A flashcard featuring a math symbol for Multiplication

Flashcard of a math symbol for Multiplication

A flashcard featuring a math symbol for Multiplication

"Showing the Effect of Variations in Temperature on Bacteria Growth. a, a single bacterium; b, its progeny in twenty-four hours at fifty degrees; c, its progeny in twenty-four hours at seventy degrees." — Blaisedell, 1904

Bacteria growth

"Showing the Effect of Variations in Temperature on Bacteria Growth. a, a single bacterium; b, its progeny…

Illustration of 2 children comparing multiplication flash cards. It can be used to write mathematics story problems involving multiplication.

Children Holding Multiplication Cards

Illustration of 2 children comparing multiplication flash cards. It can be used to write mathematics…

Addition, subtraction, and multiplication wheels students use to spin and find the solutions.

Number Wheels

Addition, subtraction, and multiplication wheels students use to spin and find the solutions.