Lesson Plan
Curated OER

Number Stories

For Teachers 1st - 2nd
Students write and solve various number stories. They solve number stories using one, two and three digit numbers. Students practice writing sentences using the following 6+1 traits, ideas and content, organization, word choice and...
Worksheet
Curated OER

Subtraction In Two Digits

For Teachers 2nd - 3rd
In this math activity, students find the answers to the subtraction problems using two digits. The answers are found at the bottom of the page.
Worksheet
Curated OER

Subtracting Twos (A)

For Students 1st - 2nd
In this subtraction review learning exercise, students use problem solving skills to solve 21 problems that require them to subtract 2 from various 1 digit numbers.
Worksheet
Curated OER

Subtraction Worksheet

For Teachers 1st - 3rd
For this math worksheet, students look for the answers to the 25 subtraction problems. The solutions are found at the bottom of the page.
Worksheet
Curated OER

A Frightening Mix of Math, A-Add or Subtract, But Look Out for the Monsters

For Students 2nd - 3rd
In this math worksheet, students add and subtract. Fifteen problems are subtraction, students subtract two digit numbers from three digit numbers. Regrouping is required. Twenty-one problems are addition, students add two digit numbers...
Worksheet
Curated OER

Mystery Numbers

For Students 3rd - 4th
In this mystery number worksheet, students begin with a 3 digit number and using the code key, find the sum or difference in each shape as a spiral puzzle is solved.
Worksheet
Curated OER

Use Negative Numbers

For Students 3rd - 4th
In this problem solving worksheet, students read and solve 6 story problems pertaining to borrowing and paying back money. Students use instead simple subtraction and addition. No answers will be negative numbers.
Worksheet
Curated OER

Triple Digit Subtraction

For Teachers 1st - 3rd
In this math worksheet, students look for the answers to the 25 subtraction problems on the sheet. The ads are not appropriate for kids.
Worksheet
Curated OER

Subtract by Finding Difference-Counting On

For Students 3rd - 4th
In this subtraction worksheet, students solve a total of 10 problems, first "counting on" to solve, then determining whether to partition or count on to complete additional problems.
Worksheet
Curated OER

Estimating Sums and Differences

For Students 4th - 6th Standards
Work on rounding, estimating, adding, and subtracting with a helpful math worksheet! Fifth graders study different sets of addition and subtraction problems, and after rounding each number to the leading digit, they estimate what the sum...
Worksheet
Helping with Math

Addition: Number Bonds to 20

For Students 1st - 3rd Standards
Pupils fill in the missing addend to an addition problem that adds up to 20. This number could be a one-digit or two-digit number. They complete a total of  41 missing addend problems. Answers are available.
Worksheet
Curated OER

Estimating Differences of Money

For Students 5th Standards
When it comes to money math, show scholars that estimation is their best friend. They round money values to the closest dollar, 10 dollar, and 100 dollar increments, solving 19 addition and subtraction problems with approximate answers....
Lesson Plan
Curated OER

Credible Sources on the Internet: What to Trust, What to Dismiss and When to Cite a Source

For Teachers 6th - 12th
Wait, you mean researchers don't all use Wikipedia? Teach your class about intelligent research with a lesson about evaluating digital sources. The lesson starts with a quickwrite and includes vocabulary exercises and several...
Lesson Plan
Curated OER

Making a Ten

For Teachers 1st - 3rd Standards
An addition table supports third graders as they learn strategies to improve their math fluency. When finding sums greater than ten, students are taught how to first make a ten and then add on the rest. A similar method is also...
Lesson Plan
Curated OER

Rounding and Significant Digits

For Teachers 2nd - 4th
Practice rounding numbers to a certain decimal by solving in-class problems. Learners will solve several multiplication, division, addition, and subtraction problems while rounding to a specific decimal. They will also check their work...
Worksheet
Curated OER

Identifying Patterns

For Students 3rd - 4th
Find the pattern! Eighteen number sequences challenge scholars to identify and complete the pattern, adding at least four digits to the given numbers. All the sequences here involve skip counting by various single-digit numbers,...
Worksheet
DK Publishing

Counting Caterpillars

For Students 1st - 2nd Standards
These caterpillars each have a number sequence printed on their segmented bodies, but some numbers are missing! Look at the completed caterpillars as an example, asking kids to notice a possible pattern. They should observe that the...
Lesson Plan
Curated OER

Comparing Kwakiutl, Cheyenne and Navajo tribes

For Teachers 3rd
Third graders study the difference between the Kwakiutl, Cheyenne and Navajo tribes. They identify the people, resources, lifestyle and beliefs of the Kwakiutl, Cheyenne, and Navajo Indians. Afterward, they present their projects on each...
Lesson Plan
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Curated OER

Idioms in Everyday Language

For Teachers 8th - 12th
Learners describe idioms and their use in everyday language. They describe the difference between literal and idiomatic meanings. In groups, students use iPhoto to create books that explain and illustrate a variety of idioms describing...
Worksheet
Curated OER

Counting by 3s, 4s, and 5s

For Students 1st - 2nd Standards
Skip count along the mushrooms to complete these number sentences which give young scholars an introductory look at addition and subtraction. Starting from five double-digit numbers, they subtract or add by threes, fours, and fives to...
Worksheet
Curated OER

Missing Addends

For Students 1st - 2nd
Where are all the addends? Addition novices solve 36 equations by filling in the single-digit addend to achieve the given sum. They reference several examples, each of which include object sets to help learners visualize the...
Activity
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Illustrative Mathematics

Identifying Multiples

For Teachers 3rd - 5th Standards
Administer an activity that fosters a child's understanding of multiples. Young mathematicians are guided to complete three tasks on a multiplication chart. Once they color the boxes with multiples of two, three, and four, learners...
Lesson Plan
Curated OER

Mondrian - Primary/Secondary Color Study

For Teachers 7th - 12th
Utilizing computer software, learners demonstrate the color spectrum. They investigate the life of the artist Piet Mondrian and define his style of artwork. Then they use Photoshop to recreate some of his designs while discovering the...
Handout
Charleston School District

Scientific Notation Operations

For Students 8th Standards
How do you operate with numbers in scientific notation? The resource provides examples on how to divide and multiply with numbers written in scientific notation. The handout and video also cover the procedure for addition and subtraction...