Math Curriculum - Unit 2 222
UNIT 2 - Becoming Fluent with Addition and Subtraction
UNIT SUMMARY
In this unit, students will:
As students in second grade begin to count larger amounts, they should group concrete materials into tens and ones to keep track of what they have counted. This is the introduction of our place value system where students must learn that the digits (0-9) have different values depending on their position in a number.
Students in second grade now build on their work with one-step problems to solve two-step problems. Second graders need to model and solve problems and represent their solutions with equations. The problems should involve sums and differences less than or equal to 100 using the numbers 0 to 100. Picture Graphs and Bar Graphs are also introduced in second grade. Investigations and experiences with graphing should take place all year long.
Math Unit 2 Parent Letter
UNIT SUMMARY
In this unit, students will:
- cultivate an understanding of how addition and subtraction affect quantities and are related to each other
- will reinforce the multiple meanings for addition (combine, join, and count on) and subtraction (take away, remove, count back, and compare)
- further develop their understanding of the relationships between addition and subtraction
- recognize how the digits 0-9 are used in our place value system to create numbers and manipulate amounts
- continue to develop their understanding solving problems with money
As students in second grade begin to count larger amounts, they should group concrete materials into tens and ones to keep track of what they have counted. This is the introduction of our place value system where students must learn that the digits (0-9) have different values depending on their position in a number.
Students in second grade now build on their work with one-step problems to solve two-step problems. Second graders need to model and solve problems and represent their solutions with equations. The problems should involve sums and differences less than or equal to 100 using the numbers 0 to 100. Picture Graphs and Bar Graphs are also introduced in second grade. Investigations and experiences with graphing should take place all year long.
Math Unit 2 Parent Letter