PPT
Curated OER

Subtraction with Base 10 Models

For Teachers 1st - 3rd
Learning how to regroup can be a difficult concept to learn, as well as teach. This PowerPoint does an excellent job at visualizing the process with step-by-step guidelines and base ten animations. There are multiple examples for...
Lesson Plan
Curated OER

Adding and Subtracting Integers

For Teachers 6th - 7th
Middle schoolers use discs in order to add and subtract integers. There are manipulatives present so kinesthetic learners can access the curriculum. They also review the concept of the opposite of positive and negative numbers.
Lesson Plan
Curated OER

Math Relay

For Teachers 4th
This is really a math review for older elementary learners to practice making equations using adding, subtracting, multiplying, and dividing in a fun way. They get to move around and play with hula hoops, bean bags, balls, and jump...
Lesson Plan
Curated OER

Fraction Food Frenzy

For Teachers 3rd - 5th
Students study addition of fractions with like denominators using illustrations and problem solving.
Lesson Plan
Curated OER

Shipping on the Hudson

For Teachers 3rd - 5th
Students track movements of ships, tugboats, and barges on the Hudson River estuary in order to practice addition and subtraction skills. They solve word problems by reading and interpreting data from a table. They calculate distances...
Lesson Plan
Curated OER

Place Value: regrouping

For Teachers 3rd
Third graders work on regrouping. In this regrouping lesson, 3rd graders use base ten blocks as manipulatives to add or subtract numbers with regrouping. They focus on place value and correctly reading their answers.
Worksheet
Curated OER

Amusement Park Basic Word Problems

For Students 1st - 2nd
In this basic math word problem worksheet, learners practice their math skills as they solve 4 word problems that require them to add and subtract.
Lesson Plan
Curated OER

Adding and Subtracting Integers

For Teachers 7th
Seventh graders review the concept of integers and how to combine them. They use the number line in different situations for the visual needed to see how adding can be done. Then students practice with numerical expressions.
Worksheet
Curated OER

Subtraction-- Fill in the Gaps 4

For Students 4th - 5th
In this math instructional activity, students find the missing numbers in 90 subtraction problems with 2 or 3 digits. The differences are provided but there are missing numbers in each problem. No strategies or examples are given.
Unit Plan
Khan Academy

Khan Academy: Add and Subtract on the Number Line Word Problems

For Students 1st - 3rd Standards
Practice adding and subtracting using the number line. Numbers used are 100 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unknown Type
Khan Academy

Khan Academy: Practice: Add and Subtract Within 100 Word Problems 1

For Students 2nd - 3rd Standards
Practice adding and subtracting within one hundred with these multiple-choice problems.
Unknown Type
Khan Academy

Khan Academy: Practice: Add and Subtract Within 100 Word Problems 2

For Students 2nd - 3rd Standards
Practice adding and subtracting within one hundred with these multiple-choice problems.