Kindergarten Number talks focus on developing number fluency with five and ten. In this video, Mrs. Vandiver uses Rekenreks to support her students’ thinking about number combinations.
First grade Number Talks should support students’ fluency with addition and subtraction within 10. Later in the year, as shown in this video, first graders should be extending strategies like “near doubles” and “make a ten” to addition and subtraction within 20.
Second grade Number Talks should allow students a space to experiment with addition and subtraction strategies within 100. These may include compensation, branching methods, near doubles, and other efficient mental math processes.
Third grade Number Talks should focus primarily on two areas: addition and subtraction within 1000 and multiplication and division within 100. Later in the year, as shown in this video, students can begin to apply previously mastered strategies to even larger ranges of numbers.
Fourth grade Number Talks should challenge students to think mentally with all four operations of whole numbers including addition, subtraction, multiplication, and division. With increasing difficulty, students should explore common errors, efficient methods for multi-digit computation, and estimating strategies.
Fifth grade Number Talks offer students a space to solidify whole number computational fluency. By the end of fifth grade, students should be comfortable with a wide range of flexible strategies for all four operations of whole numbers. This lays an important foundation for their work in middle school math.