Curated OER
Calculating Elapsed Time
Learners calculate elapsed time in a series of activities. In this calculating time lesson plan, students view a Cyberchase video that demonstrates how to calculate elapsed time. Activities include counting, subtracting and regrouping in...
Curated OER
Add or Subtract Whole Numbers Up to 1000
Elementary schoolers solve practice problems on the board and are shown how to line up the numbers for addition. They solve various addition problems in small groups. Everyone continues the same process for solving subtraction problems.
Curated OER
Investigation - Snack TIme
Students explore solving addition and subtraction problems. They solve real life problems. Students participate in a simulation activity to find the missing addend. They demonstrate adding and subtracting whole numbers.
Curated OER
Subtraction Practice, Part 2
For a quick subtraction drill, these 17 problems are a great addition to your math lesson. All problems use multiples of ten, ranging from 10 to 90. Use the activity as a timed quiz or more thorough review assignment.
Curated OER
Is That Your Final Answer?
This unit on integers includes a pre-test, a post-test, four spreadsheets, and links to an interactive web-site to support the learning of integer operations. Access to computers and the Internet are imperative to this unit. The lessons...
Curated OER
Place Values - Subtracting
Students explore the concept of place value. In this place value lesson, students subtract numbers from a specific place value.
Curated OER
Adding and Subtracting with Negative Integers
Students add and subtract using negative integers. In this negative integers lesson plan, students listen to examples provided by the teacher and then complete problems where they add and subtract negative integers.
Curated OER
Subtracting Across Zeros
For this subtracting across zeros worksheet, students analyze the information and examples for how to regroup multiple times if there are zeros in a series. Students then solve 9 problems.
Curated OER
Subtracting Four with Gingerbread Men
In this subtracting four with gingerbread men learning exercise, students solve the subtracting 4 problem by matching the gingerbread men with the correct answer.
Curated OER
Adding & Subtracting Decimals
Learners add and subtract decimal numbers. Using a specified website, students play an addition game. As they solve problems on the website, learners may check their answers. Students play the game on the internet, and then perform...
Curated OER
Measurement of Time: Post Test
In this measurement of time worksheet, students complete 10 multiple choice questions. Students may click on a link to view correct answers.
Curated OER
Measurement of Time: Pre Test
In this measuring time worksheet, students answer a set of 10 multiple choice questions. Students may click on an answer link.
Curated OER
Introduction: Time Word Problems
In this word problems activity, students read through 2 time word problems and the answers to each problem. They then solve 2 time word problems on their own.
Blogger
Integer Operations Posters
Eliminate young mathematicians' confusion over performing operations with integers using this set of classroom displays. Providing learners with simple, easy-to-follow rules, this resource will have students fluently adding, subtracting,...
Royal Baloo
Star Wars K-2nd Math Pack
Included in a Star Wars themed packet, young padawans enhance mathematical skills such as graphing, computing using basic operations, counting numbers and money, telling time, and measuring. Scholars play a game of sudoku, read number...
West Contra Costa Unified School District
Using Bar Models to Solve Rate Problems
Pupils visualize distance-rate-time problems by using bar models. The lesson presents examples of four different types of rate problems and shows how they can be solved using bar models and equations. Each example is followed by a...
DK Publishing
Real-Life Problems, Large Numbers
Do your fourth graders have a hard time showing their work when solving word problems? This helpful worksheet provides two separate spaces for learners to show their work and to fill in the answer. The first problem is solved for them as...
Curated OER
Adding and Subtracting Fractions
In this adding and subtracting fractions worksheet, students solve 5 sets of problems related to the adding and subtracting of fractions. First, they identify that each fraction has a common denominator and then simplify by adding or...
Houghton Mifflin Harcourt
Add and Subtract Fractions with Unlike Denominators
Follow the Jones family on their summer vacation by adding and subtracting fractions with unlike denonminators. Pupils compute how much luggage space is filled, how much chicken is eaten, and what distances are covered both by car and on...
Houghton Mifflin Harcourt
Add and Subtract Fractions with Unlike Denominators
Once your math class has mastered the skill of adding and subtracting fractions with uncommon denominators, let them apply it to real-life problems. Six scenarios are presented for them to solve, all involving pizza! A tasty test for...
Curated OER
Do I Add? or Subtract?
Fourth graders read a book. In this word problems lesson plan, 4th graders review the operations addition and subtraction, read the book Sea Sums, learn strategies for determining if they should add or subtract, and solve story problems,
Curated OER
Subtract with 2 Regroupings
In this subtraction practice instructional activity, students sharpen their problem solving skills as they solve 6 story problems that require them to subtract with 2 regroupings.
Curated OER
Circles and Clocks, Shapes and Time
Learners work in groups to research clocks and practice telling time. In this telling time lesson, students use the computer program ProQuest to study circles, including radius and diameter, and practice drawing circles using a compass....
Curated OER
Add or Subtract Part 2
In this addition and subtraction worksheet, students write and solve 6 number sentences to find the answers to each word problem. Students write their answers in a sentence format.