Illustrative Mathematics
Illustrative Mathematics: Counting Dots in Arrays
This activity addresses CCSS 2.OA.C.4 where students count dots in an array using repeated addition. This skill lays the foundation for an understanding of multiplication.
Illustrative Mathematics
Illustrative Mathematics: Counting Dots in Arrays
This task aims to show students that there is often more than one way to represent a quantity. This lesson plan also lays a foundation for students to understand the commutative property of multiplication.
TeachEngineering
Teach Engineering: Robotics Peripheral Vision
This unit is designed for advanced programming classes. It leads students through a study of human vision and computer programming simulation. Students apply their previous knowledge of arrays and looping structures to implement a new...
Other
Institute and Museum of the History of Science: Mind of Leonardo
A comprehensive museum-mounted exhibition on Leonardo da Vinci looks at all his intellectual and creative pursuits: artistic, scientific, mathematic, and technological. Includes an array of stunning images and video presentations, along...
Other
U of Cambridge: Tycho Brahe and the Separation of Astronomy From Astrology
The subject of the paper is the shift from an astrology-oriented astronomy towards an allegedly more objective, mathematically grounded approach to astronomy. This shift is illustrated through a close reading of Tycho Brahe's scientific...
Quia
Quia: Multiplication Tables 1 12
Practice multiplication facts by playing Concentration-like game.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Distributive Property Illustrated
This is part of a math forum at Drexel University. A student gets frustrated when asked to solve a problem using the distributive property. Never fear. Dr. Math to the rescue! Illustrations and detailed examples help provide...