The California 
Content Standards for
Grade 1
Mathematics

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Number Sense
Algebra and Funtions
Measurement and Geometry
Statistics, Data Analysis and Probability
Mathematical Reasoning

 
 

FIRST GRADE
    MATHEMATICS
      NUMBER SENSE
          Skills: 
          1.1 Count, read and write whole numbers to 100 
          1.2 Compare and order whole numbers to 100 using the symbols for less than, equal to, or greater than (<,=,>)
          1.3 Represent equivalent forms of the same number through the use of physical models, diagrams and number expressions (to 20) 
          1.4 Count and group objects into ones and tens 
          1.5 identify and know the value of coins and show different combinations of coins that equal the same value 
          Skills: 
          2.1 Know the addition facts (sums to 20) and the corresponding subtraction facts, and commit them to memory 
          2.2 Use the inverse relationship between addition and subtraction to solve problems 
          2.3 Identify one more than, one less than, ten more than, ten less than a given number 
          2.4 Count by 2s, 5s, and 10s with number to 100
          2.5 Show the meaning of addition (putting together, increasing) and subtraction (taking away, comparing, finding the difference) 
          2.6 Solve addition and subtraction problems with one-digit and two-digit numbers 
          2.7 Find the sum of three one-digit numbers 
          Skills: 
          3.1 Make reasonable estimates when comparing larger or smaller numbers
      ALGEBRA AND FUNCTIONS
          Skills: 
          1.1 Write and solve number sentences from problem situations that express relationships involving addition and subtraction 
          1.2 Understand the meaning of the symbols +, -, = 
          1.3 Create problem situations that could lead to given number sentences involving addition and subtraction 
      MEASUREMENT AND GEOMETRY
          Skills: 
          1.1 Compare the length, weight and volume of two or more objects using direct comparison or a non-standard unit 
          1.2 tell time to the nearest half hour and compare time related to events 
          Skills: 
          2.1 Identify, describe, and compare triangles, rectangles, squares and circles, including the faces of three-dimensional objects 
          2.2 Classify familiar plane and solid objects by common attributes like color, position, shape, size, roundness, number of corners and explain which attributes are being used for classification 
          2.3 Give and follow directions about location 
          2.4 Describe and arrange objects in space in terms of proximity, position and direction
      STATISTICS, DATA ANALYSIS AND PROBABILITY
          Skills: 
          1.1 Sort objects and data by common attributes and describe the groups formed using categorical labels 
          1.2 Represent and compare data using pictures, bar graphs, tally charts and picture graphs 
          Skills: 
          2.1 Describe, extend and explain how to get to the next element in simple repeating patterns 
      MATHEMATICAL REASONING
          Skills: 
          1.1 Decide about the approach, materials and strategies to use 
          1.2 Use tools such as manipulatives or sketches to model problems
          Skills: 
          2.1 Explain the reasoning used and justify the procedures selected
          2.2 Make precise calculations and check the validity of the results from the context of the problem