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Curated OER
Addition and Subtraction Facts to 20
Fact families, and the relationship between addition and subtraction are the foucs of this lesson. Learners explore strategies to help with their addition and subtraction facts. They use doubles, related facts, and fact families to help...
Scholastic
Study Jams! Relate Addition & Subtraction
Understanding the inverse relationship between addition and subtraction is essential for developing fluency in young mathematicians. Zoe and RJ explain how three numbers can form fact families that make two addition and two subtraction...
Curated OER
Inverse Relationship Between Addition and Subtraction
Elementary schoolers review their knowledge of addition and subtraction through studying fact families. They use cubes to help them add or subtract. Young scholars answer the teachers question with addition and subtraction fact answers.
Illustrative Mathematics
Kiri's Mathematics Match Game
Learning math is so much more fun when it involves playing games. Following the rules of the classic game Memory, young mathematicians flip over two cards at a time as they look for numbers whose sum or difference is equal to the value...
Curriculum Corner
Number Family Cards
Sixteen number families test young mathematicians' knowledge of the commutative and associative property of addition. Pupils list four problems—two addition and two subtraction—related to a given set of three numbers.
Curated OER
Subtraction with Regrouping Lesson Plan
Learners explore regrouping while subtracting. In this subtraction lesson, pupils manipulate base 10 blocks to demonstrate regrouping. Multiple resources are provided.
Curated OER
Who's In The Fact Family?
Students study related addition and subtraction facts. In this math lesson plan, students use related addition and subtraction to solve problems. Students use manipulatives to explore fact families.
Curated OER
Two-Digit Subtraction With Regrouping
Students practice their subtraction skills by solving 2 digit subtraction equations the teacher lists on the board. In this subtraction with regrouping lesson, students use the regrouping method to solve the 2-digit subtraction equations.
Curated OER
Far Out Fact Families
Second graders explore related multiplication and division facts. They study the inverse relationship of multiplication and division and engage in a group discussion about families. They complete a web-based lesson which is imbedded in...
Curated OER
the Whale Game
Learners listen to whale stories and answer addition and subtraction problems in the stories. In this addition and subtraction activity, students receive 20 goldfish. Based on the story they eat the goldfish. Learners write...
Curated OER
Relationship Between Addition and Subtraction
Students are taught how to add and subtract and use number sense to solve basic math problems. In this addition and subtraction instructional activity, students are being taught using theories from different philosophers in education....
Curated OER
Evaluating Information Quality
Students evaluate information they are given and identify the quality of the information as fact, fiction, and point of view. In this information quality lesson plan, students also discuss how they can pick out good information verses...
Curated OER
Combining Foods
Students explore addition. In this math activity, students discover how addition and subtraction are related. Students model related addition and subtraction facts.
Curated OER
Relating Division and Subtraction
Third graders relate the process of division to subtracting equal groups. Through guided practice and teacher demonstration, they complete division problems using a subtraction method. Students complete problems independently for...
Curated OER
Inverse Relationship Between Addition and subtraction
First graders review number facts to illustrate the relationship between addition and subtraction. In this inverse relationship lesson, 1st graders write an addition sentence and then invert the numbers to show the subtraction fact.
Pennsylvania Department of Education
Practice Makes Perfect
Students study fact families. In this math lesson, students use fact families to play a game of concentration. Students identify subtraction facts they need to learn.
Curated OER
Transportation Math
Students use mathematical operations to examine truck drivers and the math they use everyday. In this transportation math lesson, students read word problems that relate to transportation and the math needed to solve the word problems....
Curated OER
Balancing Discoveries
Students use a balance to help them with their addition facts. In this addition lesson plan, students also play the seven up game to memorize their facts.
Curated OER
Addition and Subtraction
Students develop their own strategies to solve basic addition and subtraction facts. In this addition and subtraction lesson plan, students use strategies they already know and new ones to solve problems.
Curated OER
Math: Addition and Subtraction
Young scholars practice addition and subtraction skills by visiting Web sites with math games, quizzes, and related activities They play various games involving sports, racing, and catching fireflies while improving basic math skills..
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....
Curated OER
A Beating Heart
Students collect and analyze data using percent difference. In this algebra lesson, students relate the concepts of algebra to cardiac physiology.
Houghton Mifflin Harcourt
Unit 2 Math Vocabulary Cards (Grade 3)
A set of third grade math vocabulary cards include topics that range from addition properties to terms like estimate and fact family. Each sheet has two cards on it. The top half is the word printed in bold text,...
Curated OER
Dinosaur Math
Second graders practice vocabulary related to measurement, mathematics, and dinosaurs. Using the engaging topic of dinosaurs, learners will calculate various information about dinosaurs and use measurement vocabulary. They will also...