Students in second grade math focus on 4 critical areas: Extending understanding of base-ten notation, building fluency with addition and subtraction, using standard units of measure, and describing and analyzing shapes.

The major work of the course focuses on the following Common Core State Standards:

• 2.NBT.A.1  Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. 
• 2.NBT.A.2  Count within 1000; skip-count by 5s, 10s, and 100s.
• 2.OA.A.1  Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.
• 2.OA.B.2  Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers. 
• 2.NBT.B.5  Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
• 2.NBT.B.6  Add up to four two-digit numbers using strategies based on place value and properties of operations.
• 2.NBT.B.9  Explain why addition and subtraction strategies work, using place value and the properties of operations. Explanations may be supported by drawings or objects.
• 2.MD.B.5  Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem.
• 2.MD.D.10  Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems using information presented in a bar graph.

2.OA.B.2: Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.

2.NBT.B.5: Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

Learn how to develop students' procedural skill and fluency within Fishtank Math curriculum with our Procedural Skill and Fluency Teacher Tool.

In second grade, students extend their understanding of addition and subtraction situations by extending their work in problems within 100 and represent and solve situational problems of all types. As students work on one-step situations they are introduced to start unknown add to and take from situational problems as well as comparative problems where the language suggests the wrong operation. Additionally students are asked to extend their work with the various situational types by solving two-step problems. Their work with two-step situational problems does not include extensive work with the newer and more difficult subtypes. Learn how to develop students' word problem solving skills in the Fishtank Math curriculum with our Word Problem Teacher Tool.