Includes 8 activities with teacher guides designed to be used regularly and repeatedly to support students in building number sense related to counting and cardinality and algebraic thinking. Concepts Counting and Cardinality Comparing Quantities Composing and Decomposing a Quantity Students Count items in sets and record the numbers to represent those quantities Compare sets using an understanding of quantity Recognize numbers in print and create sets of items to represent those numbers Compose a quantity from two smaller quantities (seeing the whole made from its parts) Decompose a quantity into two smaller quantities (seeing the parts inside the whole) Record numbers and addition equations to represent the part-part-whole relationship Each teacher-guide includes: Activity to help students build number sense (blackline masters of directions, student recording sheets, and mapping papers provided) Essential Understandings of the mathematical foci of the activity and aligned standards Questioning strategies, specific to essential understandings, to press for student thinking and reasoning about the mathematics
