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First Grade Math
Here are some of the most important concepts for first grade math according to the State Standards:
1. Addition and subtraction facts within 20- Students should be able to quickly solve addition and subtraction facts within 10 and use strategies to solve facts within 20.
2. Place Value- Students should be able to add and subtract multiples of 10 (ex. 21+30). Students should be able to compare numbers using greater than and less than. Students should understand that teen numbers are a ten and some ones. An understanding of teen numbers will expand to understanding the hundreds, tens, and ones place.
3. Measurement- Students should compare objects by length (ex. put objects in order from shortest to longest). Students should be able to use nonstandard measurement to measure objects (ex. use crayons to measure the length of a book).
4. Geometry- Students should understand the characteristics of 2D and 3D shapes. They should be able to compare and contrast shapes. Students should be able to put shapes together to make new shapes and know what shapes were used to make new shapes (compose and decompose shapes).