IXL Math - Oregon first-grade math standards

IXL Math

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Oregon

Skills available for Oregon first-grade math standards

Oregon math standards: 2007 Oregon Standards (Grades K-6)

Oregon math standards: 2002 Oregon Standards (Grades K-5)

Standards are in black and IXL math skills are in blue. Hold your mouse over the name of a skill to view a sample problem. Click on the name of a skill to practice that skill.

Printable version

1.1 Number and Operations

1.1.1 Compare and order whole numbers to 100.
1.1.2 Represent whole numbers on a number line, demonstrating an understanding of the sequential order of the counting numbers and their relative magnitudes.
- Counting and number patterns: Counting forward and backward (First grade - A.8)
- Counting and number patterns: Number lines (First grade - A.9)
1.1.3 Count and group objects in tens and ones.
- Counting and number patterns: Counting tens and ones - up to 30 (First grade - A.3)
- Counting and number patterns: Counting by twos, fives, and tens - up to 100 (First grade - A.7)
1.1.4 Identify the number of tens and ones in whole numbers between 10 and 100, especially recognizing the numbers 10 to 19 as 1 group of ten and a particular number of ones.
- Counting and number patterns: Hundred chart (First grade - A.10)
1.1.5 Determine the value of collections of pennies, nickels, and dimes.

1.2 Number and Operations and Algebra

1.2.1 Model "part-whole," "adding to," "taking away from," and "comparing" situations to develop an understanding of the meanings of addition and subtraction.
- Addition: Addition with pictures - sums to 10 (First grade - B.1)
- Subtraction: Subtraction with pictures - numbers up to 10 (First grade - D.1)
1.2.2 Develop and use efficient strategies for adding and subtracting whole numbers using a variety of models, including discrete objects, length-based models (e.g., lengths of connecting cubes) and number lines.
1.2.3 Apply with fluency sums to 10 and related subtraction facts.
1.2.4 Use the concept of commutative [4 + 2 = 2 + 4], associative [(4 + 3) + 7 = 4 + (3 + 7)], and identity [0 + 3 = 3] properties of addition to solve problems involving basic facts.
- Addition: Adding zero (First grade - B.7)
- Subtraction: Subtracting zero and all (First grade - D.8)
1.2.5 Relate addition and subtraction as inverse operations.
- Mixed operations: Fact families (First grade - F.3)
- Mixed operations: Addition and subtraction terms (First grade - F.5)
1.2.6 Identify, create, extend, and supply a missing element in number patterns involving addition or subtraction by a single-digit number.
- Counting and number patterns: Sequences - count up and down by 1, 2, 3, 5, and 10 (First grade - A.14)

1.3 Geometry

1.3.1 Describe geometric attributes of shapes (e.g., round, corners, sides) to determine how they are alike and different.
1.3.2 Recognize and create shapes that are congruent or have symmetry.
- Geometry: Symmetry (First grade - J.11)
- Geometry: Same shape (First grade - J.12)
1.3.3 Compose and decompose shapes (e.g., cut a square into two right triangles and put two cubes together to make a rectangular prism), thus building an understanding of part-whole relationships as well as the properties of the original and composite shapes.
- Geometry: Relate planar and solid figures (First grade - J.4)
1.3.4 Recognize shapes when viewed from different perspectives and orientations.