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Curated OER
Order of Operation
Students solve problems using the order of operation. In this algebra lesson, students factor, subtract, add and divide using the correct order to remove parentheses. They simplify expressions by combining like terms.
Curated OER
Using Doubles To Subtract
In this subtraction learning exercise, 2nd graders use numerals that are doubles. Students complete 10 addition and subtraction problems.
Pennsylvania Department of Education
Links Away: Looking Back and Moving Forward
Students explore fact families. In this math lesson, students use links to model a fact family. Students solve addition and subtraction problems.
Curated OER
Maya Math: Addition and Subtraction
Young scholars examine how ancient Maya counted, and practice addition and subtraction using Maya number glyphs.
Curated OER
Exercise Set 2.6: An Introduction to Functions
In this functions activity, high schoolers solve 70 short answer questions. Students find domain of functions and evaluate them for a given value. High schoolers determine if a mapping diagram represents a function.
Curated OER
Investigation - Who is Right?
Third graders investigate two mathematic scenarios and determine which is correct. They compare adding columns and places (such as the tens place, hundreds place, and so on) and familiarize themselves with how to add larger numbers.
Curated OER
Choose the Operation: Plus or minus (up to 100)
Investigate the relationship between addition and subtraction as scholars fill in these number sentences, each of which is missing a symbol. Is it a subtraction or addition equation? There are 20 of these to start, all written...
Curated OER
Two Digit Addition Without Regrouping
No regrouping required. Hone basic subtraction skills with 20 problems. Learners subtract double-digit numbers.
Curated OER
Finding Solutions by Working Backwards
In this math activity, students learn to solve word problems by working backwards. Students read the 20 word problems and solve them, choosing the best answer from 4 choices. There are helpful hints on the page to clue students to work...
Curated OER
Learning the Multiplication Facts: Part 1
When students explore mathematics through patterns they will build a strong number sense and creative analysis skills. This presentation shows students that 0's, 1's, 2's, 5's, 6's, and 9's all have patterns. Tip: Before revealing each...
Futures Channel
Algebra Magic
Abracadabra! Letters can be used in math to represent numbers with the operations of addition, subtraction, multiplication, and division to solve problems! Math magicians will participate in an activity that uses a calculator and a bag...
World Wildlife Fund
Arctic Take 6
The magic number is six! Using a 6x table, young math stars practice adding, subtracting, multiplying, and dividing two-digit numbers with the number six. This learning exercise also touches on making tessellations with hexagons.
Curated OER
Word Problem Solving Strategies Cookies 2
This is a fantastic template to guide scholars in solving math word problems! Students read a word problem dealing with sales and profits, and fill in a graphic organizer to guide the process. They consider important information, the...
Curated OER
Calculator Word Problems
Eight word problems help learners to problem-solve using a calculator. They'll add, subtract, multiply, and divide to find each answer. Note: The problems are intended for a British audience so all monetary values are in pounds and...
Curated OER
Pictographs
What do these pictographs show? Scholars analyze three sets of data organized into pictographs, filling in several comprehension questions about each. The first one is done for them as an example, but consider going over it together to...
Curated OER
Mass-Mass Relationships
Students investigate mass-mass relationships using potassium carbonate and hydrochloric acid. For this mass-mass relationship lesson plan, students measure a certain amount of potassium carbonate and determine how much hydrochloric acid...
Curated OER
Mass-Mass Relationship
High schoolers investigate mass-mass relationships in the lab. In this mass-mass relationship lesson plan, students mix sodium carbonate with hydrochloric acid to produce sodium chloride, water and carbon dioxide. High schoolers use the...
Florida Center for Reading Research
Phonological Awareness: Phoneme Matching, Final Phoneme Pie
Words are interesting things—you can change them by adding or subtracting phonemes. Here, emergent readers change the pictures on their phoneme pie by removing or adding various final phonemes. A fun way to build phonetic competency!
Curated OER
Calculate the Slope of a Line Using Two Points
Find that slope! This video does an excellent job of demonstrating how to use the slope formula to find the slope of a line using two points. The instructor first reviews the definition of slope of a line, then works three problems using...
Mathematics Vision Project
Module 3: Polynomial Functions
An informative module highlights eight polynomial concepts. Learners work with polynomial functions, expressions, and equations through graphing, simplifying, and solving.
Inside Mathematics
Party
Thirty at the party won't cost any more than twenty-five. The assessment task provides a scenario for the cost of a party where the initial fee covers a given number of guests. The class determines the cost for specific numbers of guests...
Curated OER
Carrying to Tens and to Hundreds
In this math worksheet, students learn to add larger numbers, carrying 2 times to the tens and to the hundreds. Students study the detailed pictures and examples; there are no problems to solve on the page.
Curated OER
Addition Terminology and Practice
For this addition worksheet, learners review the terminology and definitions for the words addends and sum. Students then write the given numbers as sums in as many different ways as they can. Learners also write addition sentences for...