Number Corner outlines a coherent progression of skills development across grades K-5.

## Kindergarten

### Overview

Kindergartners add a new marker to the Calendar Grid for each day of the month. Students delve into important mathematics as they identify patterns that emerge in the markers over time. Each month also features a collection of some kind—cubes, sticks, shapes, coins, or data—that serves as a springboard for representing and analyzing data, practicing counting and computation, and solving problems. Students keep track of the number of days they have been in school, which gives them the chance to explore teen numbers and then all numbers to 100 and beyond.

Many days also feature an activity or game for strengthening students’ counting skills and computational fluency. These games and activities often incorporate visual models like five-frames, ten-frames, finger patterns to 10, linking cubes, and the number line.

The activities and games in Number Corner Kindergarten give students ongoing practice with key skills and concepts, including:

• Counting
• Reading and writing numerals to 20
• Comparing sets and numbers
• Modeling and solving addition and subtraction problems
• Identifying, describing, and comparing shapes in the environment

### Content Outline

#### August / September

• Circle, Rectangle, Triangle, Square
• Collecting Cubes
• Quantities to Five
• Up to Ten & Back Again

#### October

• Dancing Leaves
• Collecting Cubes in Two Colors
• How Many More?
• Fun with Finger Patterns
• The Tricky Teens

#### November

• Flat & Solid Shapes
• Collecting Sticks
• Drawing to Make Ten
• Combinations of Five
• Numbers Before & After

#### December

• Where’s the Bear?
• Collecting Pattern Block Shapes
• Counting the Days Until Winter Break
• Numbers from Six to Ten
• The Twenties

#### January

• Teddy Bear's Buttons: Combinations to Five
• Collecting Cubes in Three Colors
• How Many to Ten?
• Combinations for Numbers from Two to Ten
• Hopping on the Number Line

#### February

• One Dot, Many Dots
• Ones & Fives with Pennies & Nickels
• One Hundred Days & Counting
• Representing Addition & Subtraction on the Farm
• Ten & More

#### March

• How Many More to Make Ten?
• How Many Lambs? How Many Lions?
• Counting by Ones & Tens on the Line
• Solving Addition & Subtraction Story Problems at the Zoo
• Reviewing Teens & Twenties

#### April

• Measuring Tools
• Frogs & Toads to Five
• Counting to One Hundred by Ones & Tens
• Sums & Minuends to Ten with Frogs & Toads
• The Thirties & Forties

#### May / June

• Number Puzzles
• Cats & Dogs to Ten
• Hopping by Tens on the Number Line
• Fives Up
• Fun with Fifty

### Overview

First graders add a new marker to the Calendar Grid for each day of the month. Students delve into important mathematics as they identify patterns that emerge in the markers over time. Each month also features a collection of some kind— cubes, sticks, shapes, coins—that serves as a springboard for representing and analyzing data, practicing computation, and solving problems. Students keep track of the number of days they have been in school using a hundreds grid, which encourages them to see groups of 1, 5, and 10 in different numbers.

Many days also feature an activity or game for strengthening students’ counting skills and computational fluency. These games and activities often incorporate visual models like ten-frames, double ten-frames, number lines, and hundreds grids

The activities and games in Number Corner Grade 1 give students ongoing practice with key skills and concepts, including:

• Reading, writing, and comparing numbers to 120
• Counting in groups of tens and ones
• Developing and using strategies to solve single- and double-digit addition and subtraction problems
• Telling time
• Measuring length in non-standard units
• Investigating shapes and fractions

### Content Outline

#### August / September

• Place Value Models
• Fives & Ones with Nickels & Pennies
• Finding Five

#### October

• Fall Number Stories & Equations
• Pattern Block Shapes
• Making Ten
• Make Ten Facts
• The Twenties & Thirties

#### November

• Chomp! Gulp! Nibble! Fractions
• An Hour a Day
• Finding Fifty
• Doubles & Halves to Ten
• The Forties & Fifties

#### December

• Three-Dimensional Shapes All Around Us
• Time to the Hour
• Moving Beyond Fifty
• Doubles & Halves Within Twenty
• The Fifties & Sixties

#### January

• Equations with Unknowns
• Tens & Ones with Dimes & Pennies
• Close to One Hundred
• Doubles Plus or Minus One Facts
• The Seventies & Eighties

#### February

• Geoboard Shapes
• Collecting Cubes
• One Hundred Days of School & More

#### March

• What Time Is It?
• Tens, Fives & Ones with Coins
• Looking Beyond One Hundred
• Think Ten
• Numbers to 120

#### April

• Folding Fractions
• Counting & Adding with Popsicle Sticks
• Expanded Notation
• Numbers to 120

#### May / June

• Hopping on the 120 Number Grid
• Fractions with Quarters
• Closing In on Two Hundred
• Adding & Subtracting on the 120 Grid
• Numbers Off the Decade by Tens

### Overview

Second graders add a new marker to the Calendar Grid for each day of the month. Students delve into important mathematics as they identify patterns that emerge in the markers over time. Each month also features a collection of data that students gather by taking measurements and conducting surveys. Students also build, sketch, and record arrays to match the day’s date as a way to explore addition and subtraction, as well as odd and even numbers.

Many days also feature an activity or game for strengthening students’ counting skills and computational fluency. These games and activities often incorporate visual models like ten-frames, double ten-frames, number lines, and number grids.

The activities and games in Number Corner Grade 2 give students ongoing practice with key skills and concepts, including:

• Reading, writing, and comparing numbers to 1,000
• Counting in groups of hundreds, tens, and ones
• Developing and using strategies to solve double- and triple-digit addition and subtraction problems
• Telling time
• Measuring length
• Counting money
• Investigating 2- and 3-D shapes
• Building rectangular arrays
• Identifying fractions

### Content Outline

#### August / September

• How Many to Twenty?
• Sixty Minutes a Day
• Odd & Even
• Zero, Count On & Count Back
• The Century Counts

#### October

• Multiples of Three & Four
• Five Minutes a Day
• The Day’s Arrays
• Make & Break Tens
• Guess My Number

#### November

• Telling Time to the
Quarter-Hour
• Measuring Length with Different Units
• Rows & Columns
• Doubles & Halves
• The Fifth Century

#### December

• Shapes & Attributes
• Student Surveys
• Rows & Columns Revisited
• Tens & Nines

#### January

• Survey Data & Graphs
• Exactly Half?
• Arrays on the Hundreds Grid
• Changing Endpoints

#### February

• Flag Fractions
• Capture the Clock
• The Base Ten Bank: Addition
• The Tenth Century

#### March

• Mystery Shapes
• Two Quarters a Day
• The Base Ten Bank: Subtraction
• Continuing with Addition Quick Facts
• Put It on the Line

#### April

• Garden Fractions
• Measuring & Plotting Plant Growth
• Writing Area Equations
• Efficient Jumps of Tens & Hundreds

#### May / June

• Where’s Joey on the Thousand Grid?
• Measuring & Plotting Student Heights
• Arrays to Thirty-One
• Quick Facts Finale
• Adding & Subtracting Tens & Hundreds

### Overview

Third graders add a new marker to the Calendar Grid for each day of the month. Students delve into important mathematics as they identify patterns that emerge in the markers over time. Each month also features a collection of some kind—coins, shapes, cubes, increments of time, experimental data—that students use as a context for gathering and analyzing data using tally marks, frequency tables, graphs, and other displays.

Many days also feature an activity or game for building computational fluency, an activity based on a number line or grid, or a problem string (a carefully arranged sequence of related problems designed to elicit specific computation strategies and insights about number relationships).

The activities and games in Number Corner Grade 3 give students ongoing practice with key skills and concepts, including:

• Fluently adding and subtracting within 1,000
• Developing fluency with multiplication and related division facts within 100
• Representing and solving problems involving multiplication
• Rounding to the nearest 10 or 100
• Understanding, representing, and comparing fractions
• Telling time Estimating and measuring mass and liquid volume
• Collecting and analyzing data
• Working with shapes and area

### Content Outline

#### August / September

• Multiplication Models
• Class Data
• Loops & Groups
• Up to One Thousand
• Adding Two- and Three-Digit Numbers

#### October

• Two-Dimensional Shapes
• Collecting Liters & Milliliters
• Frog Jump Multiplication
• Changing Endpoints
• Subtracting Two- & Three-Digit Numbers

#### November

• Multiplication Arrays
• Unit Fraction Race
• Array Race
• Rounding to the Nearest Ten
• One-Step Story Problems with Equations

#### December

• Unit Fraction Squares
• Collecting Grams
• Fact Fluency for Multiplying by Zero, One & Two
• Rounding to the Nearest Hundred
• Multiplying with the Distributive Property

#### January

• Equivalent Fractions
• Collecting Minutes & Hours
• Fact Fluency for Multiplying by Ten & Five
• Benchmark Fractions on a Number Line
• Multi-Step Problems & Equations

#### February

• Investigating Area & Perimeter
• Collecting Fractions of a Dollar
• Fact Fluency for Multiplying by Three, Four & Eight
• Comparing Fractions
• Data Problems

#### March

• Time & Data Displays
• Area & Perimeter of Rectilinear Figures
• Fact Fluency for Multiplying by Six & Nine
• Find the Fraction
• Area & Perimeter Puzzles

#### April

• More Equivalent Fractions
• Collecting Fractions of an Hour
• Quick Facts & Games
• Put It on the Line
• Multiplication & Division Practice

#### May

• Fractions & Area with Rectilinear Figures
• Roll & Multiply
• More Quick Facts & Games
• Put It on the Line with Fractions & Mixed Numbers
• More Multiplication & Division Practice

### Overview

Fourth graders add a new marker to the Calendar Grid for each day of the month. Students delve into important mathematics as they identify patterns that emerge in the markers over time. Each month also features a collection of data that students gather by taking repeated measurements, conducting surveys, and performing experiments. The patterns on the Calendar Grid and the growing collection of data provide starting points for discussions, problem solving, and short written exercises.

Every month, fourth graders have multiple opportunities to develop their problem-solving skills while tackling challenging story problems. Students also have regular opportunities to play games and do exercises, often related to an open number line, that develop their facility with single- and multi-digit computation, fractions, equations, place value, or order of operations. A few days each month, students solve a problem string (a carefully arranged sequence of related problems designed to elicit specific computation strategies and insights about number relationships).

The activities and games in Grade 4 Number Corner give students ongoing practice with key skills and concepts, including:

• Drawing, classifying, building, and analyzing two-dimensional shapes
• Classifying and constructing angles, lines, and line segments
• Constructing and interpreting line plots
• Solving multiplication and division problems using arrays, ratio tables, and equations
• Adding, subtracting, multiplying, and dividing fractions using number lines and other models

### Content Outline

#### August / September

• Ancient Egyptian Numerals
• Six Inches a Day
• The Number Line & Splat!
• Multiplication Models
• One-Step Multiplication Problems

#### October

• Fractions & Decimals
• Race to the Millions
• The Number Line & Put It on the Line, Part 1
• Ratio Tables
• Multi-Step Multiplication Problems

#### November

• Night & Day
• A Cup a Day
• The Number Line & Roll & Compare
• Place Value, Rounding & Comparing

#### December

• Pentominoes
• Up & Down to Two Thousand
• The Number Line & The Mystery Grid Game
• Multi-Digit Subtraction Strategies
• Lines & Symmetry

#### January

• Similar Figures
• Three Quarters a Day
• Division Capture
• Division Strategies
• Multi-Step Division Problems

#### February

• Constructing Angles & Polygons
• The Number Line & Put It on the Line, Part 2
• Adding & Subtracting Fractions with Like & Unlike Denominators
• Multi-Step Problems & Equations

#### March

• The Function Machine
• The Great Fraction Race
• Don't Break 3.00
• Generating Equivalent Fractions
• Multiplying Fractions & Whole Numbers Story Problems

#### April

• Perimeter Puzzles
• A Decimeter a Day
• Color Ten
• More Division Strategies
• Line Plots

#### May

• Quilt Block Symmetries
• Water Evaporation Experiment
• Decimal Draw
• Multiplying Fractions & Whole Numbers
• Measurement Conversions

### Overview

Fifth graders add a new marker to the Calendar Grid for each day of the month. Students delve into important mathematics as they identify patterns that emerge in the markers over time. Each month also features a collection of data that students gather by taking repeated measurements, conducting surveys, and performing experiments. The patterns on the Calendar Grid and the growing collection of data provide starting points for discussions, problem solving, and short written exercises.

Every month, fifth graders have multiple opportunities to develop their problem-solving skills while tackling challenging story problems and discussing how they solved those problems. Students also have regular opportunities to play games and do exercises that develop their facility with sophisticated and efficient computation strategies. A few days each month, students solve a problem string (a carefully arranged sequence of related problems designed to elicit specific computation strategies and insights about number relationships).

The activities and games in Grade 5 Number Corner give students ongoing practice with key skills and concepts, including:

• Adding, subtracting, multiplying and dividing decimal numbers
• Finding volume
• Performing conversions within both customary and metric systems of measurement
• Graphing ordered pairs

### Content Outline

#### August / September

• Fractions & Decimals
• Layer a Day
• Multiple Game
• Solving Problems Using Multiples & Factors

#### October

• Mystery Buildings: Views & Volumes
• Carrot Graphing Experiment
• Group it!
• Solving Problems with Organized Lists
• Fraction Addition with Money & Clock Models

#### November

• Tumbling Triangles
• A Meter a Day
• Expression Bingo
• Using Logical Reasoning to Solve Problems
• Fraction Subtraction with Money & Clocks

#### December

• Student Heights & Foot Lengths
• Put It on the Line, Part 1
• Problems That Suggest Making an Informed Start
• Multiplication & Division

#### January

• Numerical Patterns & Graphs
• Time & Money
• Color Ten
• Volume Problem
• More Multiplication & Division Strings

#### February

• Using the Area Model to Multiply Fractions
• Two Liters or Spill
• I Have, Who Has?
• Conversion Problems
• Multiplying Whole Numbers by Fractions

#### March

• Multiplication with Decimal Numbers
• Line Plots & Length
• Quotient Bingo
• Student-Posed Problems

#### April

• Growing Cubes Contructions
• Collecting Quarters
• Put It on the Line Decimals
• More Student-Posed Problems
• Fraction Multiplication & Division