Mathematics

Our mathematics curriculum uses Pearson Envision math textbook and is supplemented with various project-based activities where students are encouraged to collaborate and work through real-life problems. The overall focus of mathematics in second grade is to promote number sense and problem-solving skills to allow students to work through problems that require multiple steps.

Students work through the following concept areas: Operations and Algebraic Thinking, Number and Operations in Base 10, Measurement and Data, and Geometry.

Within each area, students make real-world connections through word problems. While we differentiate within these concept areas for each student’s individual needs and skill set, all necessary benchmark milestones are covered. Students will learn to:

Operations in Algebraic Thinking

• Use addition and subtraction within 1,000 to solve and two-step word problems.

• Fluently add and subtract within 20 using mental strategies.

• Determine whether a group of objects (up to 20) has an even or odd number of members. Use skip counting by 2 as a strategy.

• Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and 5 columns; write an equation to match the array.

• Interpret products of whole numbers; understand that 5 x 7 is 5 groups of 7 objects.

Number and Operations in Base 10

• Understand that the three digits of a three-digit number represent hundreds, tens, and ones.

• Count within 1000; skip count by 5s, 10s, and 100s.

• Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

• Compare numbers using <,>, and =.

• Fluently add and subtract within 1,000 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

• Mentally add 10 or 100 more to a given number within 1,000.

• Understand a fraction as the quantity formed by 1 part when a whole is partitioned into equal parts.

Measurement and Data

• Measure the length of an object by selecting and using appropriate tools, such as rulers, yard/meter sticks, and measuring tape.

• Estimate lengths using units of inches, feet, centimeters, and meters.

• Measure to determine how much longer one object is than another.

• Tell and write time from analog and digital clocks to nearest 5 minutes, using a.m. and p.m.

• Solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and ¢.

• Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple one to two-step word problems and compare the information presented in the graph.

Geometry

• Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes.

• Partition a rectangle into rows and columns of the same size square and find the total.

• Partition circles and rectangles into two, three, or four equal shares, describe the shares using words halves, thirds, half of, a third of, etc. and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.

Examples of project-based activities include:

• Creating a Gold Rush Mining Camp Map demonstrating an understanding of geometric shapes, area, and perimeter. (Cross-curricular with Social Studies and Language Arts).

• Planning a Halloween party on a budget. Students must plan accordingly for the number of people that they plan to invite.