Unit 2: Operations and Algebraic Thinking

Grade Level: 1st grade

Subject: Math

Length: 8 weeks (October/November/December)

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Topics Covered

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ᴑ Addition and subtraction within 20 to solve word problems
ᴑ Find the relationship between addition and subtraction (number bonds)                                              

ᴑ fluent addition and subtraction within 10
ᴑ Addition within 100 using 2-digit plus 1 digit or 2 digit plus a multiple of 10
ᴑ  Adding three digits, missing addends in all positions, and number families.                                          

ᴑ mentally find 10 more or 10 less
ᴑ subtract multiples of 10 from multiples of 10
ᴑ learn multiples strategies for adding and subtracting (i.e. count up with fingers, count up on a number line, use manipulatives/ counters, draw tallies, draw pictures, ten frames, and touch math)

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Standards

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1.NBT.C.3-5                                    

All 1.OA standards