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Organization: North Carolina Standard Course of Study Grade Band: 4th Grade Standard Goal: The learner will demonstrate an understanding of mathematical relationships.
| Chaos |
Lesson: Students learn about the concepts and applications of chaos.
| | Fire!, Probability, and Chaos |
Lesson: Utilizes and reinforces concepts of probability, mean, line plots, experimental data, and chaos in analyzing a forest fire simulation.
|  Fire!! |
Activity: Run a simulation of how a fire will spread through a stand of trees, learning about probability and chaos. Parameters: Probability that a tree catches fire if its neighbor is on fire. Probabilities are input as fractions or decimals.
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 Arithmetic Quiz |
Activity: Similar to Arithmetic Four: Arithmetic Quiz gives the user randomized questions to answer on arithmetic with whole numbers and integers. Parameters: Level of difficulty and types of questions. Arithmetic Quiz is one of the Interactivate assessment quizzes.
|  Estimator Quiz |
Activity: Test your estimation skills by answering questions. This quiz asks you to estimate the answer to addition, multiplication, and percentage questions. Choose difficulty level, question types, and time limit. Estimator Quiz is one of the Interactivate assessment quizzes.
|  Factorize |
Activity: Visualize factors through building rectangular areas on a grid. First enter all the factorizations of a number, then draw each factor set as an area on the grid. Factorize is one of the Interactivate assessment explorers.
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