South DakotaSouth Dakota 1st Grade Math Curriculum
Video lessons and practice for every 1st grade math topic. Aligned to South Dakota Math Standards so your child keeps up with what school is teaching.
South Dakota 1st Grade Math Curriculum | StudyPugHelp
ID | Standard | StudyPug Topic |
|---|---|---|
1.OA.A.1 | Use addition and subtraction within 20 to solve word problems |
1.OA.A.2 | Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20 |
1.OA.B.3 | Apply properties of operations as strategies to add and subtract |
1.OA.B.4 | Understand subtraction as an unknown-addend problem |
1.OA.C.6 | Add and subtract within 20, demonstrating fluency for addition and subtraction within 10 |
1.OA.D.7 | Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false |
1.OA.D.8 | Determine the unknown whole number in an addition or subtraction equation relating three whole numbers |
1.NBT.A.1 | Count to 120, starting at any number less than 120 |
1.NBT.B.2 | Understand that the two digits of a two-digit number represent amounts of tens and ones |
1.NBT.B.3 | Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and < |
1.NBT.C.4 | Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10 |
1.NBT.C.5 | Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count |
1.NBT.C.6 | Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 |
1.G.A.3 | Partition circles and rectangles into two and four equal shares |
South Dakota 1st Grade Math Topics
South Dakota 1st grade math covers a wide range of foundational skills. Students learn to use addition and subtraction within 20 to solve word problems, including problems involving three whole numbers. They explore the properties of operations and deepen their understanding of what the equal sign means.
Place Value and Number Sense
A major focus in 1st grade is understanding place value. South Dakota students learn that the two digits of a two-digit number represent tens and ones. They count to 120, compare two-digit numbers using the symbols >, =, and <, and practice adding within 100.
Measurement and Data
1st graders in South Dakota begin measuring lengths and telling time. They learn to:
- Order three objects by length
- Express length as a whole number of length units
- Tell and write time in hours and half-hours using analog and digital clocks
- Organize and interpret data with up to three categories
Geometry
Students distinguish between defining and non-defining attributes of shapes, compose two-dimensional and three-dimensional shapes, and partition circles and rectangles into two and four equal shares.
How StudyPug Helps South Dakota 1st Graders
StudyPug provides video lessons and practice problems for every one of these topics. Each lesson is short, clear, and focused on a single skill — perfect for homework help or getting ahead. All content is aligned to South Dakota Math Standards so it matches what your child's teacher is covering in class.