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Grade 1 Math Courses - PEI Curriculum

Explore PEI's Grade 1 math curriculum, focusing on foundational skills in number sense, basic operations, and problem-solving. Set your child on the path to mathematical success.

PEI Grade 1 Math Curriculum - Foundations for Success

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CO_ID
Curriculum Outcome
StudyPug Topic
PI.CO.1.N.1
Say the number sequence, 0 to 100, by 1s forward and backward between any two given numbers; 2s to 20, forward starting at 0; and 5s and 10s to 100, forward starting at 0:
Missing values in a number grid up to 100
Grouping even or odd numbers
Completing a skip-counting table
Number sequences with 1,2,3,5,10
Counting forward and backward
Number sequences up to 10
PI.CO.1.N.2
Recognize, at a glance, and name familiar arrangements of 1 to 10 objects or dots:
Converting dot grids to numbers up to 100
Even or odd numbers of objects
Identifying a number as even or odd
Counting numbers using objects up to 5
Matching objects with numbers up to 5
PI.CO.1.N.3
Demonstrate an understanding of counting by indicating that the last number said identifies how many; showing that any set has only one count; using the counting on strategy; and using parts or equal groups to count sets:
Organizing data
Counting equal groups up to 10
Ordinal numbers
Counting objects using numbers up to 5
Counting up to 20
PI.CO.1.N.4
Represent and describe numbers to 20 concretely, pictorially and symbolically:
Using models to add up to 20
Subtracting with objects up to 20
Counting the value of a digit up to 99
Place values of digits up to 99
Numeral expanding up to 99
Writing numbers as words
Writing words as numbers
PI.CO.1.N.5
Compare sets containing up to 20 elements to solve problems using referents and one-to-one correspondence:
Comparing two numbers
Comparing three numbers
PI.CO.1.N.6
Demonstrate, concretely and pictorially, how a given number can be represented by a variety of equal groups with and without singles:
Groups and arrays up to 10
Understanding the multiplication sign up to 10
Identifying tens and ones
PI.CO.1.N.7
Identify the number, up to 20, that is one more, two more, one less and two less than a given number:
Adding one up to 5
Taking away one up to 5
Predicting the next number up to 5
Before, between, or after a number up to 10
PI.CO.1.N.8
Demonstrate an understanding of addition of numbers with answers to 20 and their corresponding subtraction facts, concretely, pictorially and symbolically:
Adding with digits up to 20
Adding with 3 numbers up to 20
Adding numbers with 5s and 10s
Addition facts up to 20
Addition with regrouping up to 20
Verifying addition statements
Addition word problems up to 20
Subtracting with digits up to 20
Subtracting with the number zero
Subtraction facts up to 20
Completing subtraction statements up to 20
Understanding the subtraction sign
Verifying subtraction statements
Subtraction word problems up to 20
PI.CO.1.PR.3
Describe equality as a balance and inequality as an imbalance, concretely and pictorially (0 to 20):
Comparing values up to 99

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