IXL Math - Indiana first-grade math standards

IXL Math

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Indiana

Skills available for Indiana first-grade math standards

Indiana math standards: 2009 Indiana Academic Standards (Grades K-5)

Indiana math standards: 2000 Indiana Academic Standards (Grades K-6)

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 Sense

1.1.1 Count, read, and write whole numbers up to 100.
1.1.2 Count and group objects in ones and tens.
- Counting and number patterns: Counting tens and ones - up to 30 (First grade - A.3)
1.1.3 Identify the number of tens and ones in numbers less than 100.
- Place values: Place-value models - tens and ones (Second grade - M.1)
1.1.4 Name the number that is one more than or one less than any number up to 100.
- Counting and number patterns: Number lines (First grade - A.9)
- Counting and number patterns: Hundred chart (First grade - A.10)
1.1.5 Compare whole numbers up to 10 and arrange them in numerical order.
1.1.6 Match the number names (first, second, third, etc.) with an ordered set of up to 10 items.
- Counting and number patterns: Ordinal numbers (First grade - A.15)
1.1.7 Recognize when a shape is divided into congruent (matching) parts.
- Fractions: Equal parts (First grade - I.2)
1.1.8 For a shape divided into 8 or fewer congruent (matching) parts, describe a shaded portion as "__ out of __ parts" and write the fraction.
1.1.9 For a set of 8 or fewer objects, describe a subset as "__ out of __ parts" and write the fraction.
- Fractions: Simple fractions: parts of a group (First grade - I.4)
- Fractions: Fractions - word problems (First grade - I.5)
1.1.10 Represent, compare, and interpret data using pictures and picture graphs.

1.2 Computation

1.2.1 Show the meaning of addition (putting together, increasing) using objects.
- Addition: Addition with pictures - sums to 10 (First grade - B.1)
1.2.2 Show the meaning of subtraction (taking away, comparing, finding the difference) using objects.
- Subtraction: Subtraction with pictures - numbers up to 10 (First grade - D.1)
1.2.3 Show equivalent forms of the same number (up to 20) using objects, diagrams, and numbers.
1.2.4 Demonstrate mastery of the addition facts (for totals up to 20) and the corresponding subtraction facts.
1.2.5 Understand the meaning of the symbols +, -, and =.
- Mixed operations: Which sign makes the number sentence true? (First grade - F.2)
1.2.6 Understand the role of zero in addition and subtraction.
1.2.7 Understand and use the inverse relationship between addition and subtraction facts (such as 4 + 2 = 6, 6 - 2 = 4, etc.) to solve simple problems.
- Mixed operations: Addition and subtraction - ways to make a number (First grade - F.1)
- Mixed operations: Fact families (First grade - F.3)

1.3 Algebra and Functions

1.3.1 Write and solve number sentences from problem situations involving addition and subtraction.
1.3.2 Create word problems that match given number sentences involving addition and subtraction.
1.3.3 Recognize and use the relationship between addition and subtraction.
- Mixed operations: Fact families (First grade - F.3)
1.3.4 Create and extend number patterns using addition.

1.4 Geometry

1.4.1 Identify, describe, compare, sort, and draw triangles, rectangles, squares, and circles.
1.4.2 Identify triangles, rectangles, squares, and circles as the faces of three-dimensional objects.
- Geometry: Relate planar and solid figures (First grade - J.4)
1.4.3 Classify and sort familiar plane and solid objects by position, shape, size, roundness, and other attributes. Explain the rule you used.
1.4.4 Identify objects as two- or three-dimensional.
1.4.5 Give and follow directions for finding a place or object.
- Spatial sense: Location in a three-by-three grid (First grade - K.3)
1.4.6 Arrange and describe objects in space by position and direction: near, far, under, over, up, down, behind, in front of, next to, to the left or right of.
- Spatial sense: Left, middle, and right (First grade - K.1)
- Spatial sense: Above, below, top, middle, and bottom (First grade - K.2)
1.4.7 Identify geometric shapes and structures in the environment and specify their location.
- Geometry: Geometry of everyday objects (First grade - J.3)

1.5 Measurement

1.5.1 Measure the length of objects by repeating a non-standard unit or a standard unit.
1.5.2 Use different units to measure the length of the same object and predict whether the measure will be greater or smaller when a different unit is used.
1.5.3 Recognize the need for a fixed unit of length.
1.5.4 Measure and estimate the length of an object to the nearest inch and centimeter.
- Measurement: Which unit of length is appropriate? (First grade - M.2)
1.5.5 Compare and order objects according to area, capacity, weight, and temperature, using direct comparison or a non-standard unit.
1.5.6 Tell time to the nearest half-hour and relate time to events (before/after, shorter/longer).
1.5.7 Identify and give the values of pennies, nickels, and dimes.

1.6 Problem Solving

Students make decisions about how to set up a problem.
1.6.1 Choose the approach, materials, and strategies to use in solving problems.
- Addition: Word problems - adding three numbers (First grade - B.13)
1.6.2 Use tools such as objects or drawings to model problems.
Students solve problems and justify their reasoning.
1.6.3 Explain the reasoning used and justify the procedures selected in solving a problem.
1.6.4 Make precise calculations and check the validity of the results in the context of the problem.
- Addition: Word problems - sums to 18 (First grade - B.11)
- Subtraction: Word problems - numbers up to 18 (First grade - D.12)
1.6.5 Understand and use connections between two problems.