enVision Mathematics Topic 14
2nd Grade; May (2 weeks); 3rd Trimester
Embedded Files
Topic Title(s):
More Addition, Subtraction, and Length
Prepared Graduates:
MP2. Reason abstractly and quantitatively.
MP4. Model with mathematics.
Standard(s):
3. Data, Statistics, and Probability
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.MD.B. Measurement & Data: Relate addition and subtraction to length.
Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem. (CCSS: 2.MD.B.5)
Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, …, and represent whole-number sums and differences within 100 on a number line diagram. (CCSS: 2.MD.B.6)
Recognize problems involving lengths and identify possible solutions. (Entrepreneurial Skills: Critical Thinking/Problem Solving)
Build on experiences with measurement tools to understand number lines as a more abstract tool for working with quantities. (MP2)
Use mathematical representations, like drawings and equations, to model scenarios described in word problems. (MP4)
Inquiry Questions
When might it be necessary to measure parts of objects and then combine those parts together?
How is a number line like a ruler?
Coherence Connections
This expectation represents major work of the grade.
In Grade 1, students add and subtract within 20 and express the length of an object as a whole number of length units.
In Grade 2, this expectation connects with measuring and estimating lengths in standard units and with representing and interpreting data.
In Grade 3, students develop an understanding of a fraction as a number on a number line.
Academic Vocabulary & Language Expectations:
Assessments:
Instructional Resources & Notes:
enVision Mathematics Topic 14
Additional enVision Mathematics Resources
Let's Investigate! Garden Fences (TE) (supports Lessons 14-1, 14-2)
Additional Math Games: Addition & Subtraction Within 100 (additional materials and preparation may be required)
Notes:
It is recommended to move Topic 14 to after Topic 15. Topic 15 (Graphs and Data) extends student understanding of data and statistics, which often gets omitted at the end of the year if pacing is an issue. Topic 14 (More Addition, Subtraction, and Length) reinforces addition and subtraction within 100 through measurement, supporting readiness for 3rd Grade.
Tier 1 Intervention & Supports (i-Ready Tools for Instruction):
Tier 1 Intervention: Solve Length Word Problems
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