Arithmetic

Unit 1

• Count beyond 100
• Start with any number less than 120 and count forward
• Write a numeral to name numbers to 1,000
• Understand place value to 99
• Use properties of addition and subtraction (commutative, associative, identity, inverse operations)
• Use place value and properties to add and subtract within 100

Unit 2

• Skip count by twos, fives, and tens
• Mentally add or subtract 10 from any two-digit number
• Add and subtract multiples of 10
• Show or write problems involving addition and subtraction
• Solve problems (including word problems) involving addition and subtraction
• Add and subtract within 20

Unit 3

• Create and work with addition and subtraction equations
• Find missing numbers in equations
• Compare and describe attributes of shapes
• Distinguish between different attributes of shapes
• Build and draw shapes with specific attributes (such as three sides)
• Draw or create and name two-dimensional shapes (rectangles, squares, circles, triangles, and half circles)

Unit 4

• Draw or create and name three-dimensional shapes (cubes, cones, and rectangular prisms)
• Compose two-dimensional shapes from other shapes
• Divide circles and rectangles into two and four equal shares, using the words half and quarter
• Measure and express length by repeated same-length units
• Put three or more objects in order by length
• Tell and write time in hours and half hours
• Organize, represent, and interpret data with up to three categories on tables and simple graphs
• Compare number of points or items in different categories