Curated OER
Repeated Addition as Multiplication
While the first slide doesn't make much sense, the rest of the show is great. Kids are introduced to repeated addition as multiplication. They see images of equal groups of objects, each group is represented numerically by an addition...
K-5 Math Teaching Resources
Large Five Frames with Dots
Enhance young mathematicians' counting strategies using this large five frames printable. Here, you'll find a large one by five array with red counters to support adding and subtracting through visual images of numbers one through...
Yummy Math
Really Big Pumpkins
You may think your holiday pumpkins weigh a ton, but in a giant pumpkin contest, they actually do! Middle schoolers read about the winners of the 2014 giant pumpkin contests before solving three word problems involving multiplication and...
Virginia Department of Education
Arc Length and Area of a Sector
What do skateboarding and baked goods have in common with math? You can use them to connect half-pipe ramps and cakes to arcs and sectors. Pupils compare the lengths of three different ramp options of a skate park. They calculate the...
EngageNY
Generating Equivalent Expressions II
Discover how to apply the commutative and associative properties to generate equivalent expressions. The second lesson in the 28-part module asks pupils to rearrange an expression by grouping like terms. From there, they can combine...
EngageNY
Writing, Evaluating, and Finding Equivalent Expressions with Rational Numbers
Groups write and evaluate expressions for various phone plans and scenarios to find which is the best deal. They then compare different approaches to writing expressions for the same scenario and discuss the concept of equivalent...
EngageNY
Applying the Properties of Operations to Multiply and Divide Rational Numbers
Use properties to evaluate several multiplications and divisions. The 16th lesson in a series of 25 demonstrates to scholars how they can utilize properties of operations to evaluate complex numerical expressions involving multiplication...
Achieve
False Positives
The test may say you have cancer, but sometimes the test is wrong. The provided task asks learners to analyze cancer statistics for a fictitious town. Given the rate of false positives, they interpret the meaning of this value in the...
CK-12 Foundation
Decimal Multiplication: Reducing the Weight
Eight questions challenge mathematicians to multiply decimals. A color-coded tool with movable parts assist participants in answering word problems. Item response types include fill in the blank, multiple-choice, and a discussion. ...
EngageNY
An Exercise in Changing Scales
Classmates create a scale drawing from another scale drawing, changing the scale in the process. Groups enlarge or reduce the scale of the drawing and discuss their processes.
EngageNY
Identifying Proportional and Non-Proportional Relationships in Graphs 2
Work together to find proportional relationships. The sixth portion of the 22-part unit is a collaborative exercise. Teams work with given representations of relationships and determine if they are proportional by creating tables and...
Institute of Electrical and Electronics Engineers
Spring Scale Engineering
After examining how a spring scale works, teams work together to design their own general measurement device. Reading material provides background information, but there is no part of the procedure in which learners handle an actual...
Kenan Fellows
Isotopic Pennies
Many people confuse atomic mass and atomic numbers. The sixth of seven lessons in a unit requires scholars to find the weight of different groups of pennies. Then, they must solve how many of each type of penny exists in a closed system...
Curated OER
Counting, Properties of Numbers, and Reasoning about Numbers
Five days of lessons develop number sense and counting patterns, including odd and even numbers, 5s and 10s, doubles, and ways to make 10. Each session opens with fun finger play to reinforce counting and reasoning about numbers. Various...
Curated OER
Dividing Fractions
Reciprocals are the method used for dividing fractions in this instructional session. A fraction is defined as being a division problem, and then the whole group works together to solve several problems. They check for the reasonableness...
Curated OER
Roman Bernardo: Solving Linear Equations
Mathematicians use an inquiry method to solve linear equations. In this linear equations lesson, students practice solving equations using addition, subtraction, multiplication and division. They solve multi-step equations and equations...
Curated OER
Guess That Sequence!
Students explore number sense by completing problems in class. In this patterns instructional activity, students examine a group of numbers and identify what the pattern is and how it should correctly continue. Students practice...
Curated OER
Numbers 1-20
Count along as a class! Each slide contains a number and objects to count, 1-20. The images are fun and as they reach 10+ are grouped by ones and tens. This resource could be used in a variety of ways, is well put together, and has fun...
Curated OER
Making 10
Brilliant! This presentation helps kids discover all the different way they can make 10. Each slide contains 10 balls, as the kids count, each ball blinks, and the number appears under them to show how many. A plus sign pops up and the...
Curated OER
Classifying Polygons
A straight edge, a right angle, a number of vertices; sounds like it's time to classify polygons. That's right you and your class will learn all about the properties of polygons and how to classify them with this easy to follow...
Curated OER
Fractions (2)
Review or introduce your younger learners to simple fractions. They work through fifteen different problems, where the shaded amount must be identified as a fraction. For each problem an answer is included on the following slide. Tip:...
Curated OER
Fractions
Fractions are scary for a lot of young mathematicians. This cute presentation tries to take the "scary" out of fractions. The basics are covered: the numerator, the denominator, and the fact that a fraction is a representation of a part...
Curated OER
Number Bonds to 10: Determine the missing addend
Each slide contains a group of animals and an equation that adds up to 10. However each equation is missing a number, learners attempt to determine the missing addend to revile the number of animals hiding under the cloud. A fun,...
Scholastic
Eric Carle Author Study
Learn all about Eric Carle, find out about his famous caterpillar, and try out related art, science, writing, math, and social studies activities. The resource comes with plenty of materials to support your instruction.
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