Teacher presentation materials. Unit: K.4 Understanding Addition and Subtraction (Kindergarten). K.4 Understanding Addition and Subtraction Unit Goals Students relate counting to addition and solve addition and subtraction story problems within 10. Section A Goals Understand addition as putting together and subtraction as taking from. Section B Goals Represent and solve Add To, Result Unknown and Take From, Result Unknown story problems within 10. Section C Goals Find the value of addition and subtraction expressions within 10. Relate addition and subtraction expressions to story problems. Read More Lessons Resources Assessments Practice Glossary Lessons Section A: Count to Add and Subtra