National Security Agency
Equations and Expressions
Learners demonstrate their knowledge pictorially, concretely, and abstractly in this unit meant to last three hours over three days. Using hands-on activities, manipulatives, real-world applications, and problem solving, learners write...
Education Development Center
Adding Fractions with Unlike Denominators
If the fractions don't have a common denominator, make them have one. Learners first read and analyze a conversation of pupils trying to add 2/5 and 1/2. They compare the process of adding fractions to the process of adding quantities...
Curated OER
Writing Scripts For Math Podcast
Students create podcasts of student-created review questions using iPod, iTalk, iTunes, GarageBand, and Keynote. This lesson is intended for as a mathematics review but could be adapted to fit any subject across many different levels.
Curated OER
Math Maven's Mysteries: The Case of the Incredible Shrinking Garden
In these math word problem worksheets, 7th graders help solve the mystery about 'The Case of the Incredible Shrinking Garden.' Students find the new length and width measurements of the shrunken garden using the area of rectangle.
Curated OER
Add and Subtract Equations With Equal Sign - Guided Lesson Explanation
What sign is missing? Is this equation true? Rather than a worksheet, this resource is a one-page script for a guided lesson on addition and subtraction equations. While the pupil handout is missing, the teacher guide could be...
Curated OER
Addition of Numbers (Under 100) - Guided Lesson Explanations
Rather than a worksheet, this teacher resource is a one-page, scripted answer sheet for a guided lesson on the addition of numbers under 100. While the pupil handout is missing, the teacher guide could be reformatted for classroom use.
Curated OER
Implementing Algorithms Using Matlab
In this math worksheet, students practice implementing algorithms using the computer program of Matlab. They practice using the programs of scripts and functions.
Curated OER
Constructions of Isosceles and Equilateral Triangles
Pupils explore the difference between drawing and constructing a triangle utilizing The Geometer's Sketchpad on the computer. They create, develop and script constructions for both isosceles and equilateral triangles. Each student has to...
EngageNY
Percent
Extend percent understandings to include percents less than one and greater than 100. A great lesson has pupils build upon their knowledge of percents from sixth grade. They convert between fractions, decimals, and percents that are less...
EngageNY
Factoring Expressions
Factor in an informative resource when teaching about factoring. The 11th lesson in a 36-part module shows pupils how to factor algebraic expressions by applying the distributive property. Some of the problems involve expressions with...
EngageNY
Two-Step Problems—All Operations
Step 1: Use the resource. Step 2: Watch your class become experts in solving two-step problems. Scholars learn to solve two-step word problems in context. They use tape diagrams and algebraic techniques to break the problem into two,...
EngageNY
The Relationship of Multiplication and Division
Take any number, multiply it by five, and then divide by five. Did you end up with the original number? In the same vein as the previous lesson, pupils discover the relationship between multiplication and division. They develop the...
EngageNY
Replacing Letters with Numbers II
Teach about properties properly. Individuals investigate the commutative and identity properties for both addition and multiplication. They see that the properties hold true for all values by using substitution to test out several examples.
EngageNY
Read Expressions in Which Letters Stand for Numbers III
Those key operation words sure come in handy. Groups continue their work with converting between different notations for algebraic expressions. They work in stations to write the symbolic form for given verbal phrases. This is the 17th...
EngageNY
Substituting to Evaluate Addition and Subtraction Expressions
Substitute this resource for what you used to use. Learners identify patterns in data tables and write addition and subtraction expressions to represent relationships. Substitution allows them to solve problems in context in the 20th...
Curated OER
Place Value Practice
In this online interactive math skills worksheet, students solve 1 problem that requires them to identify the place value of the specified number. Students may submit their answers to be scored.
Curated OER
Place Value Practice
In this online interactive math skills worksheet, students solve 1 math problems that requires them to identify place value. Students may submit their answers to be scored.
Curated OER
Fill in the Blank: Addition Number Sentence
In this online interactive math skills worksheet, students examine an addition sentence and fill in the blanks to appropriately finish it. Students may submit their answers to be scored.
Curated OER
Fill in the Blank: Addition Number Sentence 2
In this online interactive math skills instructional activity, students examine an addition sentence and fill in the blanks to appropriately finish it. Students may submit their answers to be scored.
Curated OER
Object Shapes
This online activity, not really a printable worksheet, could be used to introduce a lesson on shapes or it could be used to check what your youngsters have learned. There are 36 slides of items of different shapes. Each slide has three...
Curated OER
Count and Tell
In this online interactive math skills worksheet, students examine the picture, count the number of ducks pictured, and enter the number in the provided space. Students may submit their answers to be scored.
Curated OER
Count & Tell 8
In this online interactive math skills worksheet, students respond to 1 question that requires them to count the pictured items and record the total number of items. Students may submit their answers to be scored.
Curated OER
Count & Tell : 10
In this online interactive math skills worksheet, students examine a set of pens, count the number of pens, and record the number. Students may view the correct answers.

Curated OER
Count & Tell 13
In this online interactive math skills instructional activity, students respond to 1 question that requires them to count the pictured items and record the total number of items. Students may submit their answers to be scored.