Grades
1st grade
Students learn to recognize numbers, add and subtract, and explore the properties of shapes and objects. Additionally, they develop skills in measuring time and identifying simple geometric shapes.
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- Identifying colorsStart
- Matching colorsStart
- Grouping colorsStart
- Comparing shapesStart
- Matching shapesStart
- Grouping shapesStart
- Finding matching shapesStart
- Matching identical shapesStart
- Grouping identical shapesStart
- Comparing objects: Big and smallStart
- Comparing objects: Tall and shortStart
- Comparing objects: Long and shortStart
- Comparing objects: Wide and narrowStart
- Position of objects: Right and leftStart
- Position of objects: Above and belowStart
- Identifying flat shapesStart
- Matching flat shapesStart
- Grouping flat shapesStart
- Identifying solid shapesStart
- Matching solid shapesStart
- Grouping solid shapesStart
- Days of the weekStart
- Months of the yearStart
- Seasons of the yearStart
- Groups of objectsStart
- Grouping objectsStart
- Comparing groups: More or lessStart
- Comparing groupsStart
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- Counting objectsStart
- Number 1 and its digitStart
- Number 2 and its digitStart
- Number 3 and its digitStart
- Number 4 and its digitStart
- Number 5 and its digitStart
- Filling 5-frame boxesStart
- Addition with numbers 1 to 5Start
- Subtraction with numbers 1 to 5Start
- Comparing numbers from 1 to 5Start
- Comparing numbers from 1 to 5: How many more?Start
- Comparing numbers from 1 to 5: How many fewer?Start
- Performing operations with numbers from 1 to 5Start
- Number 6 and its digitStart
- Number 7 and its digitStart
- Number 8 and its digitStart
- Number 9 and its digitStart
- Number 0 and its digitStart
- Number 10Start
- Comparing numbers from 1 to 10Start
- Comparing numbers from 1 to 10: How many more?Start
- Comparing numbers from 1 to 10: How many fewer?Start
- Filling 10-frame boxesStart
- Ordinal numbersStart
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- Addition using objectsStart
- Addition using picturesStart
- Choosing a model for additionStart
- Finding an addition expression from a modelStart
- Creating an addition expression from a modelStart
- Completing the addition table to 10Start
- Completing sums to 10Start
- Finding sums within 10Start
- Addition within 10Start
- Addition termsStart
- Finding the unknown addendStart
- The commutative property of additionStart
- Addition tableStart
- The comparison propertyStart
- ExpressionsStart
- Solving problems using picturesStart
- Solving problems using pictures: representing as a sumStart
- Solving addition problems within 10Start
- Solving problems: Representing as a sumStart
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- Subtraction using picturesStart
- Choosing a picture for subtractionStart
- Creating a subtraction expression from a modelStart
- Choosing subtraction using a number lineStart
- Subtracting by counting backwardStart
- Subtracting by counting forwardStart
- Terms of subtractionStart
- Relationship between addition and subtractionStart
- Finding the unknown minuendStart
- Finding the unknown subtrahendStart
- Solving problems using picturesStart
- Solving problems using pictures: representing as a differenceStart
- Solving subtraction problems within 10Start
- Solving problems: representing as a differenceStart
- CheckpointsStart
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- Counting within 20Start
- Writing numbers from 11 to 20 using tens modelsStart
- Writing numbers from 11 to 20 in tens formStart
- Numbers 11 and 12Start
- Numbers 13 and 14Start
- Numbers 15 and 16Start
- Numbers 17 and 18Start
- Numbers 19 and 20Start
- Comparing numbersStart
- Filling 20-frame boxesStart
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- Addition using a number lineStart
- Adding by counting forwardStart
- Adding 1Start
- Adding 2Start
- Adding 3Start
- Adding 4Start
- Adding 5Start
- Adding 6Start
- Adding 7Start
- Adding 8Start
- Adding 9Start
- Adding 0Start
- Adding in pairsStart
- Addition using a tens tableStart
- Making ten to addStart
- Adding three numbers by making tenStart
- Addition within 20Start
- Addition within 20: groupingStart
- Solving problems using diagramsStart
- Adding single-digit numbers with carrying: ProblemsStart
- Solving problems: representing as a sumStart
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- Relationship between addition and subtractionStart
- Choosing subtraction using a number lineStart
- Subtracting by counting backwardStart
- Subtracting by counting forwardStart
- Subtracting 1Start
- Subtracting 2Start
- Subtracting 3Start
- Subtracting 4Start
- Subtracting 5Start
- Subtracting 6Start
- Subtracting 7Start
- Subtracting 8Start
- Subtracting 9Start
- Subtracting 0Start
- Subtraction using a tens tableStart
- Subtraction within 20Start
- Subtraction within 20: groupingStart
- Solving problems using diagramsStart
- Solving subtraction problems within 20Start
- Solving problems: representing as a differenceStart
- Subtracting numbers by breaking apartStart
- Subtracting across tenStart
- CheckpointsStart
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- Counting two-digit numbersStart
- Counting forward with two-digit numbersStart
- Counting backward with two-digit numbersStart
- Counting two-digit numbers: number lineStart
- Two-digit number chartStart
- Numbers from 21 to 100: counting forward and backward by 1Start
- Numbers from 21 to 100Start
- Identifying round numbers using modelsStart
- Writing two-digit numbers using modelsStart
- Reading numbers from 21 to 100Start
- Writing numbers from 21 to 100Start
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- Adding one-digit numbers to round numbers using modelsStart
- Adding one-digit numbers to round numbersStart
- Adding two-digit numbers to round numbers using modelsStart
- Adding two-digit numbers to round numbersStart
- Adding a one-digit number to a two-digit number using modelsStart
- Adding a one-digit number to a two-digit numberStart
- Adding a one-digit number to a two-digit number by counting forwardStart
- Adding a one-digit number to a two-digit number using a 100-chartStart
- Adding a two-digit number to another two-digit number using modelsStart
- Adding two-digit numbers using place valuesStart
- Addition of Two-Digit Numbers: Word ProblemsStart
- Multi-Step AdditionStart
- Associative Property of AdditionStart
- CheckpointsStart
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- Subtracting a one-digit number from a two-digit number using modelsStart
- Subtracting a one-digit number from a two-digit numberStart
- Subtracting a round number from a two-digit numberStart
- Subtracting a two-digit number from another two-digit number using modelsStart
- Subtracting two-digit numbers using place valuesStart
- Subtracting two-digit numbersStart
- Subtracting two-digit numbers: problemsStart
- Relationship between addition and subtractionStart
- CheckpointsStart
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- Problem structureStart
- Algorithm for solving problemsStart
- Simple problemsStart
- Methods of presenting problem conditionsStart
- Solving problemsStart
- Problems on finding the wholeStart
- Problems on finding partsStart
- Problems on increasing a number: -moreStart
- Problems on increasing a number: How much more?Start
- Problems on decreasing a number: -lessStart
- Problems on decreasing a number: How much less?Start
- Comparison problems: How much bigger?Start
- Comparison problems: How much smaller?Start
- Solving complex problemsStart
- Filling in missing information in problem conditionsStart
- Non-standard problemsStart
- Solving two-step problemsStart
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- Length. Centimeter.Start
- Measuring line segmentsStart
- Centimeter. Decimeter.Start
- The relationship between decimeter and centimeterStart
- Length measurement: ProblemsStart
- Mass and units of massStart
- Volume and units of volumeStart
- Quantities: Length, mass, and volumeStart
- Quantities and their propertiesStart
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- Line segment and its lengthStart
- Drawing a line segment of given lengthStart
- Properties of a line segmentStart
- Length of a broken lineStart
- Open and closed broken linesStart
- Finding the number of sidesStart
- Names of shapesStart
- Flat shapes in everyday lifeStart
- Perimeter of a polygonStart
- Rectangle and squareStart
- Perimeter of a rectangleStart
- Perimeter of a squareStart
- AngleStart
- RectanglesStart
- Areas and boundariesStart
- Congruent shapesStart
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- Identifying equationsStart
- Constructing equationsStart
- Addition within 10: completing equationsStart
- Subtraction within 10: completing equationsStart
- Addition within 20: completing equationsStart
- Subtraction within 20: completing equationsStart
- Two-digit addition: completing equationsStart
- Two-digit subtraction: completing equationsStart
- Solving equationsStart
- Solving problems using equationsStart
- Calculating the Length of a Line SegmentStart
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