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

Content Outline

August / September

  • Place Value Models
  • Fives & Ones with Nickels & Pennies
  • Finding Five
  • Adding Ten & More
  • The First Two Decades


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


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


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


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


  • Geoboard Shapes
  • Collecting Cubes
  • One Hundred Days of School & More
  • Multiple Addends
  • The Tenth Decade


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


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

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