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Features

  • The goal and its "I can" line, what to get ready and the words to use
  • A 45 minute lesson in five steps (warm up, teach with words to say, try it together, practice, exit ticket)
  • Questions to ask, and the mistakes students make and what to do about them
  • Ideas for students who need help or are ready for more
  • Each plan ends with the Animal Math worksheets, worksheet makers, tools and quiz for that lesson
  • Lessons: 10 more, 10 less, 100 more and 100 less, adding and subtracting hundreds and tens, adding with blocks and quick drawings, partial sums, adding in columns, subtracting with blocks, breaking apart to subtract, subtracting in columns across a zero, and explaining the method and finding the mistake
  • Lesson 10.10 (story problems within 1,000) is for the states that teach it in 2nd grade

2nd Grade Math CurriculumUnit 10

These are the lesson plans for Unit 10 of 13 in the 2nd Grade Math Curriculum: 128 lessons in teaching order, week by week, each with a lesson plan and an exit ticket.

Also for this unit: this unit’s exit tickets and this unit’s test. See the whole year

Resources for Each Lesson

Everything each lesson plan points to, with links. Sheet numbers count worksheets: a color pack prints each sheet again in black and white.

10.1 10 more, 10 less, 100 more, 100 less

10.2 Add and subtract hundreds and tens

10.3 Add with blocks and quick drawings

10.4 Add by place value: partial sums

10.5 Add in columns: regroup ones, tens or both

10.6 Subtract with blocks: break a ten or a hundred

10.7 Break apart to subtract within 1,000

10.8 Subtract in columns, across a zero

10.9 Explain the method; find the mistake

10.10 Story problems within 1,000 ★

★ Taught in 2nd grade in some states.

Skills Covered

  • 10 more, 10 less, 100 more and 100 less
  • Add and subtract hundreds and tens
  • Add with base-ten blocks and quick drawings
  • Add by partial sums
  • Add in columns, regrouping ones, tens or both
  • Subtract with blocks: trade a ten or a hundred
  • Break apart the number you take away
  • Subtract in columns, across a zero too
  • Explain the method and find the mistake
  • Solve story problems within 1,000

How to Use This Pack

Ten lesson plans, one for each lesson of a 2nd grade unit on adding and subtracting within 1,000, in teaching order, after an overview page that lays the unit out day by day: a pre-check, the ten lessons, a review and the unit test. Each plan fits on one page. It gives the goal, what to get ready, the words to use, the lesson in five steps with the words to say, questions to ask, common mistakes and what to do about them, and the Animal Math worksheets, makers, tools and quiz for the lesson.

In the Classroom

Print the unit, or just the day's page, and teach from it. Each lesson takes about 45 minutes: a 5 minute warm up, 10 minutes of teaching, 10 minutes together, 15 minutes of practice and an exit ticket at the end. The exit tickets and the unit test are separate packs, made for these lessons. Lesson 10.10 (story problems within 1,000) is taught in 2nd grade in some states, such as Texas; skip it if yours teaches it in another grade.

At Home

Teaching at home? Use the warm up and the "Try it together" step as a short lesson, and the "Words to use" as the way to talk about it. Paper squares, strips and dots work as well as base-ten blocks. The mistakes to watch for are the ones most children make.

Tips for Success

  • Read the "Watch for" box before the lesson: it is what to listen for while students work
  • Keep base-ten blocks on the tables for the whole unit
  • Have students check every subtraction by adding the answer back
  • Sort the exit tickets into got it, almost and not yet to plan the next day
  • Use the help and challenge ideas for small groups during practice

Common Core Standards Alignment

This pack supports the following Common Core State Standards for Mathematics:

  • 2.NBT.B.5 Add and subtract to 100 fluently with place-value strategies, properties of addition, or the link between adding and subtracting.
  • 2.NBT.B.6 Find the sum of two, three or four two-digit numbers using place value and properties of addition.
  • 2.NBT.B.7 Add and subtract to 1,000 with models and place-value strategies, working hundreds, tens and ones separately and regrouping tens or hundreds as needed.
  • 2.NBT.B.8 Mentally find the number 10 or 100 greater or smaller than any number from 100 to 900.
  • 2.NBT.B.9 Tell why an adding or subtracting method gives the right answer, reasoning from place value and number properties.
  • 3.OA.D.8 Solve two-step story problems with +, −, × and ÷, using a letter for the missing amount, and check answers by estimating or rounding.

© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.

2nd Grade Add and Subtract Within 1,000 Lesson Plans

Lesson plans for every lesson of a unit on adding and subtracting within 1,000, from 100 more and 100 less to subtracting across a zero. Each one-page plan gives a lesson in five steps, common mistakes and the worksheets to use, after a unit overview.

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What’s Included

  • 10 one-page lesson plans, one for each lesson of the unit
  • A unit overview: the unit day by day, what to get ready, how each lesson goes
  • Words to say, questions to ask and common mistakes for every lesson
  • The worksheets, makers, tools and quiz for each lesson (11 pages in all)
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