Georgia 1st Grade Math Standards

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NR Numerical Reasoning

• Counting, numbers, equality, place value, addition, subtraction
  • 1.NR.1 Extend the count sequence to 120. Read, write, and represent numerical values to 120 and compare numerical values to 100.
    • 1.NR.1.1 Count within 120, forward and backward, starting at any number. In this range, read and write numerals and represent a number of objects with a written numeral.
    • 1.NR.1.2 Explain that the two digits of a 2-digit number represent the amounts of tens and ones.
    • 1.NR.1.3 Compare and order whole numbers up to 100 using concrete models, drawings, and the symbols >, =, and <.
  • 1.NR.2 Explain the relationship between addition and subtraction and apply the properties of operations to solve real-life addition and subtraction problems within 20.
    • 1.NR.2.1 Use a variety of strategies to solve addition and subtraction problems within 20.
    • 1.NR.2.2 Use pictures, drawings, and equations to develop strategies for addition and subtraction within 20 by exploring strings of related problems.
    • 1.NR.2.3 Recognize the inverse relationship between subtraction and addition within 20 and use this inverse relationship to solve authentic problems.
    • 1.NR.2.4 Fluently add and subtract within 10 using a variety of strategies.
    • 1.NR.2.5 Use the meaning of the equal sign to determine whether equations involving addition and subtraction are true or false.
    • 1.NR.2.6 Determine the unknown whole number in an addition or subtraction equation relating to three whole numbers.
    • 1.NR.2.7 Apply properties of operations as strategies to solve addition and subtraction problem situations within 20.
• Base ten structure, addition and subtraction within 100
  • 1.NR.5 Use concrete models, the base ten structure, and properties of operations to add and subtract within 100.
    • 1.NR.5.1 Use a variety of strategies to solve applicable, mathematical addition and subtraction problems with one- and two-digit whole numbers.
    • 1.NR.5.2 Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
    • 1.NR.5.3 Add and subtract multiples of 10 within 100.

PAR Patterning & Algebraic Reasoning

• Repeating patterns, growing, patterns, and shrinking patterns
  • 1.PAR.3 Identify, describe, extend, and create repeating patterns, growing patterns, and shrinking patterns found in real-life situations.
    • 1.PAR.3.1 Investigate, create, and make predictions about repeating patterns with a core of up to 3 elements resulting from repeating an operation, as a series of shapes, or a number string.
    • 1.PAR.3.2 Identify, describe, and create growing, shrinking, and repeating patterns based on the repeated addition or subtraction of 1s, 2s, 5s, and 10s.

GSR Geometric & Spatial Reasoning

• Shapes, attributes, partitions of circles and rectangles
  • 1.GSR.4 Compose shapes, analyze the attributes of shapes, and relate their parts to the whole.
    • 1.GSR.4.1 Identify common two dimensional shapes and three dimensional figures, sort and classify them by their attributes and build and draw shapes that possess defining attributes.
    • 1.GSR.4.2 Compose two-dimensional shapes (rectangles, squares, triangles, half-circles, and quarter-circles) and three dimensional figures (cubes, rectangular prisms, cones, and cylinders) to create a shape formed of two or more common shapes and compose new shapes from the composite shape.
    • 1.GSR.4.3 Partition circles and rectangles into two and four equal shares.

MDR Measurement & Data Reasoning

• Length, time, money
  • 1.MDR.6 Use appropriate tools to measure, order, and compare intervals of length and time, as well as denominations of money to solve real-life, mathematical problems and answer relevant questions.
    • 1.MDR.6.1 Estimate, measure, and record lengths of objects using non-standard units, and compare and order up to three objects using the recorded measurements. Describe the objects compared.
    • 1.MDR.6.2 Tell and write time in hours and half-hours using analog and digital clocks, and measure elapsed time to the hour on the hour using a predetermined number line.
    • 1.MDR.6.3 Identify the value of quarters and compare the values of pennies, nickels, dimes, and quarters.
    • 1.MDR.6.4 Ask questions and answer them based on gathered information, observations, and appropriate graphical displays to compare and order whole numbers.