Goodwill
Gcf Global: Addition and Subtraction
Learn the basics of addition and subtraction, then practice what you've learned using the interactives.
Starfall
Starfall: Addition Sums to 10
An engaging interactive math activity where students practice adding two sets of objects with a sum less than or equal to ten.
Common Core Sheets
Common Core Sheets: Number and Operations in Base Ten 5.nbt.2 Worksheets
Print or create worksheets or flashcards to assess students' understanding of the place value system.
Better Lesson
Better Lesson: What Is a Digit
A lesson for students extend their understanding of the place value system. Students will learn how to define a digit and also identify a digit located in the ones place, the tens place, and the 100s place.
Better Lesson
Better Lesson: Go Fishing for a Ten
Second graders use a familiar card game to help them build their math fact fluency for facts where the sum is 10.
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Better Lesson: Go Fishing for Doubles
Second graders play a favorite card game which practices the quick and accurate recall of double facts.
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Better Lesson: Adding and Subtracting With Lengths
Second graders will use their addition and subtraction strategies to measure and compare distances, solving using centimeter units.
Better Lesson
Better Lesson: Applying the Basics!
Using base-ten materials and place-value skills, 2nd graders gain a better understanding of how to add and subtract numbers.
Better Lesson
Better Lesson: Any Order
The numbers in an addition number sentence (addends) can be added in any order and the sum remains the same.
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Better Lesson: Put It Together and Take It Apart
Second graders increase their understanding of place value by manipulating larger numbers.
Better Lesson
Better Lesson: Bigger or Smaller
Second grade students are asked to apply two complementary processes: counting and grouping. The conceptual understanding of the place value of a number and combining/separating numbers using place value, are critical aspects of...
Better Lesson
Better Lesson: Patterns in Larger Numbers
Patterns are everywhere. We can use patterns to help us deal with larger numbers
Better Lesson
Better Lesson: Moving Into Thousands
To make sense of numbers in the thousands, 2nd grade students need practice identifying place value positions and using place value strategies in numbers to 1,000.
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Better Lesson: Making Change Using Partners of One Hundred
Using dimes to make change is another way to work with subtracting tens within 100.
Better Lesson
Better Lesson: Subtracting With Partners of 100
When subtracting ten from a 2 digit number, 2nd graders should be able to compute the answer as fluently and comfortably as do when they add ten to a 2 digit number.
Better Lesson
Better Lesson: Manipulation Central
Not everyone solves a problem in the same way. Reinforcing that different strategies can be used effectively is the goal of this lesson.
Better Lesson
Better Lesson: Mentally Speaking!
Using base ten blocks and place value, 2nd graders explore how to become more fluent in adding and subtracting two-digit numbers without regrouping.
Better Lesson
Better Lesson: The Neighbors of Doubles
The big idea of this lesson is that students can solve for near doubles by thinking of the related doubles fact.
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Better Lesson: More Than Two Numbers
The big idea of this lesson is that three (or more) numbers can be grouped together and added. The order of this grouping doesn't matter.
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Better Lesson: Moving Along in Tens
Grouping by tens reinforces the understanding of place value
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Better Lesson: Math'n It Up!
Given a two-step word problem students will be ask to solve, and create their own math model of the given problem.
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Better Lesson: Making a Ten
Making ten is one of the foundational strategies for developing flexible numerical thinking, accuracy, and efficiency.
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Better Lesson: Double Trouble
Second graders can think about doubles facts as world situations to help commit them to memory.
Better Lesson
Better Lesson: Excellent Mathematical Explanations
Second graders use place value vocabulary to write excellent mathematical explanations about why a comparison statement is true or false.