Modeling with Data

    • Organize, represent, and draw conclusions from data, comparing up to three categories in graphs, t-charts, or tallies

    Module 7: Understanding Numbers 4 (Addition, Subtraction, and Place Value)

    • Understand and compare numbers by place value up to 100, using symbols <, >, =
    • Flexibly add and subtract numbers within 20 using a variety of strategies     
    • Understand and apply properties of operations and the relationship between addition and subtraction
    • Mentally add and subtract 10 more and 10 less to a two-digit number with high accuracy
    • Show an understanding of place value

    Module 8: 3-D Geometry

    • Classify and sort three-dimensional shapes using geometric language

    Course Resources & Materials: Investigations 3, Contexts for Learning Units, Exemplars

    Date Last Revised/Approved: 2018