First Grade mathematics is about (1) developing understanding of addition,
subtraction, and strategies for addition and subtraction within 20; (2) developing
understanding of whole number relationships and place value, including
grouping in tens and ones; (3) developing understanding of linear measurement
and measuring lengths as iterating length units; and (4) reasoning about
attributes of, and composing and decomposing geometric shapes.
Topics include:
- Represent and solve problems involving addition and subtraction
- Understand and apply properties of operations and the relationship between addition and subtraction
- Add and subtract within 40
- Count to 120 and extend a counting sequence from any number less than 120
- Understand place value
- Order and compare objects by lengths
- Measure and express the length of an object as a whole number of length units
- Tell and write time in hours and half hours using analogue and digital clocks
- Organize, represent, and interpret data
- Reason with shapes and their attributes