Welcome to the BCPS Second Grade Math Information Page!
Second Grade Math Content
The Baltimore County Public Schools elementary mathematics program is designed so that each student has access to rigorous instruction and engages in the habits of mind of proficient mathematical thinkers.
In Grade 2, instructional time should focus on four critical areas: (1) extending understanding of base-ten notation; (2) building fluency with addition and subtraction; (3) using standard units of measure; and (4) describing and analyzing shapes.
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Proficient Mathematical Thinkers
- Make sense of problems and persevere in solving them.
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Reason abstractly and quantitatively.
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Construct viable arguments and critique the reasoning of others.
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Model with mathematics.
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Use appropriate tools strategically.
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Attend to precision.
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Look for and make use of structure.
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Look for and express regularity in repeated reasoning.
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(1) Students extend their understanding of the base-ten system. This includes ideas of counting in fives, tens, and multiples of hundreds, tens, and ones, as well as number relationships involving these units, including comparing. Students understand multi-digit numbers (up to 1000) written in base-ten notation, recognizing that the digits in each place represent amounts of thousands, hundreds, tens, or ones (e.g., 853 is 8 hundreds + 5 tens + 3 ones).
(2) Students use their understanding of addition to develop fluency with addition and subtraction within 100. They solve problems within 1000 by applying their understanding of models for addition and subtraction, and they develop, discuss, and use efficient, accurate, and generalizable methods to compute sums and differences of whole numbers in base-ten notation, using their understanding of place value and the properties of operations. They select and accurately apply methods that are appropriate for the context and the numbers involved to mentally calculate sums and differences for numbers with only tens or only hundreds.
(3) Students recognize the need for standard units of measure (centimeter and inch) and they use rulers and other measurement tools with the understanding that linear measure involves an iteration of units. They recognize that the smaller the unit, the more iterations they need to cover a given length.
(4) Students describe and analyze shapes by examining their sides and angles. Students investigate, describe, and reason about decomposing and combining shapes to make other shapes. Through building, drawing, and analyzing two- and three-dimensional shapes, students develop a foundation for understanding area, volume, congruence, similarity, and symmetry in later grades.
Second Grade Math Curriculum
In second grade, students focus on addition and subtraction, place value, shapes, and length measurement. Throughout the year they:
Become fluent with addition and subtraction facts with numbers to 20
Add and subtract with numbers up to 1,000
Measure length and solve problems involving lengths
Identify, describe, compare, put together, and take apart shapes
Bridges uses visual models to make the mathematics accessible to all learners. One way that children approach math is through pictures. For example, your child might look at the picture below and answer questions like, “What did you notice about this picture? Where do you see the numbers in the picture? How can you use the picture to help solve the problem?”
When you talk with your child about their math work, it might sometimes seem unfamiliar or different than you remember. But there are still many ways you can help them explore math! By being open to learning and talking with your child, you can help your child develop strong skills and a love of math.
Second Grade Math Family Support Resources