Welcome to Math at Mallett in 1st Grade! 

First Grade mathematics is about:

• Developing understanding of addition, subtraction, and strategies for addition and subtraction within 20.
• Developing understanding of number relationships and place value, including grouping in tens and ones. 
• Developing understanding of linear measurement and measuring lengths as repeating length units.
• Describing, composing, and decomposing geometric shapes.

By the end of this year, students learn:

• to count to 120 from any number other than 1.  
• to solve a variety of addition and subtraction word problems. 
• that the numbers 11-19 are made of a ten and some more ones, and that the decade numbers (10, 20, 30, etc.) are made of 1 ten, 2 tens, 3 tens, etc. 
• the addend pairs for numbers 1-10.  
• to describe shape attributes, and put shapes together to make new shapes, like putting two triangles together to make a rectangle.  
• to compare and order objects by length.