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Curated OER
Finding LCM
In this LCM worksheet, students read several paragraphs on finding LCM in various situations, then solve 25 problems.
Curated OER
Finding LCM
In this finding LCM worksheet, students read a substantial amount of information about finding LCM for numbers, then complete 20 problems using the information given.
Curated OER
How Does Climate Affect Plant Growth?
First graders compare plant samples obtained from two different sites to explore how climate affects plants.
Curated OER
Self-Assessment
Students take a personal inventory about behaviors. They determine if there are risky behaviors present that could be harmful. The inventory is used to help students examine how to make healthy decisions.
Curated OER
Life Science Review for Grade 4
In this life science review for grade 4 worksheet, 4th graders answer 25 multiple choice questions in standardized test format about life science.
Curated OER
Mechanical Advantage
In this mechanical advantage activity, learners use the equation for mechanical advantage to solve for output force or input force. Students complete 3 problems.
Curated OER
Exploring Biomes
In this biology worksheet, students watch a movie about various land biomes. Then they use the word list to the right to complete each of the statements. Students also complete the brief quiz about the movie that follows.
Curated OER
Spider Web
Pupils work together to get all of their team mates through the holes of an obstical course called the spider web while not touching the rope. In this team work lesson plan, students focus on working together.
Curated OER
Acid Rain Keeps Falling On My Head
Students measure the pH of local rain water. Students map the location of the collected rain water according to pH levels.
Cool Math
Coolmath: Pre Algebra: Prime Factorizations
In this tutorial, students learn how to do prime factorization by a few different methods, including factor trees and factor stacks. The exercises work their way up from 2-digit numbers up to 5 digits. Includes practice problems.
Shodor Education Foundation
Shodor Interactivate: Factorize
This Shodor site gives a brief explanation of factorization, and it allows you "to find all of the factorizations of a given number and then draw the product as the area of a rectangle on a grid."
University of Waterloo (Canada)
Wired Math: Primes and Prime Factors [Pdf]
Explore primes, prime factors, and composites using this collection of worksheets. Lots of detailed examples, interesting math facts, and colorful visuals. Acrobat Reader required.
PBS
Pbs: Greatest Common Factor
In this video, learn how to find the greatest common factor of two numbers. Then, see how this can be used to solve problems with large numbers. In the accompanying classroom activity, students learn to find prime factors using factor...
Cool Math
Coolmath: Pre Algebra Factorizations
Learn about "factorization" from Cool Math. Several examples and practice problems are provided.
Elias Saab
Math Drills: Prime Factorization Quiz
This site is an interactive quiz which provides students with a prime factorization problem. Students input their solution and have the program evaluate it. Hints are available if the student needs them, and explanations are provided...
PBS
Pbs Teachers:broom Forest: A Tall Trees Simulation
Explore environmental factors of an area that affect a species' characteristics over time. Construct a "broom" tree, sketch support structures similar to those used by the tall Amazon trees and explain the limitations of such structures.
PBS
Pbs Teachers: Methuselah Tree
Examine how scientists determine the age of living and non-living trees and identify factors that impact sizes of tree rings. Analyze tree ring samples and determine the age of the oldest sample.
University of Waterloo (Canada)
University of Waterloo: Cemc: Math Circles: Number Theory Ii [Pdf]
This worksheet provides a series of problem-solving questions that require higher order thinking skills. Questions will include finding the greatest common divisor, and least common multiple.
PBS
Pbs: Human Tree: Ratios
Watch as the National Museum of Mathematics creates an interesting series of images using ratios. This video focuses on the proportional relationship observed in fractals and challenges you to do some critical thinking using ratios and...
Cuemath
Cuemath: Prime Factorization
In this lesson plan, you will be learning prime factorization to solve various mathematical problems followed by solved examples and practice questions.
ClassFlow
Class Flow: Working With Prime and Composite Numbers
[Free Registration/Login Required] This flipchart allows students to practice working with prime and composite numbers. Students learn how to do prime factorization.
Illustrative Mathematics
Illustrative Mathematics: G Mg How Many Leaves on a Tree? (Version 2)
In this task, students must estimate the number of leaves on a large tree, taking into account various complex factors such as the area shaded by the tree, the area of irregularly shaped leaves, the uneven distribution of leaves, the...