Curated OER
Book Title: Ten Flashing Fireflies
This lesson engages learners in a variety of activities to build 1 to 1 correspondence, estimation, and problem solving skills. They discuss problem solving strategies, hear the story Ten Flashing Fireflies, compose their own word...
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Solve Story Problems: Sold! A Mathematics Adventure
Young mathematicians listen to the book Sold!: A Mathematics Adventure by Nathan Zimelman where they encounter ways to solve story problems. They then create and solve start unknown addition and subtraction equations. Resource builds in...
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Addition and Subtraction
Students develop their own strategies to solve basic addition and subtraction facts. In this addition and subtraction lesson plan, students use strategies they already know and new ones to solve problems.
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Checking Subtraction with Addition and Writing Number Sentences
In this math worksheet, students complete 12 subtraction problems which they check with addition. They solve 6 short mixed word problems and write a number sentence for each while solving it.
Helping with Math
Subtraction : 3-digit - 3-digit
In this subtraction worksheet, math wizards subtract three-digit numbers from different three-digit numbers. Some of the 24 problems require regrouping.
Helping with Math
#5: Addition & Subtraction Equations (1 of 2)
Single-step addition or subtraction operations are applied in order to solve these 12 simple equations. An answer key is available, not so much for you, but perhaps to be used by learners as a self-correction tool. Note that the...
Helping with Math
#6: Addition and Subtraction Equations (2 of 2)
This printable contains 12 basic equations to be solved. The first one is worked out as an example, and the answers for all can be found by clicking on a "Show Answers" box found on the website. The publisher has identified this as...
Curated OER
Subtraction: Two Digit By One Digit With Regrouping
For this subtraction worksheet, 3rd graders find the differences to 30 problems in which they subtract a one digit number from a two digit number. They regroup as needed.
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Subtraction - Numbers to 19 ( 3 of 3)
In this subtraction worksheet, students find the differences in 30 vertical problems which use numbers up to nineteen. They do not regroup as they solve the problems in which they subtract a single digit number from a two digit number.
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Subtraction: One Digit from Two Digits With No Regrouping
In this subtraction worksheet, 3rd graders find the differences to 30 problems in which they subtract a one digit number from a two digit number. They regroup as needed.
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Math Lesson Study Plan
Second graders find missing addends by solving math word problems. In this missing addend lesson, 2nd graders work in a whole group setting to find the missing addends in word problems before using the strategies to work independently....
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Subtraction Worksheet : Numbers to 19 (1 of 3)
In this subtraction worksheet, students find the differences to 53 horizontal and vertical subtraction problems. They work with numbers up to 19 and do not regroup while working.
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Grade 5 Basic Math
In this grade 5 math worksheet, 5th graders answer a set of 22 multiple choice problem solving and estimation questions. Worksheet may be completed on-line and answers submitted.
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Factoring Polynomials
Young mathematicians examine the "Tic-tac-toe" factoring method to factor polynomials. They use algebra tiles to model solutions of binomial multiplication problems. They discuss strategies and observe teacher-made models for solving...
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Cuisenaire Rods And Math
Students find the least common multiple of several given numbers using Cuisenaire rods. Previously taught math skills are reinforced by using Cuisenaire rod games, puzzles and or activities.
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Chicken Pox Math
Second graders are read a story about a boy with chicken pox. As a class, they discuss what to do when you have a contagious disease and identify who in the class has had chicken pox. Using this information, they create a graph and use...
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Number Lines and Bead Strings
Students solve addition and subtraction problems using strings of beads and number lines. They mentally perform addition and subtraction problems, and write and solve story problems involving whole numbers.
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Gathering Data to Problem Solve
Students, while using reading and writing strategies (subheads, prediction, skim, details, drawing inferences, etc,), solve math problems that involve gathering and representing data (addition, subtraction, multiplication). They practice...
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Number and Operations: Webbing Our Way Through Numbers
Second graders explore estimation and place value. For this place value lesson, 2nd graders estimate and construct numbers while working with spider activities. Students use addition and subtraction to compare estimates. Resources and...
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How Does Your Garden Grow?
Students construct and maintain a school garden. In this gardening lesson, students plan the construction of the garden by writing letters to local businesses asking for supplies and materials; students build the garden using their math...
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Life is Full of Problems
Pupils use the problem solving strategy of guess and check to investigate math word problems. They determine which problem solving strategy or strategies would work best in problem situations.
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The Difference Bar 2
Young scholars use Internet software, The Difference Bar, to work out the difference between two numbers by breaking numbers into parts. Students use mental strategies to work out the difference between any 2 two-digit numbers. Young...
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Addition and Subtraction Facts To 20
First graders use manipulatives, flash cards, number sentences and story problems to practice their addition and subtraction facts to twenty.
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Subtraction-- Fill in the Gaps
In this math worksheet, students practice finding the missing numbers in a subtraction problem. There are 90 subtraction problems which are written horizontally, most with 2 digits. The answers are shown, but there is a missing number in...