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Public learning track
Addition and Subtraction Fact Strategies Within 20
1st Grade · Track 65 of 698 · 12 lessons
12 lessons
Goal
Master addition and subtraction facts within 10 and develop flexible mental strategies within 20.
Featured Diagrams
Adding Zero and the Identity Property Within 10
Public learning track
Collecting, Sorting, and Organizing Data
1st Grade · Track 66 of 698 · 8 lessons
8 lessons
Goal
Sort and classify objects and information into up to three categories using lists, tally marks, and T-charts.
Featured Diagrams
Collecting and Sorting Data Into Categories
Public learning track
Comparing and Ordering Length, Height, and Distance
1st Grade · Track 67 of 698 · 8 lessons
8 lessons
Goal
Learners will compare and order objects directly and indirectly by length, height, width, and distance using reference objects and precise comparative vocabulary.
Featured Diagrams
Directly Comparing Length Side by Side
Public learning track
Mathematical Problem Solving and Strategic Reasoning
1st Grade · Track 68 of 698 · 8 lessons
8 lessons
Goal
Master a structured multi-step problem-solving process to analyze word problems, choose representations and tools, calculate solutions, verify reasonableness, and communicate mathematical arguments clearly.
Featured Diagrams
Problem-Solving Model: Analyze, Plan, Solve, Justify
Public learning track
Halves, Fourths, and Quarters of Shapes and Sets
1st Grade · Track 69 of 698 · 9 lessons
9 lessons
Goal
Partition two-dimensional shapes and discrete sets into two and four equal shares, name them using fractional language, and describe the whole.
Featured Diagrams
Distinguishing Equal Parts From Unequal Parts
Public learning track
Place Value and Flexible Grouping to 120
1st Grade · Track 70 of 698 · 9 lessons
9 lessons
Goal
Understand tens and ones as place value units and compose and decompose two-digit and three-digit numbers up to 120 in standard and flexible ways.
Featured Diagrams
Bundling Ten Ones into One Ten
Public learning track
Recognizing Coins, Bills, and Money Symbols
1st Grade · Track 71 of 698 · 10 lessons
10 lessons
Goal
Identify circulating coins and bills, state their values, write amounts using dollar and cent notation, and skip count single denominations.
Featured Diagrams
Identifying Pennies, Nickels, Dimes, and Quarters
Public learning track
Subitizing, Ten-Frames, and Conservation of Quantity
1st Grade · Track 72 of 698 · 8 lessons
8 lessons
Goal
Instantly recognize structured quantities up to 20 without one-to-one counting and explain how quantity remains unchanged under spatial transformations.
Featured Diagrams
Recognizing Quantities on Dice and Domino Patterns
Public learning track
Two-Dimensional Shapes and Defining Attributes
1st Grade · Track 73 of 698 · 8 lessons
8 lessons
Goal
Distinguish between defining and non-defining attributes while identifying, describing, and classifying various two-dimensional shapes.
Featured Diagrams
Defining Versus Non-Defining Attributes of Shapes
Public learning track
Comparing and Ordering Numbers Up to 120
1st Grade · Track 74 of 698 · 7 lessons
7 lessons
Goal
Compare and order two-digit and three-digit numbers up to 120 using place-value reasoning, comparative terms, and comparison symbols (>, <, =).
Featured Diagrams
Comparing Numbers Using the Tens Place