Hermit, Jessica (1st Grade)
- Canyon Springs STEM Academy
- Eureka Math
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Module 1
Sums and Differences to 10Key Common Core Standards:* Represent and solve problems involving addition and subtraction* Use addition and subtraction within 10 to solve word problems* Understand and apply properties of operations and the relationship between addition and subtraction* Apply properties of operations as strategies to add and subtract* Understand subtraction as an unknown-addend problem* Add and Subtract within 10 (eventually within 20)* Relate counting to addition and subtraction* Work with addition and subtraction equations* Understand the meaning of the equal sign* Determine the unknown whole number in an addition or subtraction equation relating three whole numbersKey Vocabulary:Count On - students count up from one addend to the totalExample: for 5 + 4 they would start with 5, then count 6 . . 7 . . 8 . . 9 to get the total of 9Expression -Example: 2 + 1 or 5 + 5 (expressions do not have an equal sign, thus are not equations)Addend - one of the numbers being added in an addition problemDoubles -Example: 3 + 3 or 4 + 4Doubles Plus 1 -Example: 3 + 4 or 4 + 5Part -Example: "What is the unknown part? 3 + ___ = 8 "Equation and Number Sentence - these words are used interchangeably throughout the moduleNumber Bond - a graphic showing part / part / whole