Unit 3: Operations and Algebraic Thinking Continued
Grade Level: 1st grade
Subject: Math
Length: 9 weeks (January- March)
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Topics Covered
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á´‘ Addition and subtraction within 20 to solve word problems
á´‘ Find the relationship between addition and subtraction (number bonds)
á´‘ fluent addition and subtraction within 10
á´‘ Addition within 100 using 2-digit plus 1 digit or 2 digit plus a multiple of 10
á´‘ Adding three digits, missing addends in all positions, and number families.
á´‘ mentally find 10 more or 10 less
á´‘ subtract multiples of 10 from multiples of 10
á´‘ 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