GRADE 1MATH: NINA'S NUMBERS - New York City Department of ...

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Grade: 1. Subject: Math. Task Description: This task allows students to ... OA.1 Use addition and subtraction within 20 to solve word problems involving situations ...
GRADE 1 MATH: NINA’S NUMBERS UNIT OVERVIEW This packet contains a curriculum-embedded CCLS aligned task and instructional supports. The task is embedded in a 2-3 week unit on Number and Operations in Base 10. The mathematics of the unit involves understanding the meaning of base ten and using that understanding to solve number and real life problems. Students will use a variety of tools to help articulate understanding of base ten and to solve problems using addition and subtraction of numbers less than 10, less than 20 and on to less than 100. TASK DETAILS Task Name: Nina’s Numbers Grade: 1 Subject: Math Task Description: This task allows students to demonstrate their understanding of place value. Throughout the task they are required to use operations to solve problems, understand and apply properties of numbers, and compose and decompose numbers in flexible ways. Standards Assessed: 1.NBT.2 Understand that the two digits of a two-digit number represent amount of tens and ones. Understand the following as special cases: a) 10 can be thought of as a bundle of ten ones – called a “ten.” b) The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones. c) The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones). 1.NBT.3 Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and