enVision Mathematics Topic 2
2nd Grade; September (2 weeks); 1st Trimester
Embedded Files
Topic Title(s):
Work with Equal Groups
Prepared Graduates:
MP2. Reason abstractly and quantitatively.
MP3. Construct viable arguments and critique the reasoning of others.
Standard(s):
2. Algebra and Functions
The highlighted evidence outcomes are the priority for all students, serving as the essential concepts and skills. It is recommended that the remaining evidence outcomes listed be addressed as time allows, representing the full breadth of the curriculum.
Students Can (Evidence Outcomes):
2.OA.C. Operations & Algebraic Thinking: Work with equal groups of objects to gain foundations for multiplication.
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. (CCSS: 2.OA.C.3)
Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends. (CCSS: 2.OA.C.4)
Explore the arrangement of objects and how some arrangements afford mathematical power to solve problems. (Entrepreneurial Skills: Creativity/Innovation)
Reason about what it means for numbers to be even and odd. (MP2)
Explain why a group of objects is even or odd and if a strategy for deciding works with any group of objects. (MP3)
Inquiry Questions
What does it mean for a number to be even?
Do two equal addends always result in an even sum? Why or why not?
Coherence Connections
This expectation supports the major work of the grade.
In Grade 1, students work with addition and subtraction equations.
In Grade 2, this expectation connects with understanding place value for three-digit numbers.
In Grade 3, students solve problems involving the four operations and identify and explain patterns in arithmetic.
Academic Vocabulary & Language Expectations:
Even, odd, array, rows, columns
Assessments:
Instructional Resources & Notes:
enVision Mathematics Topic 2
Additional enVision Mathematics Resources
Let's Investigate! Forming Teams (TE) (supports Lessons 2-3, 2-4)
Additional Math Games: Arrays & Equations (additional materials and preparation may be required)
Tier 1 Intervention & Supports (i-Ready Tools for Instruction):
Tier 1 Intervention: None since this Unit Plan supports the major work of the grade
Page updated
Report abuse