Lesson Plan
Curated OER

Fact Family Frenzy

For Teachers 2nd
Second graders explore fact families and inverse relationships between addition and subtraction. They use flashcards to model the inverse relationships. Students complete the equations for each fact family.
Worksheet
Curated OER

Problem Solving: Choose the Operation

For Students 1st - 2nd
For this operations worksheet, learners read the math word problems and then choose an operation to solve the problem. Students may use addition or subtraction to solve.
Worksheet
Curated OER

Thanksgiving Subtraction

For Students K - 1st
In this basic mathematics activity, learners use Thanksgiving images to help them solve each problem. They find the difference for each subtraction problem.
Worksheet
Curated OER

Rewrite by Factoring

For Students 7th
In this factoring worksheet, 7th graders solve and complete 20 different problems that include rewriting the expression. They rewrite each expression shown by factoring. Students determine the common factors in each of its terms. Then,...
Lesson Plan
Curated OER

Music Education, The Blues

For Teachers Pre-K - 6th
This lesson examines both the content and form of lyrics in blues songs. In addition to highlighting the basic musical form of a blues song, it also addresses the use of floating verses in blues music, both within the context of the...
Worksheet
Curated OER

What a Plan!

For Students 3rd
Word problems and the strategies to solve them are the focus of this worksheet. Students are given 3 word problems and are prompted to write out their plan for solving each problem. The fourth problem tells students to write out his or...
Worksheet
Curated OER

Adding Fractions with the Same Denominator

For Students 4th - 6th
In this fraction worksheet, students practice adding fractions with the same denominator. The questions simplify the difficult concept with eight single digit equations and challenge students with two double digit problems.
Worksheet
Curated OER

Adding and Subtracting Up to 5

For Students K - 1st
Basic addition and subtraction need to be mastered before moving on to more challenging mathematics. This resource provides learners with one addition and one subtraction problem. They read the explanation included to learn how to solve...
PPT
Curated OER

Petroglyphs

For Teachers 6th - 8th
Petroglyphs and pictographs are compared in these simple slides.  Some of the terms are very specific, but the basic information will be useful to accompany a lecture about this visual art form.  Images and real examples would...
Worksheet
Curated OER

Worksheet #10

For Students 2nd
In this mathematics worksheet, 2nd graders solve various problems by either adding or subtracting when necessary two-digit terms. They use a number line at the top for help solving each.
Worksheet
Curated OER

Count On

For Students 1st - 3rd
In this counting worksheet, students are asked to start at one number and then count up from the number x amount. For example, they are asked to "Count on 6 from 143", and the answer is 149. There are 7 problems on this worksheet and the...
Lesson Plan
Curated OER

Number Books

For Teachers 1st - 4th
Students construct a book to illustrate number concepts. They write their numbers on a sheet of paper. Students in grade 1 discuss counting to 100 by different numbers. Pupils in grades (2-4) write basic addition or subtraction story...
Lesson Plan
Curated OER

To Smell or Not to Smell, That is the Ester

For Teachers 9th - 12th
Students explain the basic concepts of polymerization. Students participate in a lab to create a crude preparation of carboxyl esterase and test its effectiveness in reducing the residual monomer in an emulsion such as paint.
Lesson Plan
Curated OER

Clock Arithmetic and Cryptography

For Teachers 2nd - 5th
Learners perform basic operations in modular (clock) arithmetic. Students encode and decode messages using shift and affine ciphers. Learners apply their multiplication, division, addition, and subtraction skills.
Lesson Plan
Curated OER

Building Word Problems

For Teachers 6th
Sixth graders study addition and subtraction facts. In equal groups, they play a race game to correctly solve addition and subtraction problems. Using a PowerPoint presentation, the teacher demonstrates how to write word problems and...
Lesson Plan
Curated OER

Math Stars

For Teachers 2nd
Second graders study addition math facts up to 20. They have 15 seconds to answer each problem using the number keys on the keyboard to type the answer. They may choose Change Settings to make the game harder or easier. Answering them...
Lesson Plan
Houghton Mifflin Harcourt

Introducing the Concept: Adding and Subtracting With Negative Integers

For Teachers 5th - 7th Standards
A basic narrative is outlined for teaching a lesson on the addition and subtraction of integers. Using a number line, you can demonstrate how to find the sum of a positive and negative integer. On the right side of the page are links to...
Lesson Plan
Curated OER

Number and Number Relations: Lesson 4

For Teachers 4th
Fourth graders investigate the use of addition and subtraction facts in different situations. They examine the relationship between addition and multiplication and determine which operation is needed to solve various problematic situations.
Lesson Plan
Curated OER

Mental Math Counts

For Teachers 5th - 7th
Students use mental math. They describe reasonable and unreasonable sums and differences. Students use mental math to find the sums and differences of addition and subtraction facts at random. They solve addition and subtraction facts...
Lesson Plan
Curated OER

The Multiplier (small 2-digit by 1-digit numbers)

For Teachers 2nd
Second graders study digits in 2- or 3-digit whole numbers. They write and solve story problems which involve whole numbers, using addition, subtraction, multiplication, or division.
Worksheet
Curated OER

Mixed Review

For Students 1st - 2nd
In this math instructional activity, students solve the problems using the operation of addition to fill in the missing addends. They also apply some basic knowledge of geometry to solve the second set of questions.
Lesson Plan
Curated OER

Get a Line on Integers

For Teachers 6th - 8th
Students explore number sense by completing math function problems in class. In this integers lesson, students define integers and practice plotting them on a number line. Students utilize math functions such as addition and...
Lesson Plan
Curated OER

Ceramic shoes - wild and wacky

For Teachers 9th - 12th
Students explore the history of shoes and shoes from various cultures. They create a shoe using slab and coil techniques. They become familiar with basic additive and subtractive sculpting methods while adding imaginative features to...
Lesson Plan
Curated OER

My Family and Me: Our Similarities and Differences

For Teachers 8th - 12th
Students are introduced to basic genetic information to discover how they acquired the traits they have. Individually, they develop a family tree and identify the similarities and differences between two poeple. In groups, they examine...

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