Curated OER
Developing Strategies for Addition and Subtraction
Primary graders develop strategies to assist them with addition and subtraction. They discover number combinations and numerical facts which enable them to add and subtract more effectively. Students use these techniques to complete...
Curated OER
Working With Place Value
Students investigate the proper way to write numbers using decimals and commas. In this algebra lesson, students recognize the place value of a specific digit. They place numbers correctly on a number line.
Curated OER
Standard Written Method for Subtraction With Zeros
In this finding the differences worksheet, learners read the steps to solving subtraction problems with zeros in the ones place, and subtract two-digit numbers. Students solve 12 problems.
Curated OER
Who's In The Fact Family?
Students study related addition and subtraction facts. For this math lesson, students use related addition and subtraction to solve problems. Students use manipulatives to explore fact families.
Curated OER
Standard Written Method for Subtraction (2)
For this subtraction worksheet, students learn how to solve decomposition subtraction problems with 2-digit numbers. They then solve 9 subtraction problems on their own. The answers are on the last page of the packet.
Mathematics Vision Project
Module 6: Trigonometric Functions
Create trigonometric functions from circles. The first lesson of the module begins by finding coordinates along a circular path created by a Ferris Wheel. As the lessons progress, pupils graph trigonometric functions and relate them to...
West Contra Costa Unified School District
Simplifying Fractions
Encourage family participation at home with a reference tool designed to support learners' practice of simplifying fractions. Two pages offer detailed descriptions and labeled examples.
Mathematics Assessment Project
Inscribing and Circumscribing Right Triangles
High schoolers attempt an assessment task requiring them to find the radii of inscribed and circumscribed circles of a right triangle with given dimensions. They then evaluate provided sample responses to consider how to improve their...
Pennsylvania Department of Education
Shapes Around Us
Learners use manipulatives to study shapes. They sort shapes and use correct geometric terminology to describe them. Students find real-life examples of 2 and 3 dimensional shapes, and classify figures in their classroom according to...
NASA
Next Generation Spacecraft - Orion
Emergine space engineers discover the area of complex geometric shapes. They find that, just as a spacecraft is composed of many smaller parts, so can polygons be broken into smaller shapes.
Pennsylvania Department of Education
What Balances?
Students explore another meaning of subtraction as it pertains to the inverse of addition. In this what balances lesson plan, students identify the concept of subtraction as a balance. Students use subtraction facts to generate addition...
Curated OER
Making and Describing Shapes
Explore the concept of creating and describing 2D and 3D shapes. Using geometry your scholars will describe the attributes of shapes and their properties. They explore and discover what happens when you combine shapes and then take...
Curated OER
Composting "The Right Mix"
Students investigate the correct mix of material types for compost. In this composting lesson, students explore the correct amounts of different types of materials to create a compost heap. Students then create a compost heap.
Curated OER
Fractions: Adding Same Denominator
In this math worksheet, students look for the answers to the addition with fractions of the same denominator. There is a button at the top of the page for the answers.
Curated OER
Addition: Getting To Ten Then Adding The Rest
For this addition worksheet, students first write the 2 numbers in an addition problem that add up to 10, then write the answer by adding 1 additional number to 10.
Curated OER
Native American Pebble and Pot Game
Students participate in a game using 12 manipulatives. In this addition and subtraction lesson students play a game originated by the Native Americans and look at a number of items and calculate how many are hidden. Items looked at and...
Curated OER
Introduction to Fractions
With this packet, kids are introduced to fractional concepts by completing 10 pages of exercises. They learn equal and unequal parts, shading fractions, looking at pictures to determine fractions, finding equivalent fractions and finding...
Pennsylvania Department of Education
A Geometric Scavenger Hunt
Fifth graders connect their knowledge of polygons and polyhedrons. In this geometric shapes lesson, 5th graders identify and classify two- and three-dimensional objects. Students construct a polyhedron out of polygons and describe their...
Curated OER
BASE-ic Space Travel
In this 3-day place-value lesson, upper-elementary kids investigate the base 5 and base 2 systems as an introduction to exponents and powers. They create a pocket chart to help ground their understanding of bases, exponents, and powers,...
Pennsylvania Department of Education
Adding and Subtracting Three-Digit Numbers by Jumping
Second graders use data to graph information and draw conclusions. In this instructional activity on data analysis, 2nd graders practice gathering, sorting, comparing, and graphing data. Students differentiate data that can and cannot...
Curated OER
Following Specs.
Students utilyze a set number of DUPLO blocks to build a free-form construction project.
Curated OER
Balancing
Learners use a balance to complete subtraction problems and weigh out the items they take away. For this subtraction lesson plan, students use a pan balance and record their equations.
Curated OER
Cutting Corners
Second graders examine two-dimensional shapes using their characteristics. For this shapes lesson, 2nd graders identify similarities and differences by using cut out shapes, diagrams, mirrors, and graphic organizers.
Curated OER
Lattice Method of Multiplication Variances
Young scholars explore the lattice method of mulitplication variances through the game "Multiplication Wrestling." They view a model of how to play the game and play three rounds, recording their patterns and discussing the strategies...