Grade 1 Math Topics

First Grade

In the second trimester of the school year, first grade students will work on the following skills:

  • Counting and number patterns to 120
  • Thinking about the place value of tens and ones
  • Comparing and ordering numbers through 100
  • Learning about 2-dimensional shapes
  • Dividing circles and rectangles into halves and fourths
  • Working on facts within 20
  • Learning about dimes

You can help your child at home by having them practice these skills.  Knowing their basic addition and subtraction facts, especially the combinations to make 5 and 10, will make more complex math in the year and beyond much easier. Having children experience various situations where they would add or subtract is important for life.  

Students begin to analyze 2-D shapes by their sides and vertices or corners.  They also begin to think of equal shares of halves and fourths, which build as they move up towards middle school.  When cutting up a sandwich, try cutting it into halves or fourths and asking your child what they notice about the pieces.  

Students in Kindergarten worked on decomposing the teen numbers into a ten and some more (ex. 14 = 10 + 4).  As they move into learning place value of tens and ones they do the same with larger numbers (ex. 56 = 50 + 6).  This will build flexibility when performing operations with larger numbers later on.  As you walk or drive around town, ask your child to read numbers they see.  Can they read the numbers on a house or street sign?  Can they break the number apart into tens and ones?

Here are some other resources:

  • Make a set of flashcards for addition or subtraction.

Up Next: Adding and subtracting with tens and ones and telling time to the hour and half-hour.