United States · Common Core State Standards
2nd Grade Mathematics
This curriculum focuses on developing a deep understanding of base ten notation, fluency with addition and subtraction, and the ability to reason about geometric shapes. Students move beyond rote memorization to explore the relationships between numbers and the logic of spatial measurements.
The Power of Ten: Building Place Value and Fluency
Students explore the base ten system to understand how digits represent hundreds, tens, and ones. This unit emphasizes the relationship between place value and efficient mental strategies for addition and subtraction.
Investigating how numbers up to 1,000 are composed of bundles of hundreds, tens, and ones.
Developing flexible strategies for adding and subtracting within 20 and 100 using properties of operations.
Using place value logic to compare the magnitude of three-digit numbers.
Measuring the World: Length and Data
Students use standard units of measure to quantify the physical world and represent their findings through organized data displays.
Exploring why we use standard units like inches and centimeters and how to choose the right tool for the job.
Creating and interpreting picture graphs and bar graphs to solve problems based on collected data.
Developing a mental benchmark for units of measure to estimate lengths and find differences between objects.
Algebraic Thinking: Patterns and Equations
This unit introduces the foundations of algebra through even and odd numbers, equal groups, and solving word problems with unknown variables.
Investigating the properties of numbers that can be divided into two equal groups or pairs.
Using rectangular arrays with up to 5 rows and 5 columns to understand repeated addition.
Mastering one and two step word problems involving situations of adding to, taking from, and comparing.
Geometry and Fractions: Shapes and Parts
Students identify attributes of shapes and learn to partition circles and rectangles into equal shares, laying the groundwork for fractions.
Identifying and drawing shapes based on specific attributes such as angles and faces.
Dividing circles and rectangles into two, three, or four equal shares and using fractional language.
Partitioning a rectangle into rows and columns of same size squares to count the total.