La statistique est la branche des mathématiques qui consiste à recueillir des données, puis à les analyser afin d'établir des hypothèses utilisées pour prédire des évènements.

Les statistiques sont les données recueillies et celles obtenues à partir de calculs.

Third-grade math instruction is focused on the following areas: developing an understanding of multiplication and division and strategies for multiplication and division within 100; developing an understanding of fractions, especially unit fractions (fractions with numerator 1); developing an understanding of the structure of rectangular arrays and of area; describing and analyzing two-dimensional shapes.

The best way to ensure your students fully grasp the math concepts they'll need to successfully progress in their education is to practice as much as possible. The worksheets, puzzles, games, and other resources available here are the perfect solution for parents and teachers who want to provide their third graders with the tools they need to understand and excel in third-grade math.

Students strengthen their communicate skills about measurements by learning the meaning of base units and derived units, including speed one of the most common derived units (distance/time). Working in groups, students measure the time for LEGO MINDSTORMS(TM) NXT robots to move a certain distance. The robots are started and stopped via touch sensors and programmed to display the distance traveled. Using their collected data, students complete a worksheet to calculate the robots' (mean/average) speeds at given motor powers.

This short video and interactive assessment activity is designed to teach third graders about understanding division with remainders and illustrations.

This site talks about the reasons you need to running records in math. It includes a way of measuring the students' accuracy, fluency, and flexibility in their understanding of key math concepts. At the bottom of the article, you can sign up for free samples of running records for addition, subtraction, multiplication and division.

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