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Public learning track
Mathematical Problem-Solving Frameworks
2nd Grade · Track 103 of 698 · 8 lessons
8 lessons
Goal
Apply a structured problem-solving cycle to analyze word problems, select tools and representations, check reasonableness, and justify mathematical solutions.
Featured Diagrams
Analyzing Given Information in Word Problems
Public learning track
Measuring Length with Customary and Metric Tools
2nd Grade · Track 104 of 698 · 8 lessons
8 lessons
Goal
Measure and estimate lengths, heights, and distances using standard customary and metric units and tools, and explain the relationship between unit size and unit count.
Featured Diagrams
Measuring Length with Informal Body Units
Public learning track
Mental Addition and Subtraction Fluency Within 20
2nd Grade · Track 105 of 698 · 7 lessons
7 lessons
Goal
Master mental math strategies and achieve automatic recall for all addition and subtraction facts within 20.
Featured Diagrams
Mastering Doubles Facts Within 20
Public learning track
Partitioning Wholes, Lengths, and Sets into Equal Parts
2nd Grade · Track 106 of 698 · 6 lessons
6 lessons
Goal
Partition 2D shapes, length strips, and sets of objects into 2, 3, 4, 5, 6, 8, and 10 equal parts.
Featured Diagrams
Partitioning a Whole Object into Equal Parts
Public learning track
Subitizing, Conceptual Grouping, and Quantity Estimation
2nd Grade · Track 107 of 698 · 6 lessons
6 lessons
Goal
Estimate and determine quantities of large collections using perceptual grouping, ten-structures, and benchmark anchors.
Featured Diagrams
Seeing Numbers Quickly in Dot Patterns
Public learning track
Two-Dimensional Shapes and Polygons
2nd Grade · Track 108 of 698 · 8 lessons
8 lessons
Goal
Identify, describe, compare, and draw polygons from triangles up to 12-sided shapes using sides, vertices, and angles.
Featured Diagrams
Identifying Polygons: Straight Sides and Closed Figures
Public learning track
Classifying Quadrilaterals and Angle Properties
2nd Grade · Track 109 of 698 · 6 lessons
6 lessons
Goal
Classify, compare, and sort quadrilaterals based on right angles, parallel sides, and equal side lengths.
Featured Diagrams
Identifying Parallel and Perpendicular Sides
Public learning track
Comparing Lengths, Perimeter, and Distance Problems
2nd Grade · Track 110 of 698 · 7 lessons
7 lessons
Goal
Compare lengths, draw line segments to specified measures, calculate perimeters of polygons, and solve length word problems within 100.
Featured Diagrams
Comparing and Ordering Lengths in Standard Units
Public learning track
Odd and Even Numbers: Pairing, Doubles, and Halves
2nd Grade · Track 111 of 698 · 5 lessons
5 lessons
Goal
Identify, analyze, and justify odd and even numbers up to 100 using pairings, equal sharing, and doubles.
Featured Diagrams
Identifying Even and Odd Numbers by Pairing
Public learning track
Ordinal Numbers, Relative Position, and Ranking to 100th
2nd Grade · Track 112 of 698 · 6 lessons
6 lessons
Goal
Identify, write, and apply ordinal numbers up to 100th to describe rank, sequential position, and relative order in structured situations.
Featured Diagrams
Reading and Writing Ordinal Numbers: 21st to 50th