Write an equation with two equal addends and the sum to represent your answer. ______ + _____ = _____ Is your answer and even number or an odd number? ___________ Constructing Task: Add it Up! Approximately 2 days In this task, students will use a growing understanding of odd and even numbers to form problems solving strategies for adding numbers. Students will begin to understand that adding two equal numbers will produce an even number, adding two odd numbers will produce an even number, however, adding an even number to an odd number will produce an odd number. STANDARDS FOR MATHEMATICAL CONTENT MCC2.OA.3.Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends. STANDARDS FOR MATHEMATICAL PRACTICE (SMP) Although all standards for mathematical practice should be applied regularly, this task lends itself to the standards below: Make sense of problems and persevere in solving them. 3. Construct viable arguments and critique the reasoning of others. Independently written problems are shared and explained with classmates. 4. Model with mathematics. Students represent numbers in a variety of ways. 6. Attend to precision. BACKGROUND KNOWLEDGE (Information quoted from Van de Walle, Karp, and Bay-Williams, Elementary and Middle School Mathematics: Teaching Developmentally, page 266-267)
Write an equation with two equal addends and the sum to represent your answer. ______ + _____ = _____ Is your answer and even number or an odd number? ___________ Constructing Task: Add it Up! Approximately 2 days In this task, students will use a growing understanding of odd and even numbers to form problems solving strategies for adding numbers. Students will begin to understand that adding two equal numbers will produce an even number, adding two odd numbers will produce an even number, however, adding an even number to an odd number will produce an odd number. STANDARDS FOR MATHEMATICAL CONTENT MCC2.OA.3.Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends. STANDARDS FOR MATHEMATICAL PRACTICE (SMP) Although all standards for mathematical practice should be applied regularly, this task lends itself to the standards below: Make sense of problems and persevere in solving them. 3. Construct viable arguments and critique the reasoning of others. Independently written problems are shared and explained with classmates. 4. Model with mathematics. Students represent numbers in a variety of ways. 6. Attend to precision. BACKGROUND KNOWLEDGE (Information quoted from Van de Walle, Karp, and Bay-Williams, Elementary and Middle School Mathematics: Teaching Developmentally, page 266-267)
CCGPS_Math_2_Unit6Framework.docx