Curated OER
The Take-Awar Bar 1
Students use an Internet tool, "The Take-Away Bar" to solve subtraction problems by breaking them into parts. They write and solve comparison problems. Students make sensible estimates and check the reasonableness of answers. They use...
Curated OER
Common Sense Cookie Shop
First graders shop for a bag of cookies using toy money. In teams, they choose which variety to buy and decides which bills and coins are necessary to buy the bag of cookies and a cashier makes change. They tally the cookies purchased...
Curated OER
Number and Operations: Webbing Our Way Through Numbers
Second graders explore estimation and place value. For this place value lesson, 2nd graders estimate and construct numbers while working with spider activities. Students use addition and subtraction to compare estimates. Resources and...
Illustrative Mathematics
Reasoning about Multiplication and Division and Place Value, Part 2
The learner puts reasoning and estimation to work. The directions are to place a decimal in the answer to make the equation true. Pupils are to look at the two problems, one multiplication and one division, and estimate an answer. No...
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
Numberbook
In this elementary math worksheet, students practice writing the number in numeral and word form. They perform this skill for each number from one to ten and each number is done on a page.
Curated OER
Math: Counting on Others
Students use counting skills to decide who wins the Classroom Winter Games. They use numeral writing and tally marks to keep score. Students have an opportunity to pretend they are competing for medals in the Winter Games while using...
Curated OER
McONE Hundredth Day
Students explore the components of a calendar and counting through the preparation and celebration of the "One Hundredth Day" of school. Badges are worn and McDonald fries are enjoyed in the celebration.
Curated OER
Numeracy Lesson Plans
Students complete a series of lesson plans dealing with numbers, counting, and ordering. For this numbers lesson plan, students identify numbers, identify number patterns, count forwards and backwards, and more.
Curated OER
The Gum Drop
Students find the area of three figure by the traditional formulaic methods. Then they count the number of grid squares to double check. They show an intuitive sense of Pick's Algorithm by counting every two boundary squares as one unit....
Illustrative Mathematics
Summer Swimming
Here is a real-world application for systems of equations. When is it better to pay an enrollment fee and lower daily rate, and when is it better to pay the regular price? The local swim center is having a special offer, reductions in...
Illustrative Mathematics
Chocolate Bar Sales
In this real-world example, algebra learners start to get a sense of how to represent the relationship between two variables in different ways. They start by looking at a partial table of values that define a linear relationship. They...
Curated OER
Applied Science - Science and Math Lab (read without sight)
Students consider the senses. In this sight and touch lesson, students discover what it is like to function like a person who is blind. They work in groups and individually on various activities to experience this condition. This lesson...
Curated OER
Numbers Make Sense
Second graders explore number values by completing estimation problems in class. In this place value lesson, 2nd graders identify the use of decimals in numbers and how they relate to fractions or parts of a whole. Students utilize flash...
Curated OER
Subtracting Two- and Three-Digit Numbers
In this subtracting two- and three-digit numbers worksheet, students, with a partner, problem solve and calculate the answers to fourteen subtraction equations.
Curated OER
Math 4 - Act. 06: Spaghetti and Meatballs for All
Fourth graders use manipulatives to practice math patterns.
Curated OER
Guesstimate? NO Estimate!
Students discover the advantage of estimation over simple guessing using number relationships. They also discover how useful a mathematical tool estimation is in everyday life.
Curated OER
Mind Your Pints and Quarts: Making Sense of Liquid Measurement
Students convert among liquid measurement units. In this measurement lesson plan, students use Visual Thesaurus to gather information about customary units for liquid measure such as cup, pint, and quart, then students practice...
Curated OER
Would You Believe Your Eyes?
Students study the parts and functions of the human eye. They create dodecagons which are twelve-sided figures with twelve equal angles and share these with the class so that each student can begin to see how many different illusions can...
Curated OER
Maya Math: Addition and Subtraction
Learners examine how ancient Maya counted, and practice addition and subtraction using Maya number glyphs.
Curated OER
"Comprehension of Word Problems" Using a Table
Sixth graders practice solving math problems by utilizing a data table. In this number sense activity, 6th graders create a table using the numerical information about a fictitious farm's inventory. Students complete the empty segments...
EngageNY
An Application of Linear Equations
Just how far will the Facebook post go? Lead a discussion on how to manipulate the sum of a geometric series to figure out a formula to find the sum at any step. The plan contains an alternative to the discussion with more...
Curated OER
Number Operations
Fourth graders examine the relationship between multiplication and division and subtraction and division, and determine which operation is needed to solve various problems. They observe and participate in a teacher-led lecture, and...
Curated OER
Investigation - Distribution
Students match match one notice with one child for all children in their group. They will determine the correct number of notices needed by for the children in their group. Through activities, students discover one-to-one correspondence...